1. Manuals
  2. Brands
  3. Overland Storage Manuals
  4. Network Hardware
  5. SnapSAN S2000
  6. User manual

Overland Storage SnapSAN S2000 User Manual

Hide thumbs Also See for SnapSAN S2000:
Table of Contents

Advertisement

Quick Links

Download this manual
SnapSAN™ S2000
Overland
Storage
July 2011
10400277-004

User Guide

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the SnapSAN S2000 and is the answer not in the manual?

Questions and answers

Related Manuals for Overland Storage SnapSAN S2000

Summary of Contents for Overland Storage SnapSAN S2000

  • Page 1: User Guide

    SnapSAN™ S2000 Overland Storage User Guide July 2011 10400277-004...
  • Page 2 Overland Storage. Overland Storage provides this manual as is, without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Overland Storage may make improvements or changes in the product(s) or programs described in this manual at any time.
  • Page 3 Preface This user guide explains how to install, setup, and use your new Overland Storage SnapSAN S2000 appliance and its SnapSAN Manager Suite software to perform tasks such as create arrays and logical volumes, modify configuration settings, and take snapshots.
  • Page 4 SnapSAN S2000 User Guide Conventions This user guide exercises several typographical conventions: Convention Description & Usage Boldface Words in a boldface font (Example) indicate items to select such as menu items or command buttons. Ctrl-Alt-r This type of format details the keys you press simultaneously. In this example, hold down the Ctrl and Alt keys and press the r key.

  • Page 5: Table Of Contents

    Chapter 2 - Installation and Setup First Things First – Activate Your Warranty! ....................2-1 Recommended Drive Configurations ...................... 2-2 SnapSAN S2000 Rack Installation Overview .................... 2-2 Powering Up the SnapSAN S2000 ......................2-3 Chapter 3 - Initial Configuration Using the Windows SnapSAN Manager ....................3-1 Installing an iSCSI Initiator ........................
  • Page 6 Chapter 7 - Appliance Management Overview ..............................7-1 Hard Disks Category ........................... 7-3 SnapSAN Pools Category .......................... 7-4 Manage a SnapSAN S2000 Pool ......................7-6 Extend a SnapSAN Pool ........................7-7 Destroy a SnapSAN Pool ........................7-7 Create a SnapSAN Pool ........................7-8 SnapSAN Targets Category ........................
  • Page 7 SnapSAN S2000 User Guide Contents Extending A SnapSAN Target ......................7-22 SnapSAN Replicas Category ........................7-23 Manage SnapSAN Replica ........................ 7-24 Create SnapSAN Replica ........................7-26 Destroy SnapSAN Replica ........................7-27 Network Category ............................ 7-28 Network Connections Category ....................... 7-28 Properties Category ........................
  • Page 8 SnapSAN S2000 User Guide Contents Edit Network Interface ........................8-19 Delete Network Interface ......................8-20 Network Route Information ......................8-20 Create Network Route ......................... 8-21 Specific Network Item Change Pages ..................8-21 Network Ping ..........................8-22 Network Traceroute ........................8-23 Targets Tab ..............................
  • Page 9 SnapSAN S2000 User Guide Contents Delete Storage Pool ........................8-55 Extend Pool ............................ 8-56 Set Pool Cache ..........................8-56 Pool Markers ..........................8-57 Devices Tab ............................... 8-57 Devices ..............................8-58 Content Sections and Links ....................... 8-58 Actions Available ..........................8-58 Other Device Tab Subpages ......................
  • Page 10 SnapSAN S2000 User Guide Contents Lesser GPL ............................. C-6 Copyright Notices and Licenses ......................C-13 Appendix D - VMware Plug-In Install SnapSAN Manager Suite ........................ D-1 Install VMware Plug-in ..........................D-1 Create Datastore ............................D-2 Appendix E - VSS Hardware Provider Overview ..............................

  • Page 11: Chapter 1 - Overview

    SnapSAN S2000 software provides a flexible, intelligent, iSCSI-based storage area network (SAN) solution for virtualized server environments and the growing demand for data storage. With a SnapSAN S2000 appliance, you can store, share, protect, and manage data through a single easy-to-use Windows or web interface.

  • Page 12: Windows Snapsan Manager

    SnapSAN S2000 User Guide The figure below illustrates how the SnapSAN S2000 software can map a set of independent disk drives, connected to the network by a RAID controller, to a storage pool from which seemingly “local” disks of user-defined size can be created and shared by all the users on the network.

  • Page 13: Chapter 2 - Installation And Setup

    Installation and Setup CHAPTER This chapter explains how to install a SnapSAN S2000 appliance. Sections in this chapter include: • First Things First – Activate Your Warranty! • SnapSAN S2000 Rack Installation Overview • Powering Up the SnapSAN S2000 First Things First – Activate Your Warranty! Before installing your new unit, it is essential that you activate your Overland warranty.

  • Page 14: Recommended Drive Configurations

    SnapSAN S2000 User Guide Recommended Drive Configurations Before installing or adding drives to a SnapSAN S2000 appliance, the following must be observed: • Different capacity drives can be installed; however, they should not be included in the same RAID array, because capacity usage for all drives in the RAID is limited to the capacity of the smallest drive member.

  • Page 15: Powering Up The Snapsan S2000

    2. Insert the SnapSAN S2000 into the rack. 3. Connect the network and data cables. 4. Attach the power cords. NOTE: A PDF of the Quick Start Guide is available on the Overland Storage web site: http://docs.overlandstorage.com/snapsan Powering Up the SnapSAN S2000 The power switch is on the front panel located on the left side bracket.

  • Page 16: Chapter 3 - Initial Configuration

    Initial Configuration CHAPTER After installing a new SnapSAN S2000 appliance, there are two ways to handle the initial configuration of an appliance: • A Windows program (Windows SnapSAN Manager) is installed as part of the SnapSAN Manager Suite on a network computer and can be used to configure any SnapSAN S2000 appliance on the network (“Using the Windows SnapSAN...
  • Page 17 SnapSAN S2000 User Guide The installation procedure automatically configures the Windows Firewall to allow Windows SnapSAN Manager and its Appliance Discovery Service to access TCP and UDP port 4309 on your computer. If you are using SnapServer Manager (SSM), it configures access to TCP and UDP port 111.
  • Page 18 SnapSAN S2000 User Guide 4. Review the license agreement, click the box to accept, and click Next to continue the installation. 5. At the Setup Type window, click Typical to continue. NOTE: The Typical option is recommended as the optimum configuration.
  • Page 19 SnapSAN S2000 User Guide 6. At the confirmation window, click Install. The progress window is displayed with a Status bar showing the amount completed. It may take several minutes to complete the installation. When done, the Next button becomes active.

  • Page 20: Configuring The Appliance With Windows Snapsan Manager

    “Configuring the Appliance with Windows SnapSAN Manager.” Configuring the Appliance with Windows SnapSAN Manager To configure a SnapSAN S2000 appliance using Windows SnapSAN Manager: 1. If not already running, start the Windows SnapSAN Manager by selecting Windows Start > All Programs > SnapSAN > SnapSAN Manager.
  • Page 21 SnapSAN S2000 User Guide 2. The SAN Appliance Setup Wizard Before You Begin page reminds you to check that the appliance’s disks are correctly inserted. Once you have checked the disks, click Next to move to the next page. 3. At the EULA page, review the license agreement, click the box to accept, and click Next to continue the installation.
  • Page 22 SnapSAN S2000 User Guide If activating now, a second window (Activation) opens. Follow the onscreen instructions to complete the activation. Click Next when done. 5. At the Identity window, enter a new name if you want to rename the appliance, and click Next.
  • Page 23 SnapSAN S2000 User Guide 6. At the Password window, you must enter a password for the appliance, confirm it by re-entering it, and then click Next. IMPORTANT: Overland recommends using a strong password of at least six alphanumeric characters. 7. At the Pool Creation page, select the type of RAID policy you want.
  • Page 24 SnapSAN S2000 User Guide • RAID 5 – High availability storage (hot spare optional) • RAID 6 – Very high availability storage (hot spare optional) • RAID 10 – Multiple duplicated performance storage (hot spare optional) • RAID 50 – Multiple high availability storage (hot spare optional) •...

  • Page 25: Using The Web Management Interface

    SnapSAN S2000 User Guide When the wizard finishes, the initial (default) Windows SnapSAN Manager window is displayed showing the new volumes on the S2000 (such as “DSK1_VOL4”). Chapter 4, “Storage Management,” describes in general how to use Windows SnapSAN Manager and also how to set up and manage the SAN.

  • Page 26: Assigning A Static Network Address

    SnapSAN S2000 User Guide Assigning a Static Network Address As shipped, the appliance is configured to get its network address using DHCP. If you are not running a DHCP server, manually set the network address as follows: 1. Connect a monitor and keyboard to the appliance.

  • Page 27: Finding The Dhcp Network Address

    SnapSAN S2000 User Guide 4. Using Tab or the Up and Down arrow keys, move to the DHCP Enabled field, and press Enter to disable DHCP. 5. Enter the Static IP Address and Static Netmask for the appliance in the appropriate fields.

  • Page 28: Configuring The Appliance

    You can prevent this happening in future by downloading the appliance’s security certificate and installing it in your browser. In order for your browser to trust the secure connection to your SnapSAN S2000 appliance permanently, the CA certificate must be installed in your browser. A link to the certificate can be found on the System page (see“System Tab”...
  • Page 29 SnapSAN S2000 User Guide 3. At the Before You Begin window, the appliance’s serial number and current Hostname are displayed. To start configuring the appliance, click Next. 4. At the Activate page, review the activated settings for the appliance and click Next.
  • Page 30 SnapSAN S2000 User Guide 5. Enter the appliance’s network name (also known as the hostname) in the Identify window, and click Next. Optionally, you can enter your local network’s Domain Name. The network name must start with a character (a-z, A-Z), use alphanumeric characters or a dash (-) character, and must not include any spaces.
  • Page 31 SnapSAN S2000 User Guide 7. At the NTP Server page, select the option you want concerning the use of a Network Time Protocol (NTP) server, and click Next. An NTP server ensures that the system time on the appliance remains synchronized with any other systems using an NTP server.
  • Page 32 SnapSAN S2000 User Guide 8. At the iSNS Server page, specify an Internet Storage Name Service (iSNS) server, and click Next. The iSNS protocol aids the discovery of iSCSI hosts and targets. It is part of the iSCSI protocol suite. The most widely used iSNS server is available free from Microsoft (see http://www.microsoft.com/downloads).
  • Page 33 SnapSAN S2000 User Guide 10. At the Pool Creation page, configure your storage and create a storage pool, and then click Next. A choice of storage types is available, depending on the number of physical disks present in the system and on whether you have a hardware RAID controller installed.
  • Page 34 SnapSAN S2000 User Guide Click Home in the Tab bar to go to the appliance’s home page to see an overview of the targets, pools, and devices available on the appliance. NOTE: Chapter 8 describes how to use Web Management Interface.

  • Page 35: Chapter 4 - Storage Management

    This chapter describes how to carry out the following basic storage management tasks using the Windows SnapSAN Manager installed on a network computer that can access the SnapSAN S2000. • Overview of the Windows SnapSAN Manager (below) • Creating a SnapSan disk...

  • Page 36: Creating A Snapsan Disk

    PCs and servers. • SnapSAN S2000 Network – Chapter 6, “Network Management,” describes how to configure and manage the SnapSAN S2000 network as a whole. • Appliances – Chapter 7, “Appliance Management,” describes how to configure and manage SnapSAN S2000 storage appliances.
  • Page 37 SnapSAN S2000 User Guide 2. At the Disk Create dialog box, select your settings: a. Select from the top drop-down list the SnapSAN pool you want to use for the new disk. A description of the pool selected is given in the dialog box together with a star rating for its performance characteristics.

  • Page 38: Backing Up Data

    The disk is ready when the progress bar disappears. To confirm that the new drive is present, you can open My Computer. Backing Up Data Your SnapSAN S2000 appliance provides multiple ways to back up your data including snapshots, replicas, and mirroring. Using Snapshots The snapshot has become an essential component of a modern data storage solution.

  • Page 39: Using Replicas

    While not be feasible in all cases, the SnapSAN S2000 also supports the export and import of replicas on transportable media, such as a USB disk (“Export to USB Devices”...

  • Page 40: Creating And Replicating A New Disk Simultaneously

    SnapSAN S2000 User Guide • To replicate an existing storage disk over the network, follow the instructions given in “Replicate Disk Task” on page 5-12. • To replicate an existing storage disk using export and import, follow the instructions in the Web Management Interface chapter “Replicant Tab”...

  • Page 41: Using Mirroring

    SnapSAN S2000 User Guide 4. From the new tabs, select the Replication tab and configure: a. Check the Create Replica check box to enable replication. b. Choose a Storage pool from the drop-down list. The tab shows the redundancy and speed ratings for the pool you select together with both the amount of free space available and required.

  • Page 42: Synchronous Mirroring

    Creating and Mirroring a New Disk Simultaneously NOTE: MPIO software and a Neutral Storage Host are required for mirroring. 1. At the Overview screen, click Create SnapSAN S2000 Disk. 2. At the Disk Create screen, select your settings—but DON’T CLICK the OK button.
  • Page 43 SnapSAN S2000 User Guide 4. From the new tabs, select the Mirroring tab and configure: a. Check the Create Mirror check box to enable mirroring. b. Choose a Storage pool from the drop-down list. The tab shows the redundancy and speed ratings for the pool you select together with both the amount of free space available and required.

  • Page 44: Chapter 5 - Pc And Servers Management

    By selecting PCs and Servers from the Other Places list on the Home screen, the PCs and Servers screen is shown. Use this screen to select the PC computer or server you want to configure or manage. 10400277-004 07/2011 ©2010-11 Overland Storage, Inc.

  • Page 45: Overview Screen

    SnapSAN S2000 User Guide Overview Screen To access the PCs and Servers Overview screen, do one of the following: • Double-click an unlocked (blue) server icon. This is the same as selecting the unlocked (blue) server icon and clicking the Manage PC or Server option on the left.
  • Page 46 SnapSAN S2000 User Guide • When a SnapSAN disk, replica, or mirror is selected in the content area, two more tasks appear: • Destroy SnapSAN Disk (see page 5-9) • Extend SnapSAN Disk (see page 5-10) Categories List Four options are available in the Categories list: •...

  • Page 47: Create Snapsan Disk

    SnapSAN S2000 User Guide Create SnapSAN Disk When you select Create SnapSAN Disk from the PC and Server Tasks list, the Disk Create dialog box opens. Choose the appropriate settings for your storage disk: • Storage – From the drop-down list, select the storage pool you want to use for the new disk.

  • Page 48: Disk Create Advanced Settings

    SnapSAN S2000 User Guide Windows SnapSAN Manager creates a volume on the appliance, assigns it an iSCSI target, sets up discovery controls, and configures the Windows server so the iSCSI subsystem can discover the disk. Then the Windows SnapSAN Manager logs into the disk, partitions it, creates an NTFS file system on it using Quick Format, and assigns it a drive letter.
  • Page 49 SnapSAN S2000 User Guide • Replication (optional licensed feature) – If licensed, select the Replication tab to configure a replica of the disk. Click the Create Replica check box to enable replication and then choose a storage pool for the replica from the drop-down list. The tab shows the redundancy and speed ratings for the pool you select together with the amount of free space available and the amount required.
  • Page 50 SnapSAN S2000 User Guide • Mirroring (optional licensed feature) – If licensed, select the Mirroring tab to configure a mirror of the replica on the disk. NOTE: You cannot select both replication and mirroring for a storage disk. • Partitioning – Select the Partitioning tab to specify how the disk should be partitioned.
  • Page 51 SnapSAN S2000 User Guide Select a partitioning scheme by clicking the button alongside it: • MBR Legacy – The Master Boot Record scheme offers backwards compatibility with the legacy PC standard, which is limited to 4 partitions, each up to 2 terabytes in size.

  • Page 52: Destroy Snapsan Disk

    SnapSAN S2000 User Guide The figure following illustrates the dataflow between the applications running on the host and the disks in the iSCSI appliance when multiple interfaces are being used. Destroy SnapSAN Disk To remove a selected storage disk, use the Destroy SnapSAN Disk option from the PCs and Servers Tasks list.

  • Page 53: Extend Snapsan Disk

    SnapSAN S2000 User Guide Extend SnapSAN Disk You can extend the size of a SnapSAN storage disk manually by selecting it in the view and then selecting Extend SnapSAN Disk from the PC and Server Tasks list. The Disk Extend dialog box is shown. Enter the new size of the disk and click OK.

  • Page 54: Disk Tasks

    SnapSAN S2000 User Guide The Disk Tasks list shows the management tasks you can perform on the disk: • Rename Disk (see page 5-11) • Configure Auto Extend (see page 5-12) • Replicate Disk, if licensed and not mirrored (see...

  • Page 55: Configure Auto Extension Task

    SnapSAN S2000 User Guide Configure Auto Extension Task To configure the automatic disk extension, select Configure Auto Extend from the Disk Tasks list. Use the dialog box to specify by what percentage the disk should be extended and what minimum percentage of the disk should be kept free. You can also specify a maximum size for the disk.

  • Page 56: Mirror Disk Task

    SnapSAN S2000 User Guide 3. At the Manage Disk screen, click Replicate Disk. 4. Select the destination Storage. The top panel shows details of the SnapSAN Disk to be replicated (the source). The bottom panel shows details of the replica. Use the drop-down list to select a storage pool where the replica will be created.
  • Page 57 SnapSAN S2000 User Guide To mirror a previously created storage disk: 1. Select the newly created SnapSAN Disk in the content area to expand the options in the PC and Server Tasks list. 2. Click Manage Disk in the PC and Server Tasks list.

  • Page 58: Categories

    SnapSAN S2000 User Guide 4. Select the destination Storage. The top panel shows details of the SnapSAN Disk to be mirrored (source). The bottom panel shows details of the mirror (destination). Use the drop-down list to select a storage pool where the mirror will be created.

  • Page 59: Replication Category

    SnapSAN S2000 User Guide Replication Category Select Replication from the Categories list to manage a replicated disk. This view displays the replicated disk and the storage available for replicas. When the replicated disk is selected, two tasks are shown in the Disk Tasks list: •...

  • Page 60: Mirroring Category

    SnapSAN S2000 User Guide Mirroring Category Select Mirroring from the Categories list to manage your storage disks that are mirrored. This view displays the mirrored disk and its plexes. When either the mirrored disk or the Leader Plex is selected, one task is shown in the Disk Tasks list: •...

  • Page 61: Paths Category

    SnapSAN S2000 User Guide Paths Category Select Paths from the Categories list to set up multiple paths between the PC or server (or more strictly, the initiator) and the selected disk (the target). This view displays information about the status of the paths and enables you to add and remove paths.

  • Page 62: Snapsan Replicas Category

    SnapSAN S2000 User Guide SnapSAN Replicas Category From the Home screen, click the SnapSAN Replicas category to view all the SnapSAN replicas that have been created. If a replica is on the same SAN as the PC or server, the drive letter and hostname of the replicated disk is displayed.

  • Page 63: Snapsan Replica Properties Management

    SnapSAN S2000 User Guide SnapSAN Replica Properties Management By selecting Manage SnapSAN Replica from the SnapSAN Replicas category default screen, the SnapSAN Replica properties screen is displayed. The calendar enables you to check whether any recovery points have been recorded on a selected day.
  • Page 64 SnapSAN S2000 User Guide Disks that have been created in this way are known as mappings. Changes made to a mapping do not affect the replicated disk or the replica. Similarly, changes to the replicated disk (which are reflected in the replica) do not affect any mappings.

  • Page 65: Properties & Scheduler Category

    SnapSAN S2000 User Guide • Destroy SnapSAN Disk – A dialog box pops up for you to confirm the destroy operation as it will delete all the data on the mapping. This means that any changes made to the mapping will be lost although the original mapping can be created again from a recovery point.

  • Page 66: Queued And Completed Tasks Category

    SnapSAN S2000 User Guide NOTE: The scheduler for Replication is only used on Windows Systems. Scheduled replication for any other OS is not supported through the scheduler. There is a utility, called remote_replicate, which works with cron on Unix systems in order to add to a schedule.
  • Page 67 SnapSAN S2000 User Guide Select a task and then either click the View button or select View Task from the PCs and Server Tasks list to see the Task View window which gives more information about the task. To clear the tasks from the log, either click the Clear button under a list or select the appropriate Clear All task option from the PCs and Server Tasks list.

  • Page 68: Chapter 6 - Network Management

    Discovery process • User Interface Preferences • About page Overview Select the SnapSAN Network option from the Other Places list to access the networking options. The SnapSAN Network Properties window is the default view. 10400277-004 07/2011 ©2010-11 Overland Storage, Inc.

  • Page 69: Setting Up Storage Groups

    SnapSAN S2000 User Guide From this window, you can carry out the following network management tasks using the Windows SnapSAN Manager: • Grouping appliances together for ease of management (see below) • Using the Discovery service to locate appliances in the network (see...

  • Page 70: Discovery

    SnapSAN S2000 User Guide Discovery The Windows SnapSAN Manager is set up to discover SnapSAN appliances on your network automatically. Sometimes, however, when the network is complex (for example, where there are multiple subnets) the discovery operation may have to be configured manually.

  • Page 71: Add Discovery Entry

    SnapSAN S2000 User Guide Add Discovery Entry Click the Add button (or select the Add Discovery Entry option from the tasks list) to add an appliance, PC, or server to the SAN. The Add Discovery Entry dialog box pops up for you to enter the IP address.

  • Page 72: User Interface Preferences

    SnapSAN S2000 User Guide User Interface Preferences The Windows SnapSAN Manager user interface can be configured to ask for confirmation before carrying out irreversible actions, such as destroying storage pools or shutting down storage appliances. In the SnapSAN Network window, select the Preferences view from the Categories list to set your preferences.

  • Page 73: About

    SnapSAN S2000 User Guide About The About view displays the version of the Windows SnapSAN Manager and includes a link to the SnapSAN appliance support web site. In the SnapSAN Network window, select the About view from the Categories list 10400277-004 07/2011 ©2010-11 Overland Storage, Inc.

  • Page 74: Chapter 7 - Appliance Management

    Identification & Services Category • Initiators Category • Notification Category • Statistics Category Overview To manage a SnapSAN S2000 appliance, select Appliances from the Other Places list. From the Appliances view, highlight a SnapSAN S2000. 10400277-004 07/2011 ©2010-11 Overland Storage, Inc.
  • Page 75 SnapSAN S2000 User Guide If the appliance is locked (black and with a padlock on its icon), select Login to Appliance from the Appliances list. Enter the password for the appliance in the window that pops up. NOTE: If a Warning icon appears with the appliance icon ( ), go to the “Events Category”...

  • Page 76: Hard Disks Category

    SnapSAN S2000 User Guide • Identification & Services Category– Configuring the domain name and password of an appliance and the services that the appliance uses is carried out using the Identification & Services view. • Initiators Category – Management of the initiators recognized by an appliance is carried out using the Initiators view.

  • Page 77: Snapsan Pools Category

    A global hot spare will automatically replace an equivalent failed disk in a pool that shares the same subsystem as the hot spare. See “Manage a SnapSAN S2000 Pool” on page 7-6. SnapSAN Pools Category Before you can create any iSCSI volumes, you must create one or more storage pools from which the volumes can be allocated.
  • Page 78 Categories list on the Appliance Properties page. The existing pools are displayed. Select a SAN pool to see basic information about it in the Details list on the left. You can perform the following tasks on a pool using the entries in the SnapSAN S2000 Pools list: •...

  • Page 79: Manage A Snapsan S2000 Pool

    SnapSAN S2000 User Guide Manage a SnapSAN S2000 Pool To manage a pool, select the pool and then double-click the icon (or select Manage SnapSAN Pool from the SnapSAN Pools tasks list). This displays the Properties view of the pool.

  • Page 80: Extend A Snapsan Pool

    SnapSAN S2000 User Guide To manage the devices in the pool, select the Devices view. The Devices view displays all the disk drives which make up the pool together with their state. The state of each device should be Online unless a disk has failed, in which case the disk should be removed and replaced.

  • Page 81: Create A Snapsan Pool

    7-19. Create a SnapSAN Pool NOTE: Having enough available disk space (free disks) is a prerequisite to performing creating a new pool. The following types of SnapSAN pools are supported on the SnapSAN S2000: Type Description Number of Disks RAID 0...
  • Page 82 • Name – The name of the pool can be anything you like, up to 32 alphanumeric characters in length. It cannot be blank. • Subsystem – Select the hardware RAID controller. Since the SnapSAN S2000 only has one, it is pre-selected.

  • Page 83: Snapsan Targets Category

    When the pool has completed initialization, the pool state, shown in the Details list, is set to Normal. SnapSAN Targets Category The SnapSAN S2000 provides storage to host computers in the form of iSCSI volumes. An iSCSI volume appears to the host computer just like a regular disk drive but with several important differences: •...

  • Page 84: Managing A Snapsan Target

    SnapSAN S2000 User Guide You can perform the following tasks on a target using the entries in the SnapSAN Targets list: • Managing A SnapSAN Target (see page 7-11) • Destroying A SnapSAN Target (see page 7-19) • Creating A SnapSAN Target...

  • Page 85: Security Category

    SnapSAN S2000 User Guide • Size – The size of the target volume. • Pool – The storage pool from which the target was created. • Unique ID – A worldwide, unique indentifier (called an EUI64 indentifier). This is sometimes used by host-based storage applications, such as multipathing software.
  • Page 86 SnapSAN S2000 User Guide Select the initiator you want to add from the drop-down list labeled IQN. The list shows the IQNs of all the initiators known to the appliance. If the initiator you want to add is not listed, you can add it using the Initiators view (see “Initiators Category”...

  • Page 87: Portals

    SnapSAN S2000 User Guide Portals The Portals view enables you to deny access to the target through one or more of the target’s interfaces and to group interfaces together. To do this, select an interface in the view and then click the Edit button (or select Edit Target Portal from the SnapSAN Target Tasks list).

  • Page 88: Statistics

    SnapSAN S2000 User Guide Check the box to enable portal groups for the interface and enter a group number and click OK. By default, a group number of 1 is used. Group numbers range from 0 to 65535. If the portal group is enabled, uncheck the box to disable it.
  • Page 89 SnapSAN S2000 User Guide Click the Configure button (or select Configure Statistics from the SnapSAN Target Tasks list) to set up the graph. The Configure Target Statistics dialog box pops up. Select between statistics showing total throughput and those showing a count of read/write operations, together with the time period for which you would like to see the statistics.

  • Page 90: Replication

    SnapSAN S2000 Replicas view of PCs and Servers if it has a Windows letter associated with it, showing that it has been mounted as a Windows drive (see “Creating A SnapSAN Target”...

  • Page 91: Mirroring A Target

    SnapSAN S2000 User Guide • Manage Replica Appliance This displays the Properties view of the replica. • Destroy Replica Appliance This deletes all the replicated data on this replica and stops data being replicated to it. Other replicas, created using Add Replica Destination, are not affected.

  • Page 92: Destroying A Snapsan Target

    SnapSAN S2000 User Guide When either the target or Leader Plex is highlighted, the Add Plex option is shown in the SnapSAN Target Tasks list. It opens a dialog box that lets you choose the Appliance and pool where you want to create the plex.

  • Page 93: Creating A Snapsan Target

    SnapSAN S2000 User Guide Creating A SnapSAN Target To create a target, select Create SnapSAN Target from the SnapSAN Targets tasks list. This pops up the Target Create dialog box which lists the pools that have free capacity. 10400277-004 07/2011 7-20 ©2010-11 Overland Storage, Inc.
  • Page 94 SnapSAN S2000 User Guide Check the box for a pool that has sufficient free capacity, then press Next. In the next dialog box enter the following details: • Name – This can be a name of your choosing, up to 32 alphanumeric characters in length.

  • Page 95: Extending A Snapsan Target

    SnapSAN S2000 User Guide When you click Next, the target details are displayed. Click Finish to create the target. The target is not automatically assigned a Windows drive letter so it can be used by hosts on the SAN that are not running a Windows operating system (for example, a Linux host).

  • Page 96: Snapsan Replicas Category

    SnapSAN S2000 User Guide SnapSAN Replicas Category Windows SnapSAN Manager provides support for replicating Storage Disks (volumes). The SnapSAN Replica view enables you to manage replicas created at the PCs and Servers level and at this Appliance level. 10400277-004 07/2011 7-23 ©2010-11 Overland Storage, Inc.

  • Page 97: Manage Snapsan Replica

    SnapSAN S2000 User Guide The SnapSAN Replica tasks list has three tasks (select a replica in the content area to see the Manage and Destroy options): • Manage SnapSAN Replica (see page 7-24) • Create SnapSAN Replica (see page 7-26) •...
  • Page 98 SnapSAN S2000 User Guide While still on the SnapSAN Replica screen, select Recovery Point Target Mappings from the Categories list to view all the mappings that have been made from recovery points. Select a mapping and the tasks that you can carry out on it are displayed in the SnapSAN Replica Tasks list: •...

  • Page 99: Create Snapsan Replica

    SnapSAN S2000 User Guide Create SnapSAN Replica IMPORTANT: To enable replication, a Replication Journal must be configured using the Web Management Interface. See “Storage Journal Configuration” on page 8-52. Select Create SnapSAN Replica from the SnapSAN Replica tasks list to create a replica.

  • Page 100: Destroy Snapsan Replica

    SnapSAN S2000 User Guide Destroy SnapSAN Replica To destroy a replica, select it and then select Destroy SnapSAN Replica from the SnapSAN Replica tasks list. The Confirm SnapSAN Target Destroy dialog box appears for confirmation before destroying the replica. You must check the agreement box to activate the Yes button.

  • Page 101: Network Category

    SnapSAN S2000 User Guide Network Category The Network view, the default Network Connection View has controls for administering the network. Three views of the network are provided in the Categories list: • Network Connections Category • DNS Category (see page 7-32) •...
  • Page 102 SnapSAN S2000 User Guide Properties Category The Properties category of the interface shows the device type and its connection status. To add an IP address to the device, click the Add button (or select Add IP Address from the Network Connection Tasks list). This displays the Add IP Address dialog box.

  • Page 103: Advanced Category

    SnapSAN S2000 User Guide Advanced Category The Advanced view of the interface shows the current frame size (MTU) and transmit queue length (TXQLEN) parameters. You can change these settings, especially to increase the MTU size for jumbo frames. Click the Change button (or select Change IP Transmission Properties option from the Network Connection Tasks list) to change the settings.

  • Page 104: Statistics Category

    SnapSAN S2000 User Guide Statistics Category The Statistics view of the network connection shows the transmission statistics for the interface. Click the Refresh button (or select the Refresh Statistics option in the Network Connection Tasks list) to update the data.

  • Page 105: Dns Category

    SnapSAN S2000 User Guide DNS Category The DNS view enables a network administrator to modify domain name server entries. The panel at the top of the view is for user-defined entries; the panel below it shows entries that have been obtained automatically by DHCP.

  • Page 106: Routing Category

    SnapSAN S2000 User Guide To change an IP address, highlight the address in the list and click the Edit button (or select Edit DNS Entry in the Network Tasks list). To remove an IP address, highlight the address in the list and click the Remove button (or select Remove DNS Entry in the Network Tasks list).

  • Page 107: Properties Category

    SnapSAN S2000 User Guide To add a new route, click the Add button (or select Add Network Route from the Network Tasks list). The Add Route dialog box pops up for you to select an interface and then enter destination, netmask and gateway addresses for the new route. There is also a check box for making this gateway the default.
  • Page 108 SnapSAN S2000 User Guide • Hostname of the appliance • Management IP address • System State (current) Normally the system status will be set to OK. However, if a Warning or Error event occurs, the status will be reset to Warning or Error. To find out what caused the change of state, go to the Events view (see “Events Category”...

  • Page 109: Hardware Monitoring Category

    SnapSAN S2000 User Guide • Evaluation – This option enables you to go ahead and evaluate the appliance without entering the license key. Once the evaluation period of 28 days has expired, the system reverts to being unlicensed. This means that no support is available to you although the system will continue to operate.

  • Page 110: Events Category

    SnapSAN S2000 User Guide Events Category Windows SnapSAN Manager records significant events and errors that occur on a storage appliance. To see these records, select the Events view to view the log. Administrators can be notified when events occur using the notification mechanism described in “Notification Category”...

  • Page 111: Identification & Services Category

    The Events view will have the last event of that type already selected in the list. Double-click the alert icon to launch the Event Viewer. IMPORTANT: If requested by Overland Storage Support, use the Download Appliance Diagnostics link to access the TBZ file.
  • Page 112 SnapSAN S2000 User Guide • Security To change the password, click the Change button (or select Change Password from the Appliance Tasks list). The Change Password dialog box pops up for you to enter and confirm the new password. • NTP The Network Time Protocol (NTP) server is used to synchronize system time.

  • Page 113: Initiators Category

    SnapSAN S2000 User Guide Initiators Category The Initiators view displays a list of the IQNs of all the host iSCSI initiators known to the appliance that can be added to the Access Control List to allow access to a target.

  • Page 114: Notification Category

    SnapSAN S2000 User Guide Notification Category When events (see “Events Category” on page 7-37) occur on the appliance, support engineers can be notified of the events via email . The Notification view has controls for configuring these notifications. If the SMTP server settings are not yet configured, click the Configure button (or select Configure Email Settings from the Appliance Tasks list).
  • Page 115 SnapSAN S2000 User Guide Once configured, to change the settings, click the Change button (or select Configure Email Settings from the Appliance Tasks list). If desired, emails can be sent to multiple recipients and each recipient can be configured to receive only emails for events at or above a certain severity level. For example, you could set up one email account as a ‘log’...

  • Page 116: Statistics Category

    SnapSAN S2000 User Guide Statistics Category The Statistics view enables you to compare volumes on the appliance and see how heavily they are being used. To configure the display, click the Configure button (or select Configure Statistics from the Appliance Tasks list). The Configure Statistics dialog box pops up. Select a target, the type of data and a time interval.

  • Page 117: Chapter 8 - Web Management Interface

    Web Management Interface CHAPTER The Web Management Interface enables you to manage SnapSAN S2000 appliances individually using a standard web browser. This chapter describes the Web Management Interface in detail. It is organized as follows: • Accessing the Web Management Interface •...

  • Page 118: Overview And Usage

    SnapSAN S2000 User Guide When the password has been verified, the appliance’s Home Page is displayed. Navigation (Tab Bar) Content Area (with Hot Links) Action Hot Links Overview and Usage The Web Management Interface is made up of a number of cross-linked pages, enabling you to perform management operations easily on your iSCSI storage.

  • Page 119: Home Tab

    SnapSAN S2000 User Guide The primary Contents Area of each page contains details specific to the selected management area. Many of the items shown in this area are links (light blue text) to pages which show more details about the item. For example, clicking a target’s name...

  • Page 120: System Information

    SnapSAN S2000 User Guide System Information The default System Information page shows system details, including the firmware version and information about the main hardware components of the appliance. Content Area Links There are no Content Area hot links on the System Information page.

  • Page 121: System Tab Subpages

    The following pages are also available under the System tab either directly through action items or indirectly from text links in the Content Area. System Configuration Use this page to download or restore your SnapSAN S2000 configuration. It is accessed by clicking the Backup Config action item on the System Information page.

  • Page 122: System Firmware Upgrade

    SnapSAN S2000 User Guide System Firmware Upgrade Use this page to update to the latest firmware. This page is accessed by clicking the Upgrade Firmware action item on the System Information page. Use the Browse button to select the firmware upgrade file.

  • Page 123: System Power Settings

    SnapSAN S2000 User Guide By clicking the Configure Monitoring action item on the Hardware Sensors Information page, the fan speed monitoring becomes configurable and the checkboxes can be changed to activate/deactivate the monitoring of a particular fan. By selecting/deselecting the Hardware Monitoring Enabled checkbox at the top, fan monitoring can be turned on/off for the entire appliance.

  • Page 124: System Diagnostics

    SnapSAN S2000 User Guide System Diagnostics This page provides access to diagnostic information that might be required by the Overland technical support team to troubleshoot a problem. It is accessed by clicking the Get a Diagnostic Dump action item on the System Information page.

  • Page 125: Set System Date & Time

    System Information page. Click the User Local Time button to align the SnapSAN S2000 with the time zone on your local computer. Otherwise, manually set the date and time then click Apply. Click the Show/Hide Calendar button to alternately display and hide the calendar.

  • Page 126: System License

    License Key action item on the System Information page. If your SnapSAN S2000 has Internet access, you can use the Online Feature Activation option. Otherwise, you need to contact the vendor from which you purchased this SnapSAN S2000 and obtain a special activation code.

  • Page 127: Secure Authentication Certificate

    SnapSAN S2000 User Guide Secure Authentication Certificate Use this page to download a secure Authentication Certificate for your browser. It is accessed by clicking the Authentication Certificate action item on the System Information page. Click the blue “Click here” text in the Content Area to download the certificate.

  • Page 128: Network Information

    • Domain – used by DNS when looking up an IP address. • SAN Name – a name on which filtering can be performed to prevent automatic discovery of appliances from occurring. SnapSAN S2000 appliances can be grouped together under SAN Names.

  • Page 129: Actions Available

    Network Information page: • Configure Discovery – launches the Discovery page that shows all the SnapSAN S2000 appliances and managed servers on the network. • Create Interface – launches the Create Network Interface page to create a new logical interface.

  • Page 130: Discovery

    SnapSAN S2000 User Guide Discovery This page lists all the SnapSAN S2000 appliances along with any managed servers on the network. It is accessed by clicking the Configure Discovery action item on the Network Information page. The two action items on this page enable you to add a static entry to the list by...
  • Page 131 SnapSAN S2000 User Guide Add Static Discovery Entry. Use this page to add a static IP address for discovery so the associated appliance can be added to the SAN Discovery table. It is accessed by clicking the Add Static Entry action item on the Discovery page.

  • Page 132: Network Device Information

    SnapSAN S2000 User Guide Network Device Information This page shows device information and traffic statistics. It provides link to edit the MTU and TXQLEN parameters. The page is accessed by clicking a networked device MAC address on the Network Information,...
  • Page 133 SnapSAN S2000 User Guide Edit Network Device Using this page enables you to edit the frame size (MTU) and transmit queue length (TXQLEN). It is accessed by clicking the Edit action item on the Network Device Information page. Network Interface Information This page shows details of the logical interface and also the physical interface to which it is assigned.

  • Page 134: Create Network Interface

    SnapSAN S2000 User Guide The bottom section of the page lists the targets which are using this interface. Each logical interface can be defined as being either for iSCSI or for management traffic or both (enabling you to put your iSCSI storage on a separate network from your main network).
  • Page 135 SnapSAN S2000 User Guide Edit Network Interface This page lets you edit your network interface parameters. The page is accessed by clicking the Edit action item on the Network Interface Information page. With the Network Device selected in the drop-down list, you can change the user-...

  • Page 136: Delete Network Interface

    SnapSAN S2000 User Guide Delete Network Interface Use this page to delete a specific network interface. The page is accessed by clicking the Delete action on the Network Interface Information page. Content area embedded links include clicking a route name to view the...

  • Page 137: Create Network Route

    SnapSAN S2000 User Guide Create Network Route Use this page to create a new network route associated with an interface. The page is accessed by clicking the Create Route action on the Network Information page. Network routing tables are used to direct network traffic from a source to their ultimate destination network.

  • Page 138: Network Ping

    SnapSAN S2000 User Guide For example, click Edit Hostname to display the Edit Hostname page where you can change the name of the host. Network Ping Use this page to run the network utility to test whether a host can be reached by an appliance.
  • Page 139 SnapSAN S2000 User Guide Network Traceroute Use this page to run the network tool to verify the route and measure the delays across the network to the host. The page is accessed by clicking the Traceroute action item on Network Information page.

  • Page 140: Targets Tab

    SnapSAN S2000 User Guide Targets Tab The Target tab provides access to manage the targets on the network. The default page is the Targets page. Targets This overview page is the default page for the Targets tab and displays a list of targets along with initiators and active sessions related to those targets.

  • Page 141: Actions Available

    SnapSAN S2000 User Guide The Sessions section lists all the iSCSI sessions currently active on the appliance. A session is a connection between a host initiator and a target volume. For each active session, the target’s alias name and the initiator’s IQN are listed.

  • Page 142: Target Edit

    This action is only available if a replicant has been added to provide storage for the replica. • Add/Break Mirror Plex – If two SnapSAN S2000 appliances are licensed for mirroring and on the same network, this link can be used to set up a mirrored pair.
  • Page 143 SnapSAN S2000 User Guide Target Edit This page enables you to edit a target. You can alter the authentication type, which can be CHAP or none. The page is accessed by clicking the Edit Target action item on Target Information page.

  • Page 144: Extend Target

    SnapSAN S2000 User Guide To set the CHAP secret: 1. Select the target name in the Content Area of the Targets page to open the Target Information page. 2. Click the Add ACL Entry action item to bring up the Add ACL Entry to Target page and enter the name of a new Initiator (or select an existing initiator).

  • Page 145: Target Delete

    SnapSAN S2000 User Guide Target Delete This page enables you to delete a target. It is accessed by clicking the Delete Target action item on the Target Information page. NOTE: All replicants must be removed and plexs broken before a target can be deleted.

  • Page 146: Add Acl Entry To Target

    SnapSAN S2000 User Guide Add ACL Entry to Target This page enables you to add a new entry to the ACL table. It is accessed by clicking the Add ACL Entry action item on the Target Information page. Either enter a New initiator name in the Initiator IQN field or select an Existing initiator, select the type of Access, and click Apply to create a new ACL entry.

  • Page 147: Remove Target Acl Entry

    SnapSAN S2000 User Guide • Remove ACL Entry – Removes this ACL entry using the Remove Target ACL Entry page. Edit Target ACL Entry This page is used to edit the CHAP secret for the target and initiator of a ACL entry.

  • Page 148: Create Target

    SnapSAN S2000 User Guide Create Target This page is for creating new iSCSI targets. It is accessed by clicking the Create Target action item on the Targets default page. To create a target, enter the following information: • Target Name – Choose a convenient name for the target, up to 32 alphanumeric characters in length.

  • Page 149: Add Initiator To Target

    SnapSAN S2000 User Guide • Create as Mirror Plex – Check this box if the target volume is to be part of a mirror plex. • 2 TB Limit for ESX – Check this box if you are using VMware ESX and need to limit the size of the datastore creation to 2 TB.

  • Page 150: Target Initiator View

    SnapSAN S2000 User Guide Target Initiator View This page shows the details for an initiator. The page is accessed by clicking the initiator name in the Content Area of the Targets default page, Target ACL Entry page, or Target Information page (if shown there).

  • Page 151: Create Snapshot Target

    SnapSAN S2000 User Guide After all ACL entries are removed from the initiator, click Yes on the Remove Initiator page to remove the initiator. The Targets default page is then displayed. Create Snapshot Target This page enables you to take a snapshot of the target. It is accessed by clicking the...

  • Page 152: Add Replicant Host To Target

    SnapSAN S2000 User Guide IMPORTANT: The data on the target must be in a consistent state when the snapshot is taken. For this reason, all the initiators must be logged out or the file systems on the target dismounted. Enter the following information: •...
  • Page 153 SnapSAN S2000 User Guide Enter the following details: • Replicant Host – Enter the name of the remote host on which the replica will be stored. This is the Hostname found on the Network Information screen. • Paused – Check this box to pause the replicant creation.

  • Page 154: Target Replicant Host Information

    SnapSAN S2000 User Guide Target Replicant Host Information This page provides the basic facts concerning a replica. It is accessed by clicking the replicant hostname in the Content Area on the Target Information page. There are two links in the Content Area (light blue text): •...

  • Page 155: Edit Replicant Host Details

    SnapSAN S2000 User Guide Edit Replicant Host Details This page enables you to edit the replicant host including using compression. It is accessed by clicking the Edit action item on the Target Replicant Host Information page. There are three configurable items: •...

  • Page 156: Remove Replicant Host From Target

    Add Mirror Plex to Target NOTE: MPIO and the optional mirroring license are required for mirroring. This page enables you to create a mirror plex between two SnapSAN S2000 appliances licensed for mirroring. The page is accessed by clicking the Add Mirror Plex action...

  • Page 157: Plex Information

    SnapSAN S2000 User Guide There are two configurable items: • Mirror Access Policy – Select the type of mirror access to be used: • ESX (VMware) – VMware ESX 3.5 policy • Windows – Standard Windows mirror access policy • Asymmetric Logical Unit Access – VMware ESX 4.0+ policy •...

  • Page 158: Remove Mirror Plex

    SnapSAN S2000 User Guide Promote to Management Plex (Destination only) – Promote a plex to be the management plex (Mirror Leader Plex). Can only be issued if all plexes are online. The Change (Promote to) Management Plex page is displayed.

  • Page 159: Break Mirror Plex

    SnapSAN S2000 User Guide Change (Promote to) Management Plex This page enables you to change the management plex from the local appliance (which owns the management plex by default) to the remote appliance. It is accessed by clicking the Promote to Management Plex action item on the...

  • Page 160: Create Target Recovery Point

    SnapSAN S2000 User Guide Create Target Recovery Point This page enables you to create a recovery point from which the data on the replicated target can be restored. The page is accessed by clicking Create Recovery Point action item (only shown when a replicant exists) on the Target Information page.

  • Page 161: Create Target On

    SnapSAN S2000 User Guide Create Target on <Pool_name> This page is used to create a target on a pre-specified pool. It is accessed from the Pool Information page (Storage Pools page > click a pool name) by clicking the Create Target on <Pool_name>...

  • Page 162: Pools Tab

    Click for Alarm Settings Content Sections and Links With the SnapSAN S2000, only one RAID subsystem is present. the Storage Pools page groups pools by their RAID subsystem so it groups all the pools together: • Subsystem: <Subsys_name> – Clicking the subsystem name at the top of the...

  • Page 163: Actions Available

    SnapSAN S2000 User Guide • Pools – The table shows the pool name, RAID level, stripe size, current state, disk size, and free space. Click a name to view its Pool Information page. • Global Hot Spares – This table shows the name of the drive the hot spare is on, its size, drive model, and revision.

  • Page 164: Other Network Tab Subpages

    SnapSAN S2000 User Guide Other Network Tab Subpages The following pages are also available under the Network tab: Subsystem Information This page enables you to enable, disable, and silence alarms, check battery status, and refresh the storage space. It is accessed by clicking the subsystem name at the top of Storage Pools page.

  • Page 165: Pool Information

    SnapSAN S2000 User Guide Pool Information This page displays information about a single pool. The page is accessed by clicking a pool name on the Storage Pools, Device Information, Target Information, Target Edit, Create Snapshot Target, Storage Journal Configuration, Targets,...

  • Page 166: Create Storage Pool

    SnapSAN S2000 User Guide Action items available on this page: • Create Target On <Pool_name> – Launches the Create Target on <Pool_name> page to create a target. Works the same way as the Create Target page but limited to a single, pre-selected pool.

  • Page 167: Add Global Hot Spare

    SnapSAN S2000 User Guide RAID Level Number of Disks RAID 0 Minimum of 2 RAID 1 Exactly 2 RAID 5 Minimum of 3 RAID 6 Minimum of 4 RAID 10 Minimum of 4 RAID 50 Minimum of 6 RAID 60...

  • Page 168: Remove Global Hot Spare

    The journal is used to temporarily log changes to all the replicated volumes. For optimum performance, put the journal on a dedicated device such as the dedicated drive that comes with the SnapSAN S2000. The page is accessed by clicking the Set Storage Journal action item on the...
  • Page 169 SnapSAN S2000 User Guide Dedicated Disk Drive (Journal Drive) To configure a replication journal, select the drive from the list of available devices and choose which pool can use it. Click Add to save the settings. Clicking a device name opens the...

  • Page 170: Set Neutral Storage Host

    SnapSAN S2000 User Guide Set Neutral Storage Host Use this page to select the host that is to be used as a neutral storage site for mirroring (optional feature) which is required to arbitrate the correct state of a mirror, should one of the plexes suffer from a failure.

  • Page 171: Subsystem Rescan

    SnapSAN S2000 User Guide Subsystem Rescan This page enables you to rescan the subsystem to discover new devices. This page is accessed by clicking the Rescan Subsystems action item on the Storage Pools page. Delete Storage Pool This page enables you to clear a storage pool drive allocations. It is accessed by...

  • Page 172: Extend Pool

    SnapSAN S2000 User Guide Extend Pool This page provides a way to extend a pool by linking other devices. It is accessed by clicking the Extend Pool action item on the Storage Pools page. Clicking a device name opens the Device Information page.

  • Page 173: Pool Markers

    SnapSAN S2000 User Guide Once enabled, the same page view is used to disable the cache. Pool Markers This page allows you to configure pool capacity markers by type (Informational, Warning, or Error) and percentage of drive capacity used to activate the alert. Each pool can have up to 10 markers.

  • Page 174: Devices

    SnapSAN S2000 User Guide Devices The Devices page lists the disk devices present in the appliance. Content Sections and Links The following links (light blue text) are available on the Devices Content Area: • Subsystem Name – Opens the Subsystem Information page.

  • Page 175: Other Device Tab Subpages

    SnapSAN S2000 User Guide Other Device Tab Subpages The following page is also available under the Devices tab. Device Information This page displays the basic information about a specific disk drive. It is accessed by clicking a device name on the...

  • Page 176: Events

    SnapSAN S2000 User Guide Events The Events page displays the log of events showing 15 events on each page of the log. You can navigate between the pages using the Start, Back, Next, and End buttons at the bottom of each page.

  • Page 177: Actions Available

    SnapSAN S2000 User Guide Actions Available The following action items are available on the Events page: • Clear Events – This launches the Clear Events page to clear the event log by deleting all the old events. A new Informational event is generated to indicate that the event log has been cleared.

  • Page 178: Event Notification Setup

    SnapSAN S2000 User Guide Once a user is added, there are two Content Area links available: • Edit – This returns you to the Event Notification Setup page to edit your settings. • Delete – Opens the Remove Event Notification page to delete the selected user.
  • Page 179 SnapSAN S2000 User Guide • Sender – A full email address to be used as the From address of the notification email. • Connect Using SSL – Check if the SMTP server requires the use of SSL. • Server Requires Authentication – Check if the SMTP server requires authentication.

  • Page 180: Test Event Notification

    SnapSAN S2000 User Guide Remove Event Notification Use this page to remove a user’s email address from the notification list. The page is accessed by clicking Delete under Modify Notification in the Content Area of the Event Notification page. Test Event Notification This page is used to test the configuration for event notifications.

  • Page 181: Clear System Status

    SnapSAN S2000 User Guide Clear System Status This page is used to clear the current system status and return it to OK without purging the Events log. The page is accessed by clicking the Clear System Status action item on the Events page.

  • Page 182: Content Sections And Links

    SnapSAN S2000 User Guide The Replicant Settings section of the page shows the following information: • Restrict by ACL – When selected, the ACL is used to determine which initiators may access the storage. • Manual Import – Causes data transfer to take place from an external drive, such as a USB drive, rather than over the network (see also “Target...

  • Page 183: Replicant Settings

    SnapSAN S2000 User Guide Replicant Settings This page is used to set up or edit the replicant options. It is accessed by clicking the Edit Settings action item on the Replicant Information page. Add ACL Entry to Replicant This page is used to add an entry to the ACL. It is accessed by clicking the Add...

  • Page 184: Create Replicant Volume

    SnapSAN S2000 User Guide Create Replicant Volume This page is used to set up a new replicant volume. The page is accessed by clicking the Add Replicant Volume action item on the Replicant Information page. Enter the following: • Replicator Host – The IP address or domain name of the replicant host. This is a remote destination where replicas are stored for future recovery.

  • Page 185: Replicant Volume Information

    SnapSAN S2000 User Guide Replicant Volume Information Use this page to configure the replicant volume, check its status, and create mapped targets from recovery points. The page is accessed by clicking a replicant volume name (IQN) in the Content Area on the Replicant Information page.

  • Page 186: Recovery Point Information

    SnapSAN S2000 User Guide The Mapped Targets section shows the name, time stamp, and size of any mapped targets created from a recovery point. Click the Replica field (light blue text) of a mapped target to open the Recovery Point Information...
  • Page 187 SnapSAN S2000 User Guide The following information about the replicant volume is displayed: • Host – The name of the replicant host. • Serial – The serial number of the appliance acting as the replicant host. • Original Target IQN – The IQN of the target being replicated.

  • Page 188: Delete Replica Volume

    SnapSAN S2000 User Guide Delete Replica Volume This page is used to remove a replicant volume. It is accessed by clicking the Remove Replicant action item on the Replicant Volume Information page. Recovery Point Target Mapping This page shows a calendar view of all the recovery points that have been made for a replicated target.

  • Page 189: Edit Replicant Acl Entry

    SnapSAN S2000 User Guide • Target Name – Enter an alphanumeric name for the new mapped target. • Initiator IQN – Enter the IQN of the initiator that will connect to the mapped target or select one from the drop-down list.

  • Page 190: Replicant Acl Entry

    SnapSAN S2000 User Guide Replicant ACL Entry This page is displays the basic information about a replicant ACL entry. It is accessed by clicking the Hostname in the Replicant ACL table on the Replicant Information page. There are two action items on this page: •...

  • Page 191: Chapter A - Snapserver Manager

    SnapServer Manager (SSM) is a administrative application that is Java-based, platform- independent, and runs on all major platforms. SSM provides a single interface from which administrators can discover SnapSAN S2000 appliances on the network and launch their Web Management Interface software. A link to the latest software can be found at: http://docs.overlandstorage.com/snapsan...

  • Page 192: Snapsan S2000 Discovery

    SnapSAN S2000 Discovery To enable a SnapSAN S2000 appliance to be discovered, you must always enter it manually into the SSM database by choosing Edit > Remote Servers > Add to add the IP address to the list.

  • Page 193: Chapter B - Expanding Capacity

    ON theSnapSAN S2000 head unit. SAS Connections 3. Power ON the head unit. Wait while the system reboots. 4. If additional expansion arrays are being added, repeat Steps 1–3. 10400277-004 07/2011 ©2010-11 Overland Storage, Inc.

  • Page 194: Chapter C - Licenses & Copyright

    Licenses & Copyright APPENDIX The SnapSAN S2000 appliance includes a number of open source third-party software packages. This appendix includes copyright notices and details of the licenses under which the packages are released. The source code of all the open source packages included in the appliance is available on written request.
  • Page 195 SnapSAN S2000 User Guide know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author’s protection and ours, we want to make certain that everyone understands that there is no warranty for this free software.
  • Page 196 SnapSAN S2000 User Guide (Exception: if the Program itself is interactive but does not normally print such an announcement, your work based on the Program is not required to print an announcement.) These requirements apply to the modified work as a whole. If...
  • Page 197 SnapSAN S2000 User Guide You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License.
  • Page 198 SnapSAN S2000 User Guide 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation;...

  • Page 199: Lesser Gpl

    SnapSAN S2000 User Guide You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St., Fifth Floor, Boston, MA 02110-1301 USA Also add information on how to contact you by electronic and paper mail.
  • Page 200 SnapSAN S2000 User Guide When we speak of free software, we are referring to freedom of use, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish); that you receive source code or can get it if you want it;...
  • Page 201 SnapSAN S2000 User Guide In other cases, permission to use a particular library in non-free programs enables a greater number of people to use a large body of free software. For example, permission to use the GNU C Library in non-free programs enables many more people to use the whole GNU operating system, as well as its variant, the GNU/Linux operating system.
  • Page 202 SnapSAN S2000 User Guide You must cause the whole of the work to be licensed at no charge to all third parties under the terms of this License. If a facility in the modified Library refers to a function or a table of data to be supplied...
  • Page 203 SnapSAN S2000 User Guide However, linking a “work that uses the Library” with the Library creates an executable that is a derivative of the Library (because it contains portions of the Library), rather than a “work that uses the library”. The executable is therefore covered by this License.
  • Page 204 SnapSAN S2000 User Guide For an executable, the required form of the “work that uses the Library” must include any data and utility programs needed for reproducing the executable from it. However, as a special exception, the materials to be distributed need not include...
  • Page 205 SnapSAN S2000 User Guide If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to apply, and the section as a whole is intended to apply in other circumstances.

  • Page 206: Copyright Notices And Licenses

    SnapSAN S2000 User Guide INABILITY TO USE THE LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
  • Page 207 SnapSAN S2000 User Guide The expat module: Copyright (c) 1998, 1999, 2000 Thai Open Source Software Center Ltd and Clark Cooper Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006 Expat maintainers. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction,...
  • Page 208 SnapSAN S2000 User Guide the very least. This license was inspired by the BSD, Artistic, and IJG (Independent JPEG Group) licenses, which all encourage inclusion and use of free software in commercial and freeware products alike. As a consequence, its main points are that: We don’t promise that this software works.
  • Page 209 SnapSAN S2000 User Guide THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR...
  • Page 210 SnapSAN S2000 User Guide The following copyright notice applies to all files collectively called the Network Time Protocol Version 4 Distribution. Unless specifically declared otherwise in an individual file, this notice applies as if the text was explicitly included in the file.
  • Page 211 SnapSAN S2000 User Guide same terms as the software itself. Written by: Philip Hazel <ph10@cam.ac.uk> University of Cambridge Computing Service, Cambridge, England. Phone: +44 1223 334714. Copyright (c) 1997-2004 University of Cambridge All rights reserved. Redistribution and use in source and binary forms, with or without modification, are...
  • Page 212 SnapSAN S2000 User Guide ****************************************** SWIG is distributed under the following terms: I. Copyright (c) 1995-1998 The University of Utah and the Regents of the University of California All Rights Reserved Permission is hereby granted, without written agreement and without license or royalty fees, to use, copy, modify, and distribute this...
  • Page 213 SnapSAN S2000 User Guide that (1) The above copyright notice and the following two paragraphs appear in all copies of the source code and (2) redistributions including binaries reproduces these notices in the supporting documentation. Substantial modifications to this software may be copyrighted by their authors and need not follow the licensing terms described here, provided that the new terms are clearly indicated in all files where they apply.
  • Page 214 SnapSAN S2000 User Guide Nothing in this License Agreement shall be deemed to create any relationship of agency, partnership, or joint venture between PSF and Licensee. This License Agreement does not grant permission to use PSF trademarks or trade name in a trademark sense to endorse or promote products or services of Licensee, or any third party.
  • Page 215 SnapSAN S2000 User Guide This LICENSE AGREEMENT is between the Corporation for National Research Initiatives, having an office at 1895 Preston White Drive, Reston, VA 20191 (“CNRI”), and the Individual or Organization (“Licensee”) accessing and otherwise using Python 1.6.1 software in source or binary form and its associated documentation.
  • Page 216 SnapSAN S2000 User Guide modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in...

  • Page 217: Appendix D - Vmware Plug-In

    7. When the installation is complete, click Next. 8. At the completion window, click Finish to exit. Install VMware Plug-in 1. Launch vSphere Client. 2. Go to Plug-ins > Manage Plug-ins. 3. Under the Available Plug-ins, locate the SnapSAN Manager Suite. 10400277-004 07/2011 ©2010-11 Overland Storage, Inc.

  • Page 218: Create Datastore

    SnapSAN S2000 User Guide 4. Locate and click the blue link Download and Install on the SnapSAN Manager Suite line. 5. When installed, locate the plug-in and click the Disabled link. 6. Change the status to Enabled and close. Create Datastore 1.

  • Page 219: Appendix E - Vss Hardware Provider

    “provider” that enables VSS to be used with their storage device. The Overland Hardware Provider for VSS (called the VSS provider), enables the Microsoft VSS to be used with Overland storage arrays. Theory of Operation When setting up a system that makes use of the snapshot feature, you must create two separate arrays.

  • Page 220: Installation

    SnapSAN S2000 User Guide Installation System Requirements Use of the Overland Hardware Provider for VSS requires the following: Hardware Requirements • Overland storage array • Host Bus Adapter (HBA) • A direct connection from the HBA to the storage array Operating System Requirements •...

  • Page 221: Uninstallation

    8. Create logical drives on the partitions. Make sure drive letters are assigned and the drives are formatted with the NTFS file system. You can now create snapshots on the Windows drives located on the Overland storage array using the VSS provider.

  • Page 222: Creating A Snapshot

    SnapSAN S2000 User Guide Creating a Snapshot To issue a simple snapshot, type the following command: vshadow -p <Drive Letter> Where: –p – Creates a persistent snapshot which can be viewed. <Drive Letter> – The Windows label for a drive located on the storage array.

  • Page 223: Storage Array Logical Drives Versus Windows Volumes

    Windows. Windows volumes are created using some or all of the space taken up by a logical drive. This can be a problem if using VSS and an Overland storage array together: Storage Array •...

  • Page 224: Use Of Vss Tools

    SnapSAN S2000 User Guide • The logical drive has snapshot enabled, which means both D: and E: are covered by a single snapshot or shadow copy command. • The user uses D: and E: independently, creating shadow copies whenever necessary.

  • Page 225: Successful Messages

    SnapSAN S2000 User Guide Successful Messages This table lists messages that indicate successful completion of a command: Event Log Message Explanation Shadow copy created successfully The shadow copy has been created successfully on the enclosure. No action is required. Informational Messages This table lists messages that are purely for information and require no intervention on the user’s part:...
  • Page 226 The user has reached the maximum number of the maximum number supported by snapshots for which the Snapshot component is the controller has been reached licensed. Contact Overland Storage for a license key. Unable to perform shadow copy as Space available for snapshots is now full and the Overwrite Data Area (ODA) is potentially invalid.
  • Page 227 SnapSAN S2000 User Guide Event Log Message Explanation PostCommitSnapshots called out of Internal Microsoft Windows VSS Problem. Using sequence Windows Services, stop the Overland Hardware Provider for VSS and restart it. Retry the command. Unable to allocate memory for Internal Microsoft Windows VSS Problem. Using...

  • Page 228: Appendix F - Mirror Example

    Overview IMPORTANT: The optional licenses for replication and mirroring must be activated on two different SnapSAN S2000 appliances before a mirror can be created. This section provides an example of how to set up a mirror plex between two S2000 appliances.
  • Page 229 SnapSAN S2000 User Guide h. Click Apply. 4. At the Destination appliance, create a mirror plex target exactly the same size as the Source target: a. Follow Steps a–g of the Source mirror plex target creation but do NOT apply settings yet.

  • Page 230: Overland Glossary & Acronym List

    Overland Glossary & Acronym List NOTE: This is a general Overland Storage glossary and acronym list. Not all items may be found in this document or be used by this product. 1000BASE-T 1000BASE-T (also known as IEEE 802.3ab) is a standard for gigabit Ethernet over copper wiring.
  • Page 231 SnapSAN S2000 User Guide Bar Code The machine-readable representation of a product code. Bar codes are read by a scanner that passes over the code and registers the product code. The width of black lines and white spaces between varies. Combinations of lines and spaces represent characters.
  • Page 232 SnapSAN S2000 User Guide Short for Device Specific Module, it is a software module that allows RAID storage array hardware to use Microsoft's MPIO. Expansion Slot Area in a computer that accepts additional input/output boards to increase the capability of the computer.
  • Page 233 SnapSAN S2000 User Guide NL_Port devices to a Fibre Channel fabric. FL_Ports are intermediate ports in virtual point-to-point links between end ports that do not reside on the same loop, for example NL_Port to FL_Port to F_Port to N_Port through a single Fibre Channel fabric switch.
  • Page 234 SnapSAN S2000 User Guide Initiators and targets have IP addresses, just like any other network entity. They are also identified using an iSCSI name, called the iSCSI Qualified Name (IQN). The IQN should be unique world-wide. It is made up of a number of components, specifying the date, identifying the vendor in reverse format, and then uniquely identifying the initiator or target.
  • Page 235 SnapSAN S2000 User Guide MPIO Short for Multipath Input/Output. A multipath solution built into Microsoft server- grade operating systems. It requires the DSM to work with RAID storage array hardware. Short for Maximum Transfer Unit. It is the largest size packet or frame, specified in octets (eight-bit bytes), that can be sent in a packet- or frame-based network.
  • Page 236 SnapSAN S2000 User Guide NTFS Short for New Technology File System. The standard file system used by Windows NT and later versions of the Windows operating system. Short for Network Time Protocol. A protocol for synchronizing the system clocks of computers over a packet-switched network.
  • Page 237 SnapSAN S2000 User Guide Short for Serial Attached SCSI. It is a point-to-point serial protocol that replaces parallel SCSI bus technology (multidrop) and uses the standard SCSI command set. It has no termination issues, supports up to 16,384 devices (using expanders), and eliminates clock skew.
  • Page 238 SnapSAN S2000 User Guide SMTP Short for Simple Mail Transfer Protocol. A TCP/IP protocol used for sending and receiving email. Short for Secure Sockets Layer. A protocol for managing the security of a message sent on the Internet. Storage Area Network See SAN.
  • Page 239 SnapSAN S2000 User Guide Topology Logical layout of the parts of a computer system or network and their interconnections. There are two types of topology: physical and logical. The physical topology of a network refers to the configuration of cables, computers, and other peripherals.

  • Page 240: Index

    8-69 statistics 7-43 conventions, typographical PR-iv targets 7-10 create a mirror 8-40 Appliances view 7-1 create a SnapSAN disk 4-2, 5-4 authentication change 8-27 create a SnapSAN pool 7-8 automatic disk extension 5-12 10400277-004 07/2011 IX-1 ©2010-11 Overland Storage, Inc.
  • Page 241 SnapSAN S2000 User Guide Create Network Interface page 8-18 Events tab 8-59 Create Network Route page 8-21 expand capacity B-1 Create Replicant Volume page 8-68 expansion arrays B-1 Create Snapshot Target page 8-35 Extend Target page 8-28 Create Storage Pool page 8-50...
  • Page 242 SnapSAN S2000 User Guide change DNS server 8-21 change domain name 8-21 LEDs 2-3 change hostname 8-21 license agreement 3-13 change iSNS server 8-21 License Key 8-10 change NTP server 8-21 licenses C-1 change SAN name 8-21 Linux replication scheduling 5-22...
  • Page 243 SnapSAN S2000 User Guide recovery point creation 5-16 scheduling replication 5-22 Recovery Point Creation page 8-44 Secure Authentication Certificate page 8-11 recovery points 8-72 sensors 8-6 refresh storage space 8-46 session, iSCSI 8-25 Remove Event Notification page 8-64 Set Admin Password page 8-7...
  • Page 244 SnapSAN S2000 User Guide targets 7-10 Targets tab 8-24 technical support PR-iii temperature sensors 8-7 third-party software C-1 troubleshooting 8-8 TXQLEN 8-17 type of authentication 8-24 types of events 8-2 typographical conventions PR-iv USB data import 8-70 USB data transfer 8-45...

Table of Contents