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Dell DR series Administrator's Manual

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Dell DR Series System
Administrator Guide

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  • Page 1 Dell DR Series System Administrator Guide...
  • Page 2 Copyright © 2014 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws. Dell and the Dell logo are trademarks of Dell Inc. in the United States and/or other jurisdictions. All other marks and names ™...

  • Page 3: Table Of Contents

    Software Components and Operational Guidelines ......................... 28 DR Series System and Data Operations ..........................28 DR Series Expansion Shelf ................29 Understanding About Adding a DR Series Expansion Shelf ........................29 Supported Software and Hardware ........................30 Terminal Emulation Applications ........................30 DR Series —...
  • Page 4 3 Setting Up the DR Series System................... 35 ........................35 Interacting With the DR Series System ..................35 Networking Preparations for the DR Series System .....................36 Connections for Initializing a DR Series System ..........................37 Initializing the DR Series System ....................37 Default IP Address and Subnet Mask Address ..........................38...
  • Page 5 ....................72 Networking Page and Ethernet Port Values ......................73 Managing the DR Series System Password ........................73 Modifying the System Password ......................73 Resetting the Default System Password ........................74 Shutting Down the DR Series System ..........................74 Rebooting the DR Series System ........................
  • Page 6 6 Monitoring the DR Series System..................99 ....................99 Monitoring Operations Using the Dashboard Page ............................99 System Status Bar ............100 DR Series System and the Capacity-Storage Savings-Throughput Panes ..........................100 System Information Pane ............................. 101 Monitoring System Alerts ........................101 Using the Dashboard Alerts Page ..........................
  • Page 7 Resetting the Boot LUN Setting in PERC H700 BIOS After Running RM ........................128 Hardware Removal or Replacement ..................128 DR Series System: Proper Shut Down and Start Up ..........................129 DR Series System NVRAM 9 Configuring and Using Rapid Data Storage................ 131 ...............................
  • Page 8 Uninstalling the Dell OST Plug-In for Linux ................147 Configuring DR Series System Information Using NetBackup ..............148 Using NetBackup CLI to Add DR Series System Name (Linux) ............... 148 Using NetBackup CLI to Add DR Series System Name (Windows) ..................148 Configuring NetBackup for the DR Series System ................
  • Page 9 12 Supported Ports in a DR Series System................185 13 Getting Help..........................187 ..........................187 Before Contacting Dell Support ..............................188 Contacting Dell...

  • Page 11: Introduction To The Dr Series System

    (CLI). In some instances, the DR Series system GUI may provide additional features and options that are not available in the DR Series system CLI and vice versa. For example, Global View is only available in the GUI and the ability to add and remove clients in only available in the CLI. For more information about the Dell DR Series System Command Line Reference Guide .

  • Page 12: Other Information You May Need

    Source Code Availability A portion of the DR Series system software may contain or consist of open source software, which you can use under the terms and conditions of the specific license under which the open source software is distributed.

  • Page 13: Understanding The Dr Series System

    Understanding the DR Series System The DR Series system is a high-performance, disk-based backup and recovery appliance that is simple to deploy and manage, and offers unsurpassed Total Cost of Ownership benefits. Features such as innovative firmware and an all- inclusive licensing model ensure optimal functionality and the assurance of no hidden costs for desired future features.

  • Page 14: About The Dr Series System

    About the DR Series System The Dell DR Series system is a solution designed to reduce your backup data footprint using a number of comprehensive backup and deduplication operations that optimize storage savings. Collectively, the DR Series system comes in the following types: •...

  • Page 15: External Drive Capacity

    The capacity values listed in Table 2 represent the additional storage capacity in the external drives that are available when you add the supported expansion shelf enclosures to a DR Series system. Additional data storage can be added using the expansion shelf enclosures in the following capacities. For more information on the expansion shelf Dell DR Series System Interoperability Guide and enclosures, see “Expansion Unit Limits”...
  • Page 16 It is highly recommended that you disable data compression used by the data source. For optimal savings, the native data sources need to send data to the DR Series system in a raw state for ingestion.
  • Page 17 The DR Series system supports the 64:1 replication of data (32:1 if on the DR4X00), whereby up to 64 source DR Series systems can write data to different individual containers on a single, target DR Series system. This supports the use case where branch or regional offices can each write their own data to a separate, distinct container on a main corporate DR Series system.

  • Page 18: Data Deduplication And Compression

    DR Series system replica container, and then restore it back to the original source location of the data on the other side of the WAN link.

  • Page 19: Streams Vs. Connections

    This topic describes the differences between data streams and application connections. Streams can be likened to the number of files written at the same time to a DR Series system. The DR Series system tracks the number of files being written and assembles the data into 4MB chunks before processing that section of the data.

  • Page 20: Reverse Replication

    Targets with replication data are read-only, and are updated with new or unique data during scheduled or manual replications. The DR Series system can be considered to act as a form of a storage replication process in which the backup and deduplication data is replicated in real-time or via a scheduled window in a network environment. In a replication relationship between two DR Series systems, this means that a relationship exists between a pair of systems.

  • Page 21: Reverse Replication: Alternate Method

    WAN to a replica container that is backed up to tape. The data needs to be restored from the tape backup to the original location; first back to a DR Series system replica container, and then back to the original source location of the data on the other side of the WAN link.

  • Page 22: Nfs

    / # nfso -po nfs_use_reserved_ports=1 CIFS The Common Internet File System (CIFS) remote file access protocol is one supported by the DR Series system, and is also known as a Server Message Block (SMB). SMB occurs more commonly than the Network File System (NFS) protocol on systems that run the Microsoft Windows operating system.

  • Page 23: Access Control List Support In Containers

    Configuring Share-Level Security. NOTE: Any user that is part of BUILTIN\Administrators can edit ACLs on CIFS shares. The local DR Series system administrator is included in the BUILTIN\Administrators group. To add additional domain groups to the BUILTIN \Administrators group, you can use the Computer Manager tool on a Windows client to connect to the DR Series system as Domain administrator and add any groups you want.

  • Page 24: Unix Permissions Guidelines

    Permissions are based on the user IDs (UIDs) for the file Owner and group IDs (GIDs) for the primary group. Files have owner IDs and group owner IDs. To enable Unix access, the DR Series system supports three levels of users: •...

  • Page 25: Rapid Data Storage (Rds): Dr Series System

    If the data already exists, only the pointers need to be updated on the DR Series system, and the duplicate chunk of data does not need to be transferred to the system.

  • Page 26: Openstorage Technology (Ost) Api

    DR Series system (the data backup and deduplication device) using the OST API: • NetBackup needs to store a file to disk. To do this it notifies the DR Series system via the OST API which file it needs to backup and what to name this file.

  • Page 27: Software Components And Operational Guidelines

    Copy or duplicate it • If NetBackup, using the OST API, directs the DR Series system to expire a stored file, it deletes it from its filesystem. • Similarly, if NetBackup, using the OST API, wants to restore from a stored file, it directs the DR Series system which file to restore, which then delivers the stored file to NetBackup for the restore.

  • Page 28: Dr Series System And Data Operations

    The DR Series system consists of a total of 14 drives. Two of these drives are 2.5-inch drives that are configured as a Redundant Array of Independent Disks (RAID) 1 on the RAID Controller and this is considered to be volume 1. In the DR4000 system, these drives are internal, while in the DR4100 system, these drives are accessible from the rear.

  • Page 29: Understanding About Adding A Dr Series Expansion Shelf

    NOTE: If you are running a DR Series system with an installed release of system software prior to 2.1, and you intend to upgrade to release 3.x system software and add an external expansion shelf (or shelves), Dell recommends that you observe the following best practice sequence of operations to avoid any issues: •...

  • Page 30: Terminal Emulation Applications

    Dell PowerVault MD1200 expansion shelf enclosure. Make sure that the Dell PowerVault MD1200 front panel selector switch is set to its Unified mode (with the switch set to its “up” position, indicated by a single Volume icon).
  • Page 31 Dell PowerVault MD1200 and MD1220 MD1200 front chassis to the top (unified mode) position. For more information, see Storage Enclosures Hardware Owner's Manual at support.dell.com/manuals. Figure 3. Dell PowerVault MD1200 Rear Chassis Figure 4. Unified Mode Daisy-Chained Redundant Path Dell PowerVault MD1200 Enclosures...

  • Page 32: Adding A Dr Series System Expansion Shelf

    Adding a DR Series System Expansion Shelf There are three tasks associated with configuring an expansion shelf enclosure with the DR Series system that you need to complete before being able to use this additional data storage capacity: •...
  • Page 33 To verify that an enclosure was added, click Dashboard→ Health. The Health page is displayed, and each properly cabled and activated expansion shelf enclosure has a corresponding tab that displays a green status check mark (for example, if you have installed two enclosures, two tabs are displayed: Enclosure 1 and Enclosure 2).

  • Page 35: Setting Up The Dr Series System

    • IP Addresses: You need to make sure to have IP addresses that you use for the DR Series system. The DR Series system ships with a default IP address and subnet mask address, which should only be used for an initial system configuration.

  • Page 36: Connections For Initializing A Dr Series System

    (with one connection made to a USB keyboard port on the DR Series front/rear chassis, and a second connection made to the VGA monitor port on the DR Series system rear chassis. (See Figure 3 for locations in the DR...

  • Page 37: Initializing The Dr Series System

    Reserving MAC addresses using DHCP If the network where the system will reside does not have or does not support DHCP, then the DR Series system can use the default IP (10.77.88.99) and subnet mask (255.0.0.0) addresses provided for initialization. If the network where the system will reside does not have or support reserving an IP address for the MAC address of the NICs in the DHCP server, then DHCP assigns an arbitrary IP address that is unknown (and which is unusable by you) during initialization.

  • Page 38: Local Console Connection

    If your network does not accept the default subnet mask address (255.0.0.0), you can establish a connection between the DR Series system and a laptop workstation. In this case, make sure that you connect using SSH, and use the default IP address to run the Initial System Configuration Wizard.
  • Page 39 You are now ready to perform initialization using the DR Series system CLI login process. For more information, see Logging in and Initializing the DR Series System. Figure 6. DR4000 System Rear Chassis Port Locations Item Indicator, Button, or Connector Icon...

  • Page 40: Idrac Connection

    You are now ready to perform initialization using the DR Series system CLI login process. For more information, see Logging in and Initializing the DR Series System. Figure 7. DR4100 System Rear Chassis Port Locations Item Indicator, Button, or Connector Icon...

  • Page 41: Logging In And Initializing The Dr Series System

    Logging in and Initializing the DR Series System Use the DR Series system CLI and the Initial System Configuration Wizard to log in to and initialize the system. After completing a local console or iDRAC connection, log in to the DR Series system CLI: Launch a terminal emulator application (like PuTTY), and type the default IP address for the DR Series system (if you are not using iDRAC or local console).

  • Page 42: Accessing Idrac6/Idrac7 Using Racadm

    You are now ready to log in to the system using the DR Series system GUI. NOTE: Before you log into the system using the DR Series system GUI, make sure to register it in the local Domain Name System (DNS) for your network so that it is a DNS-resolvable entry.
  • Page 43 The DR Series System Login page is displayed. NOTE: The DR Series System Login page may display a warning message if the web browser you are using does not properly support the DR Series system. If you are running a Microsoft Internet Explorer (IE) web browser, make sure that you disable the Compatibility View.
  • Page 44 Configuring System Date and Time Settings. NOTE: Dell recommends using NTP when the DR Series system is part of a workgroup and not part of an domain. When the DR Series system is joined to a domain, such as the Microsoft Active Directory Services (ADS) domain, NTP is disabled.

  • Page 45: Registering A Dr Series System

    Registering a DR Series System Before you can start using the DR Series system using its graphical user interface (GUI) for the first time, you must properly register the system with Dell by completing the Customer Registration and Notification page. The Customer...

  • Page 46: Enabling Active Scripting In Windows Ie Browsers

    Click OK to close the Internet Options page. Disabling the Compatibility View Settings To disable the Compatibility View settings of the IE web browser you are using to log in to access the DR Series system graphic user interface (GUI), complete the following:...

  • Page 47: Understanding The Dashboard Options

    Understanding the Dashboard Options The DR Series system provides a mechanism for viewing and accessing the latest information about the system as soon as you log in. The Dashboard section of the navigation panel (which displays the Dashboard page by default) lists the current system status and provides the following menu options, that when selected, display the corresponding pages: •...

  • Page 48: Health

    Health You can use the Health page to display and view the current state of the DR Series systems (see Figures 1, 2, and 3). To display the Health page, click Dashboard → Health or click the HW State link on the Dashboard page. Both methods display this page, which shows the current state of the system hardware (and any installed data storage expansion shelf enclosure).
  • Page 49 Health Page: DR4100 System Figure 2 Health Page (DR4100 System and Components) DR Series System Components In the System tab on the Health page, the following images and System Hardware Health table display the status of the system components (for specific locations, see the Figures).
  • Page 50 For more information, see Monitoring System Health. DR Series System Enclosures In the Enclosure tab on the Health page, the following images and System Hardware Health table display the status of the expansion shelf enclosure components (for specific locations, see Figure 4).

  • Page 51: Usage

    Usage To display the Usage page, click Dashboard → Usage. The Usage page consists of options, pull-down lists, and tabs that let you filter the DR Series system usage statistics that you want to view, which include: • Latest Range and Display last...—these options display system usage details for based whether you select Latest Range or Time Range.

  • Page 52: System Usage

    System Usage This Usage page is where the DR Series system usage is displayed based on the Latest Time or Time Range values you selected. System usage statistics are grouped and represented by the following tabs: • CPU Load •...
  • Page 53 • Current number of active files ingested (based on time in minutes) • Current number of active bytes (Mebibytes/MiB) ingested (based on time in minutes) You can choose to display this information in 1–hour (1h), which is the default, or in 1–day (1d), 5–day (5d), 1–month (1m), and 1–year (1y) increments for both the Active Files and Active Bytes graphs.
  • Page 54 Connection Type Pane The Connection Type pane is part of the Container Statistics page, and the information displayed in this pane depends upon the connection type of the selected container: • NFS containers — lists the following NFS connection configuration information: –...

  • Page 55: Replication Statistics Page

    Replication Statistics Page To display the Replication Statistics page, click Dashboard → Replication Statistics. This page lets you view and monitor statistics for replication containers or peer DR Series systems that you select, and consists of two main panes: •...

  • Page 56: Storage Page And Options

    NOTE: The DR Series system software includes version checking that limits replication only between other DR Series systems that run the same system software release version. For example, Release 2.0.x systems will not be able to replicate with Release 2.1 or Release 3.0 systems, but can replicate with systems running Release 2.0.0.1 or 2.0.0.2.

  • Page 57: Understanding The Storage Options

    Understanding the Storage Options The DR Series system provides a mechanism for storing backed up and deduplicated data that has been ingested by the system into easily accessible storage containers. The DR Series system graphical user interface (GUI) simplifies the process for storing this type of data via its system storage processes.

  • Page 58: Replication Page

    • Display container, connection, and replication statistics The Containers page also displays a Containers summary table that displays the following types of container-related information: • Containers — lists containers by name • Files — lists the number of files in each container •...

  • Page 59: Clients

    To display the Clients page, click Storage → Clients. This page displays the total number of clients that are connected to the DR Series system, which can be a combination of NFS, CIFS, RDS, and OST clients, and this total is listed above the Client tabs (NFS, CIFS, and RDA tabs).

  • Page 60: About The Schedules Page And Options

    About the Schedules Page and Options To display the Schedules page, click Dashboard → Schedules. This page displays any existing Replication or Cleaner operations that have been set up for the DR Series system. If no times are listed, this indicates there are no scheduled...

  • Page 61: Setting A Replication Schedule

    NOTE: Replication schedules can only be set on individual replication-enabled source containers. NOTE: The DR Series system software includes version checking that limits replication only between other DR Series systems that run the same system software release version. If versions are incompatible, the administrator will be notified by an event.

  • Page 62: About The System Configuration Page And Options

    Network Time Protocol (NTP) servers associated with the system. However, when the DR Series system is joined to a domain, the NTP Servers setting on the Date and Time page is disabled and is not displayed.
  • Page 63 • This page lists the configured local CIFS users by user name that belongs to the local workgroup in the DR Series system. The Local Workgroup Users (CIFS) page provides the Create, Edit, and Delete options (by which you manage the users that belong to this local workgroup.

  • Page 64: Understanding The System Configuration Page Options

    NOTE: Dell recommends using the Network Time Protocol (NTP) servers when the DR Series system is part of a workgroup and not part of a domain. The NTP time mode is disabled when the DR Series system is joined to an Active Directory Services (ADS) domain.

  • Page 65: Support Page And Options

    NOTE: To change CIFS login credentials, you can use the DR Series system CLI command, authenticate –set – Dell DR Series System Command Line Reference Guide . user . For details, see the NOTE: Editing your existing login password is different than resetting your login password. Click Edit Password in...

  • Page 66: Understanding The Support Page Options

    The Diagnostics page provides the Generate, Download, and Delete options. The diagnostics bundle of log files are used by Dell Support to diagnose system conditions that you report or are detected as issues during DR Series system operations.
  • Page 67 Adding an expansion shelf enclosure requires that you order a license for each enclosure from a Dell Account representative at the time that you order the DR Series system. You can also order this at a later date when you want to add additional external storage to your base DR Series system.
  • Page 68 Click Install License and follow all prompts. If successful, a License has been successfully installed dialog is displayed, and the new license appears in the Number of Installed Licenses pane. The Number of Installed Licenses pane lists the total number of installed licenses, and defines each installed license by ID, a brief description, an entitlement ID (license tag), and the status of the license.

  • Page 69: Configuring The Dr Series System Settings

    Configuring the DR Series System Settings This topic introduces the concept that before you can run any DR Series system operations, you first need to understand the following key tasks: • How to initialize the system • How to shut down or reboot the system •...
  • Page 70 IP addressing for your system). NOTE: To select the DHCP mode of IP addressing, select DHCP, and click Submit. The remaining substeps in this step only need to be completed if you selected the Static mode of IP addressing for the DR Series system.
  • Page 71 Click Submit to have the DR Series system accept the new values (or click Cancel to display the Networking page). The Updated IP Address dialog is displayed when the selection is successful (if you change the static IP address manually, you need to use this IP address in the browser when you log back into the DR Series system).

  • Page 72: Networking Page And Ethernet Port Values

    13. For Secondary DNS, type an IP address that represents the secondary DNS server for your system; this is an optional field. 14. Click Submit to have the DR Series system accept the new values (or click Cancel to display the Networking page). The Updated DNS dialog is displayed when the selection is successful.

  • Page 73: Managing The Dr Series System Password

    Resetting the Default System Password. Modifying the System Password To configure a new password or to modify an existing password for logging in to the DR Series system, complete the following: To change the system password, do one of the following:.

  • Page 74: Shutting Down The Dr Series System

    In Service Tag, type the Service Tag associated with your system. NOTE: If you are unsure of the Service Tag associated with your DR Series system, it can be found on the Support page (click Support in the navigation panel to display the Support Information pane, which displays the Service Tag).

  • Page 75: Configuring Active Directory Settings

    Microsoft Active Directory Service (ADS). To join an ADS domain, complete steps 1 through 4 in the following procedure (to leave an ADS domain, skip to step 5). When you join the DR Series system to an ADS domain, this disables the Network Time Protocol (NTP) service and instead uses the domain-based time service.

  • Page 76: Configuring Email Alert Settings

    Configuring Email Alert Settings You can create and manage recipient email addresses for users to which you want to send DR Series system email alerts. The Email Alerts page contains options that let you add new, edit or delete existing recipient email addresses, and send a test message to the recipient email addresses listed in the Recipient Email Address pane.

  • Page 77: Editing Or Deleting A Recipient Email Address

    You can configure the administrator contact information to identify the person who is actively managing or responsible for your DR Series system acting as its administrator. To do this, enter contact information for the administrator on the Administrator Contact Information page using the Edit Contact Information option.

  • Page 78: Adding Administrator Contact Information

    In the navigation panel on the Dashboard page, click System Configuration → Admin Contact Info to display the Administrator Contact Information page. For more information about contact information for the administrator, see Editing Administrator Contact Information, and Adding Administrator Contact Information.

  • Page 79: Editing Administrator Contact Information

    You can edit the system password and system password reset configuration on this page. Modifying the System Password To configure a new password or to modify an existing password for logging in to the DR Series system, complete the following: To change the system password, do one of the following:.

  • Page 80: Configuring An Email Relay Host

    Configuring an Email Relay Host If needed, you can configure an external email relay host to serve your DR Series system if the network email system requires one. The email relay host is typically an external mail server that relays any email alerts from the DR Series system to each of the designated recipient email addresses.

  • Page 81: Configuring System Date And Time Settings

    NTP mode. If this setting is not visible in the Settings pane, verify that the Mode indicates it is joined to an Active Directory Services (ADS) domain. When joined to a domain, NTP is disabled for the DR Series system.

  • Page 82: Editing System Date And Time Settings

    Protocol (NTP) is disabled and the DR Series system uses the domain-based time service. NTP is used in the Mode setting when the DR Series system is part of a workgroup and not joined to a domain. To be able to modify or edit any of the Settings pane values when the DR Series system is joined to an ADS domain, you would first need to leave the ADS domain before you could modify any of the date and time settings.

  • Page 83: Configuring Share-Level Security

    Active Directory Service (ADS) when joined to an ADS domain. To implement share-level security on a DR Series system that has been joined to an ADS domain, make sure that you have mapped a drive on the DR Series system using an account with DOMAIN\Administrator credentials (or by using an account that is equivalent to a domain administrator).
  • Page 84 Click OK to add the object to the Group or user names list box. 10. In the Permissions pane for the selected object, select the Allow or Deny check box to configure the following permissions: – Full Control – Change –...

  • Page 85: Managing Dr Series Storage Operations

    Managing DR Series Storage Operations Managing Container Operations This topic introduces the concept of using the DR Series system to manage all of your data storage and replication operations. Data storage operations can include tasks such as creating new containers, managing or deleting existing containers, moving data into containers, and displaying current container statistics.
  • Page 86 – dash (-) or underscore (_) special characters NOTE: The DR Series system does not support the use of the following special characters in container names: /, #, or @. In Marker Type, select the appropriate marker that supports your DMA.
  • Page 87 – administrator represents the system administrator NOTE: The DR Series system administrator that manages the system has a different set of privileges than does the CIFS administrator user. Only the DR Series system administrator can change the password for the CIFS administrator user.
  • Page 88 N/A in the Replication column of this table). Creating an Unassigned Connection Type Container To create an unassigned container in the DR Series system without a defined connection type (No Access), complete the following: NOTE: The DR Series system allows you to create a container without configuring it with a specific connection type.

  • Page 89: Editing Container Settings

    Deleting Containers Before deleting a container, Dell recommends that you first carefully consider whether or not you need to preserve the data in the container. To delete an existing container that contains data, complete the following:...

  • Page 90: Moving Data Into A Container

    The Network page is displayed, which lists all current storage and replication containers. NOTE: However, if your DR Series system is not listed, you can enter its hostname or IP Address preceded by "https://" and followed by the container name in the Address bar to access it (for example in this format, https://10.10.20.20/container-1).
  • Page 91 Pane, and Monitoring Container Statistics. In addition, you can also display the set of system statistics by using the DR Series system CLI stats --system command to show the following categories of system statistics: – Capacity Used (system capacity used in Gibibytes or GiBs) –...

  • Page 92: Managing Replication Operations

    TCP ports be configured to support replication operations: NOTE: To allow replication storage information to be viewed by a corresponding data management agent (DMA), the target DR Series system needs to reside in the same domain as the source DR Series system in the replication relationship.

  • Page 93: Creating Replication Relationships

    NOTE: Be aware that the storage capacity of the target DR Series system is directly affected by the number of source systems writing to its containers, and also by the amount being written by each of these source systems. Creating Replication Relationships To create a new replication relationship, complete the following: Select Storage →...

  • Page 94: Editing Replication Relationships

    Click Create Replication (or click Cancel to display the Replication page). The Successfully added replication dialog is displayed when successful. Mapping to a Container on a Remote System (Replication) This topic describes the process for creating a new replication relationship by mapping to a container on a remote system using in the Replication page.

  • Page 95: Deleting Replication Relationships

    Replication page). The Successfully started replication dialog is displayed. Setting the Replication Bandwidth To set the replication bandwidth rate on a DR Series system, complete the following: Select Storage→ Replication. The Replication page is displayed. Click Select to identify the replication relationship on which you want to set the replication bandwidth speed rate, and click Bandwidth.

  • Page 96: Displaying Replication Statistics

    Replication Filter—the Container Filter section in this pane lets you select one or more replication containers, or all of the replication containers, one or more peer DR Series systems. The Headers section lets you select any of ten statistics type check boxes that you choose to display in the Replication Statistics summary table (by default, five check boxes are selected: Peer Status, Replication Status, Network Throughput, Network Savings, and Progress %).
  • Page 97 NOTE: You must set a corresponding Stop Time for every Start Time in each Replication schedule you set. The DR Series system will not support any Replication schedule that does not contain a Start Time/Stop Time pair of setpoints (daily or weekly).
  • Page 98 The following example shows how to set up a weekly Replication schedule with a start time at 01:00 am on Saturday and a stop time at 01:00 am on Sunday. The DR Series system uses the 24-hour clock convention for its time keeping in which each day is divided into twenty-four 1-hour segments.

  • Page 99: Monitoring The Dr Series System

    Monitoring the DR Series System This topic introduces the ways in which you monitor the current state of DR Series system operations using the Dashboard page options in the navigation panel. The Dashboard page displays a summary of current system status categories (System State, HW State, Number of Alerts, and Number of Events.

  • Page 100: Dr Series System And The Capacity-Storage Savings-Throughput Panes

    (critical, warning, and informational), timestamp, and a message that briefly describes event status. DR Series System and the Capacity-Storage Savings-Throughput Panes There are three central panes in the Dashboard page that display data graphs which illustrate the current DR Series system status for Capacity, Storage Savings, and Throughput: •...

  • Page 101: Monitoring System Alerts

    NOTE: To display additional information about certain elements in the DR Series system GUI, click the corresponding Question Mark (?) icon. Monitoring System Alerts You can monitor the DR Series system alerts and display the current state of the system using the navigation panel, the Dashboard page, and its options: •...

  • Page 102: Viewing The System Alerts

    Monitoring System Events You can monitor the DR Series system events, and filter events you want to display using the Event Filter pane in the Events page. This page can display All system events, or you can restrict the events to only one of the following types: Info (Informational), Warning, or Critical events.

  • Page 103: Using The Dashboard Events Option

    Filter. Using the Dashboard Events Option To use the DR Series navigation panel to display the current number of system events, complete the following: Click Dashboard→ Events in the navigation panel. The Events page is displayed, which lists the total number of system events in the System Events summary table, and provides the current timezone (for example, US/Pacific).

  • Page 104: Monitoring System Health

    Using the Dashboard to Display System Events. Monitoring System Health Monitor and display the current state of your system hardware status using the following methods in the DR Series system: • Using Dashboard→ Health , you can access the Health page from the navigation panel.

  • Page 105: Using The Dashboard Page To Monitor System Health

    In addition, the service tag of the expansion shelf is displayed. Both the System and Enclosure tabs display the System Hardware Health summary table that lists the current status of all major components in the DR Series system or its expansion shelf, respectively.

  • Page 106: Using The Dashboard Health Options

    ALB—adaptive load balancing (ALB) is the default; this configuration does not require special switch support, but it does require the data source machine to be on the same subnet as the DR Series system. The ALB is mediated by the Address Resolution Protocol (ARP).

  • Page 107: Monitoring System Usage

    Monitoring System Usage To display the current DR Series system usage, click Dashboard → Usage to display the Usage page. This page allows you to monitor system status and the currently displayed system usage status is based on the Latest Range or Time Range settings that are in effect.

  • Page 108: Setting A Latest Range Value

    Click the tab that corresponds to the usage type you want to monitor using your choice of settings (or click All to display all of the system usage tab results based on your choice of settings). Observe the DR Series system usage results based on the criteria selected. For more information about the Usage page, see...

  • Page 109: Displaying The Container Statistics Page

    Mebibytes/per second (MiB/s) based on time (in minutes), and the number of write data in MiB/s based on time (in minutes). NOTE: The Current Time Zone for the DR Series system is displayed below the Backup Data pane (for example, System Time Zone: US/Pacific).

  • Page 110: Monitoring Replication Statistics

    Click Dashboard → Replication Statistics to display and monitor replication statistics for one (or more) containers, and one (or more) peer DR Series systems selected in the Replication Filter pane. Depending upon the configured settings, you can monitor and display replication statistics for: •...

  • Page 111: Displaying The Replication Statistics Page

    – Click Peer System, press Ctrl, and select the peer systems in the list box to select one or more peer DR Series systems in the list that you want to display. NOTE: Only one of the Container Filter options can be active at any one time (they are mutually exclusive).

  • Page 112: Displaying Replication Statistics Using The Cli

    Displaying Replication Statistics Using the CLI In addition to using the DR Series system GUI to display replication statistics, you can also display statistics for a specific replication container by using the DR Series system CLI stats --replication --name <container name> command to view the following replication container statistics categories: •...

  • Page 113: Using Global View

    You log in to DR Series system A, and on its Global View page, you add DR Series systems B and C (resulting in A, B, and C being in the view). Then you log in to DR Series system B and add A and C to its Global View page (also resulting in A, B, and C being in the view).

  • Page 114: Configuring Active Directory Settings

    Microsoft Active Directory Service (ADS). To join an ADS domain, complete steps 1 through 4 in the following procedure (to leave an ADS domain, skip to step 5). When you join the DR Series system to an ADS domain, this disables the Network Time Protocol (NTP) service and instead uses the domain-based time service.

  • Page 115: About The Global View Page

    The Global View page displays a dashboard of operating statistics for all of the DR Series systems that you have added to the view. From this page, you can monitor the status of your enterprise as well as easily navigate to any DR Series system in your enterprise.

  • Page 116: Appliance List

    Global View. Disconnected Displays the number of appliances that were added to the Global View, but are unable to be reached. To troubleshoot, see Reconnecting DR Series Systems. Notifications Alerts Displays the total number of alerts in all appliances in the Global View.
  • Page 117 Series system will not automatically be logged back in. In this case, the Reconnect Units link will be enabled, and you must manually log in to the DR Series system. Capacity Displays the used and free physical storage capacity in percentages and volume in Gibibytes and Tebibytes (GiBs and TiBs).

  • Page 118: Navigating In Global View

    To navigate to different DR Series systems in your Global View dashboard, do one of the following: • In the left navigation pane above Global View, use the drop-down list to select the DR Series system that you want to view. •...

  • Page 119: Removing A Dr Series System From Global View

    View dashboard. All other systems are available to be removed from your Global View page. Keep in mind that when you remove a DR Series system from a Global View dashboard on one system, it does not remove it from any other Global View dashboards you may have added it to on other systems.

  • Page 120: Using The Reconnect Report

    The Reconnect DR Units Report provides information about your most recent attempt to reconnect DR Series systems. The link to access the Reconnect DR Units Report is only enabled after you attempt to reconnect DR Series systems. To view the Reconnect DR Units Report, complete the following: On the Global View page, click Reconnect Report.

  • Page 121: Using The Dr Series System Support Options

    You can use the Support page and its Diagnostics, Software Upgrade, and License options to maintain the state of your DR Series system. To access these options, use the DR Series system navigation panel (for example, click Support→ Diagnostics to display the Diagnostics page) or use the Diagnostics, Software Upgrade, or License links on the Support page.

  • Page 122: Generating A Diagnostics Log File

    Service. A DR Series diagnostics log file is a bundle that contains a variety of file types that record the latest system settings, and saves them in a compressed .lzip file format. The Diagnostics page identifies each diagnostics log file by the following attributes: hostname >_<...

  • Page 123: Downloading Diagnostics Log Files

    Download the file to the desired location, depending upon the following: a) If accessing the DR Series system GUI from a Linux-based system: click Save File and navigate to a different folder location, define a new file name (or retain the existing file name), and click Save to save the diagnostics log file to a specified folder location.

  • Page 124: Deleting A Diagnostics Log File

    Software Upgrade Page and Options Use the Software Upgrade page to verify the current installed version of the DR Series system software in the Software Information pane, or to apply updates to the system. There are two methods you can use to display the Software Upgrade page: •...

  • Page 125: Verifying The Current Software Version

    Protocol mode is set to SCP (Secure Copy) mode. NOTE: You can use other SCP tools with the DR Series system, but you cannot use these other SCP tools to copy other types of files to or from the DR Series system.

  • Page 126: Restore Manager (Rm)

    CLI attempts are unsuccessful, contact Dell Support for assistance. Restore Manager (RM) The Dell Restore Manager (RM) utility can be used to restore the DR Series system software. RM can be used when a non-recoverable hardware or software failure prevents the DR Series system from functioning correctly.

  • Page 127: Creating The Restore Manager Usb Key

    Creating the Restore Manager USB Key To create a Restore Manager (RM) USB key, you must first download the RM image (.img) file from the Dell Support site, and then transfer this on to a USB key. The USB key must be a minimum of 4 GB (Gigabytes) in size or larger. Windows USB image tools can be used to transfer the RM image when they meet the following conditions: •...

  • Page 128: Resetting The Boot Lun Setting In Perc H700 Bios After Running Rm

    Dell Restore Manager (RM) utility to recover the DR Series system OS drives. Following the RM recovery process, the boot logical unit number (LUN) has to be reset to VD0 RAID1. The DR Series system unsuccessfully attempts to boot from RAID6 instead of RAID1.

  • Page 129: Dr Series System Nvram

    Replacement. NVRAM Backup Failure Recovery After you have physically replaced the NVRAM card in a PCIe x4 (or x8) slot in the DR Series system chassis, you can recover from an NVRAM backup failure by completing the following tasks: CAUTION: You must wait a minimum of 20 minutes after powering on the DR Series system before using the DR Series system CLI maintenance --hardware --reinit_nvram command.
  • Page 130 CAUTION: You must wait a minimum of 20 minutes after powering on the DR Series system before using the DR Series system CLI command: maintenance --hardware --reinit_nvram. This post power-on waiting period allows the NVRAM card, the super capacitor calibration, and the SSD processes to fully complete, which are necessary for the proper operation of the DR Series system.

  • Page 131: Configuring And Using Rapid Data Storage

    Series system requires the Dell Rapid OFS (ROFS) plug-in to integrate its data storage operations with the Dell NetVault Backup (NVBU). The ROFS plug-in is installed by default on the NVBU server and the Dell DR Series system when the latest software updates are installed.

  • Page 132: Rds Guidelines

    You can turn On or turn Off client-side optimization (also known as client-side deduplication) using the DR Series system CLI commands, rda --update_client --name --mode. For more information about DR Series system CLI commands, see...

  • Page 133: Adding Rds Devices In Nvbu

    Backing Up Data on the RDS Container Using NVBU You must back up data on the RDS container (available on the DR Series systems) using NVBU. Before you can back up data using the RDS protocol, you must create an RDS container on the DR Series system and add that container as an RDA device on NVBU.
  • Page 134 The backup job may take a few minutes to complete depending on the amount of data that is backed up. You can view the progress of the backup job on NVBU, using the Job Management section of NVBU. Dell NetVault Backup Administrator’s Guide . NOTE: For more information on Dell NetVault Backup, see the...

  • Page 135: Replicating Data To A Rds Container Using Nvbu

    Using NVBU with the DR Series system, you can run optimized replication jobs. You can replicate data in backup RDS containers on one DR Series system to a target RDS container that is on a different DR Series system. Both the source and target RDS containers must be added to the NVBU server as RDA devices.

  • Page 136: Supported Dr Series System Cli Commands For Rds

    Dell NetVault Backup Administrator’s Guide . NOTE: For more information on Dell NetVault Backup, see the Supported DR Series System CLI Commands for RDS The following are the supported DR Series system CLI commands for RDS operations: administrator@DocTeam-SW-01 > rda Usage: rda --show [--config] [--file_history] [--name <name>]...
  • Page 137 DMA optimized duplication operation. This command displays only up to the last 10 such files. The --name in the rda --show --name command represents the RDA container name. For more information about RDA-related DR Series system CLI commands, see the Dell DR Series System Command Line Reference Guide .

  • Page 139: Configuring And Using Ost

    DMAs can take full advantage of key DR Series system features like replication and data deduplication. The DR Series system accesses the OpenStorage API code through a Dell OST plug-in, which can be installed on the supported media server platform type that you choose (Windows or Linux). When OST is used with the DR Series system, it offers the following benefits: •...

  • Page 140: Openstorage Technology (Ost) Api

    DR Series system (the data backup and deduplication device) using the OST API: • NetBackup needs to store a file to disk. To do this it notifies the DR Series system via the OST API which file it needs to backup and what to name this file.

  • Page 141: Ost Guidelines

    The Dell DR Series system licensing is all-inclusive, so that no additional Dell licensing is required to use OST or the optimized duplication capability. The Dell OST plug-in that gets installed on a supported Linux or Windows media server...

  • Page 142: Ost Required Configurations

    You can configure a logical storage unit (LSU) as an OpenStorage Technology (OST) connection type container for data storage by using the DR Series system GUI. To configure an LSU as an OST connection type container, log in to the DR Series system and complete the following: Navigate to the Containers page (in the Dashboard navigation panel).

  • Page 143: Installing The Dell Ost Plug-In

    Installing the Dell OST Plug-In Before you can start the installation process for the Dell OST plug-in, you need to understand its role. The Dell OST plug- in must be installed on to the media server type you choose (this DR Series system release supports Linux and Windows).

  • Page 144: Understanding The Dell Ost Plug-In (Windows)

    Click Finish to exit the wizard. Installing the OST Plug-In for NetBackup on Windows This topic describes how to install the Dell OST plug-in on a media server running the supported Microsoft Windows server operating system software (and using the NetBackup DMA).

  • Page 145: Uninstalling The Dell Ost Plug-In For Windows

    Use the standard Microsoft Windows uninstall process to uninstall the Dell OST plug-in from a Windows-based media server. NOTE: Dell recommends that you retain the Dell OST plug-in installer on the media server in case you need to use it to reinstall the Dell OST plug-in.

  • Page 146: Installing The Ost Plug-In For Netbackup On Linux

    Installing the OST Plug-In for NetBackup on Linux This topic describes how to install the Dell OST plug-in on a media server running the supported Red Hat Enterprise Linux or SUSE Linux server operating system software (using the NetBackup DMA).

  • Page 147: Uninstalling The Dell Ost Plug-In For Linux

    NetBackup CLI, such as adding the DR Series system name to NetBackup on each Linux and Windows media server you intend to use with the DR Series system, using the NetBackup GUI to configure it to work with the DR Series system via OST, using the NetBackup GUI to configure disk pools from logical storage units (LSUs) on the DR Series system, and using the NetBackup GUI to create storage units using the disk pools on the DR Series system.

  • Page 148: Using Netbackup Cli To Add Dr Series System Name (Linux)

    Using NetBackup CLI to Add DR Series System Name (Linux) This topic describes how to use the NetBackup CLI to add the DR Series system name to each Linux-based media server you plan to use with the DR Series system.

  • Page 149: Configuring Netbackup For Optimized Synthetic Backups

    Optimized synthetic backups use an OST API to share data between images and synthesize the backup directly on the DR Series system without data being read to and written from the backup server. This saves time, expense, and space. The DR Series system supports optimized synthetic backups with NetBackup 7.1 and 7.5. The NetBackup storage server inherits the Optimized Image attribute during storage server configuration (nbdevconfig - creatests).

  • Page 150: Creating Disk Pools From Lsus

    Administrator console. Creating Storage Units Using the Disk Pool Use the NetBackup GUI to create storage units using the disk pools on the DR Series system. Log in to NetBackup, and complete the following tasks: In the main window of the NetBackup Administrator console, click Storage in the left navigation pane, and select Storage Units.

  • Page 151: Backing Up Data From A Dr Series System (Netbackup)

    Using NetBackup with the DR Series system, you can duplicate backup images from a disk pool on one DR Series system to a target disk pool (or a storage unit derived from it) that could be on the same DR Series system or on a different DR Series system.

  • Page 152: Using Backup Exec With A Dr Series System (Windows)

    The Setup Duplication Variables page is displayed. In the Setup Duplication Variables page, select the LSU that is the target DR Series system in the Storage unit drop- down list, and click OK. To monitor the status of any duplicate image operation, perform the following: a) Click Activity Monitor in the left navigation pane of the NetBackup Administrator console.

  • Page 153: Creating Backups On The Dr Series System Using Backup Exec

    In the left navigation pane of the Backup Job Properties page, select Destination, and select Device and Media. The Device and Media page is displayed. In the Device pane in the Device and Media page, select the DELL OST device in the drop-down list, and click Run Now to start the backup job.

  • Page 154: Optimizing Duplication Between Dr Series Systems Using Backup Exec

    Optimizing Duplication Between DR Series Systems Using Backup Exec The Backup Exec DMA can work with the DR Series system to replicate backups between two DR Series systems that are part of a defined source and target replication pair. This process uses the deduplication and replication features of the DR Series system via the OpenStorage Technology (OST).

  • Page 155: Understanding The Ost Cli Commands

    NOTE: If an OST client has four or more CPU cores, it is considered to be dedupe-capable. However, the OST client operating mode depends upon how it is configured in the DR Series system (Dedupe is the default OST client mode). If the administrator did not configure an OST client to operate in a specific mode and it is dedupe- capable, it will run in the Dedupe mode.

  • Page 156: Understanding Ost Plug-In Diagnostic Logs

    NOTE: The directory location, C:\ProgramData, is considered to be a hidden directory on Windows-based systems. However, you can copy and paste C:\ProgramData\Dell\DR\log\ into your Internet Explorer Address bar or you can enter this into the Windows command prompt window (Start→ All Programs→ Accessories→ Command Prompt).

  • Page 157: Rotating Ost Plug-In Logs For Linux

    The following example shows the process for collecting the OST diagnostic logs (the root user account shown represents one that resides on the media server, and is not to be confused with a root user account on the DR Series system): root@oca3400-74 ~]# ./Dell_diags –collect...

  • Page 158: Netbackup On Windows Media Servers

    Dell recommends that you collect logs from the following directories: /usr/openv/logs/nbemm and /usr/openv/ logs/nbrmms/. • Check for any core files that were generated on the NetBackup media server or on the DR Series system that can include: – Core files on a Linux NetBackup media server reside in the /usr/openv/netbackup/bin directory. Most of the NetBackup binaries that link with the OST plug-in are in this directory.
  • Page 159 Backup Exec job logs and command logs from the media server. • Any core files generated on the Backup Exec media server or on the DR Series system. • If a crash is involved, collect any mini-dump file(s) that reside in %ProgramFiles%\Symantec\Backup Exec\BEDBG.

  • Page 161: Troubleshooting And Maintenance

    This topic provides an overview of the basic troubleshooting and maintenance information that is available to help you better understand the current state of your DR Series system. The following list of information sources can aid you in understanding the current state of and maintaining your system: •...
  • Page 162 • Table 2 lists the DR Series System Event Messages by system event type (type 1 through 7): event messages that could be displayed during the course of backup, replication, deduplication, diagnostics, cleaner, DataCheck, maintenance, and OpenStorage Technology (OST) operations.
  • Page 163 Dell DR Series System Command Line Reference Guide . Storage usage is approaching the system capacity. Clean up the filesystem. If issue persists, contact Dell Support for possible assistance or intervention. Replication resync cannot proceed. Namespace limit has reached its maximum.
  • Page 164 • Check the power supplies. If there are no issues with the power supplies, have a service technician check the DR Series system appliance to see if it requires any servicing. number > failed. Storage Controller < Replace the RAID controller in the DR Series system.
  • Page 165 Description/Meaning or Action number > is missing. Storage Controller < Reinsert or replace the RAID controller in the DR Series system. number > has an illegal configuration. The expected number of virtual drives is < number >, and Storage Controller <...
  • Page 166 Super Capacitor on the NVRAM PCI Controller is missing. Replace the NVRAM PCI Controller. Failed to check software compatibility. Upgrade the DR Series system appliance (in the Software Upgrade page, click Start Upgrade). The system software package is incompatible with the Upgrade the DR Series system appliance (in the Software current software stack.
  • Page 167 Contact Dell Support for assistance or intervention. Data volume is not present. Check that all drives are Contact Dell Support for assistance or intervention. inserted and powered up. Filesystem server failed to start after multiple attempts. Contact Dell Support for assistance or intervention.
  • Page 168 Dell Support for assistance or intervention. Filesystem has reached the maximum allowable file(s) Please clean up the filesystem. If issue persists, contact Dell and directories limit. New file and directory creation Support for assistance or intervention. will be denied until sufficient space exists.
  • Page 169 Description/Meaning or Action One or more software packages are incompatible. Please upgrade the system appliance to rectify the issue. Upgrade the DR Series system appliance (in the Software Upgrade page, click Start Upgrade). System Event = Type 2 name > created successfully.
  • Page 170 System Event = Type 3 System is entering Maintenance mode. Informational message. No user intervention is required. Contact Dell Support for assistance or intervention. System is entering Support mode. Informational message. No user intervention is required. Contact Dell Support for assistance or intervention.
  • Page 171 Internal attributes of some files were found to be To find all files with corrupt attributes and to clear the state, corrupt. The DR Series system will not allow the please perform a maintenance scan using the DR Series setting or removing of Attributes or ACLs on files that system CLI maintenance --filesystem --start_scan command.
  • Page 172 System Event Message Description/Meaning or Action DR Series entering Maintenance mode due to corrupt The DR Series system should self-correct itself. If condition replication data operations log (oplog) for container persists, reduce number of inodes, or contact Dell Support for variable >.
  • Page 173 You have reached the threshold limit. Reduce the number of connections. variable >. CIFS server failed to start < Reboot the DR Series system. If issue persists, contact Dell Support for assistance or intervention. variable > times to container CIFS client connected <...
  • Page 174 Informational message. No user intervention is required. variable > milliseconds (ms). < Cleaner process encountered input/output (I/O) errors. Maintenance-based issue with the DR Series system. Check status using Maintenance mode or DR Series system CLI commands. Contact Dell Support as needed.
  • Page 175 Contact Dell Support for assistance or repair the filesystem. variable >. Count: < variable >. type: < For repairs, see About the DR Series Maintenance Mode. variable > contains negative stream Datastore < Informational message. No user intervention is required.
  • Page 176 System Event Message Description/Meaning or Action variable >. System name changed to < Informational message. No user intervention is required. variable >. System date changed to < Informational message. No user intervention is required. variable >. System time zone changed to < Informational message.
  • Page 177 Auto cleaning oldest package: < CIFS server cannot access file service. Contact Dell Support for intervention or assistance. Collect diagnostics log file bundle, and upload to Dell Support. variable > added to SNMP alert recipient list. Host < Informational message. No user intervention is required.
  • Page 178 One (or more) file(s) were deleted as part of the repair Informational message. No user intervention is required. To process. verify, please use the DR Series system CLI maintenance -- filesystem --repair_history verbose command. One or more file(s) were deleted as part of the repair Informational message.

  • Page 179: About The Diagnostics Service

    When the diagnostics log directory exceeds the maximum storage capacity, any log older than one hour is automatically deleted. The DR Series system GUI lets you download and save diagnostics log files to other systems on your network. The DR Series system also maintains a separate archive logs directory that collects other system-related information, and these archive logs are also automatically deleted when they exceed a maximum capacity.

  • Page 180: About The Dr Series System Maintenance Mode

    For more information, see the About the DR Series System Maintenance Mode In general, the DR Series system enters the Maintenance mode whenever the file system has encountered an issue that prevents it from operating normally. NOTE: You can use the Reason code information available in the Maintenance mode to call Dell Support. All maintenance must be conducted using the DR Series systems Command Line Interface.
  • Page 181 DR Series system is in its Maintenance mode. NOTE: When in Maintenance mode, image expiration fails because the DR Series system is in a read-only state. If this occurs, the DMA assumes that the backup images have expired. However, the DR Series system administrator may be unaware that the backup data images still reside on the DR Series system.

  • Page 182: Scheduling Dr Series System Operations

    By better scheduling when you run system operations, you can optimize your system resources and make it possible to achieve the best possible DR Series system performance. To do this, plan and schedule time periods in which to perform the following critical system operations: •...

  • Page 183: Displaying Cleaner Statistics

    Failure to follow this practice will affect the time required to complete the system operations and/or impact your DR Series system performance. Displaying Cleaner Statistics To display additional Cleaner statistics, you can use the DR Series system CLI stats --cleaner command to show the following categories of Cleaner statistics: •...
  • Page 184 4) • Current Run Phase 4 End Time (indicates date and time for end of current Cleaner process phase 4) Dell DR Series System Command Line Reference For more information about DR Series system CLI commands, see the Guide .

  • Page 185: Supported Ports In A Dr Series System

    Supported Ports in a DR Series System The following table lists the application and service ports found on a normally operating DR Series system. There may be other ports that are not listed here, that an administrator may need to open and enable to support specific operations across the network.
  • Page 186 Port Type Number Port Usage or Description SNMP daemon—used by Simple Network Management Protocol (SNMP) requests NFS status daemon...

  • Page 187: Getting Help

    Getting Help For more information about what you can attempt to resolve yourself or to get technical assistance from Dell for the DR Series system, see Troubleshooting and Maintenance, Troubleshooting Error Conditions,Before Contacting Dell Support, Contacting Dell. Before Contacting Dell Support...

  • Page 188: Contacting Dell

    To contact Dell for sales support, technical support, or customer service issues: Visit support.dell.com. Click to select your country/region at the bottom of the support.dell.com page. For the full listing of countries and regions, click All. The Choose a Country/Region page is displayed.

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