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Dell powervault md3000i Installation And Troubleshooting Manual

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Dell™ PowerVault™ MD3000i Storage
®
Arrays with Microsoft
Windows
®
Server
Failover Clusters
Hardware Installation and

Troubleshooting Guide

w w w . d e l l . c o m | s u p p o r t . d e l l . c o m

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  Summary of Contents for Dell powervault md3000i

  • Page 1: Troubleshooting Guide

    Dell™ PowerVault™ MD3000i Storage ® Arrays with Microsoft Windows ® Server Failover Clusters Hardware Installation and Troubleshooting Guide w w w . d e l l . c o m | s u p p o r t . d e l l . c o m...
  • Page 2 Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and trade names other than its own.
  • Page 3: Table Of Contents

    Contents Introduction ......Overview ......Cluster Solution .
  • Page 4 Cabling the Cluster in Network-Attached Redundant Configuration ....Connecting a PowerEdge Cluster to Multiple PowerVault MD3000i Storage Systems ..Preparing Your Systems for Clustering .
  • Page 5: Introduction

    Server Installation and Troubleshooting Guide. For a list of recommended operating systems, hardware components, and driver or firmware versions for your Dell Windows Server Failover Cluster, see the Dell Cluster Configuration Support Matrices located on the Dell High Availability Clustering website at www.dell.com/ha.
  • Page 6: Cluster Solution

    Cluster Solution Your iSCSI cluster implements a minimum of two node-clustering to a maximum of either eight nodes (for Windows Server 2003) or sixteen nodes (for Windows Server 2008) clustering and provides the following features: • Internet Small Computer System Interface (iSCSI) technology •...
  • Page 7: Cluster Nodes

    TCP/IP Offload Engine (TOE) NICs are also supported for iSCSI access traffic. For a list of recommended operating systems, hardware components, and driver or firmware versions for your Dell Windows Server Failover Cluster, see the Dell Cluster Configuration Support Matrices located on the Dell High Availability Clustering website at www.dell.com/ha.
  • Page 8: Cluster Storage

    Power and cooling Two integrated hot-pluggable power supply/cooling fan requirements modules. Physical disks At least two physical disks in the PowerVault MD3000i RAID enclosure. Multiple clusters and In a switched-attached configuration, clusters and stand-alone stand-alone systems systems can share one or more PowerVault MD3000i systems.
  • Page 9: Cluster Storage Management Software

    Modular Disk Storage Manager Client The software runs on the management station to centrally manage the PowerVault MD3000i RAID enclosures. You can use Dell PowerVault Modular Disk Storage Manager to perform tasks such as creating or managing RAID arrays, binding virtual disks, and downloading firmware.
  • Page 10 "Using Advanced (Premium) PowerVault Modular Disk Storage Manager Features" on page 54. See Installing and Configuring the Shared Storage System and the Dell PowerVault Modular Disk Storage Manager User’s Guide for more information about Modular Disk Storage Manager, Snapshot Virtual Disk, and Virtual Disk Copy.
  • Page 11: Supported Cluster Configurations

    Supported Cluster Configurations Figure 1-1. Non-Redundant Cluster Configuration public network private network cluster node 1 cluster node 2 Ethernet management port SAS out port Dell PowerVault MD3000i RAID enclosure (single controller) Introduction...
  • Page 12 Figure 1-2. Redundant Direct-Attached Cluster Configuration public network private network cluster node 1 cluster node 2 SAS out port (2) Ethernet management port (2) Dell PowerVault MD3000i RAID enclosure (dual controllers) Introduction...
  • Page 13 IP SAN (dual IP SAN (dual Gigabit Ethernet Gigabit Ethernet Ethernet switch) SAS out switch) management port (2) port (2) Dell PowerVault MD3000i RAID enclosure (dual controllers) NOTE: n=8 for Windows Server 2003 and n=16 for Windows Server 2008 Introduction...
  • Page 14: Other Documents You May Need

    NOTE: To configure Dell blade system modules in a Dell PowerEdge Cluster, see the Using Dell Blade Servers in a Dell PowerEdge High Availability Cluster document located on Dell Support website at support.dell.com. •...
  • Page 15 RAID systems. • The Dell PowerVault MD Systems Support Matrix provides information on supported software and hardware for PowerVault MD systems. This document can be located on the Dell Support website at support.dell.com.
  • Page 16 Introduction...
  • Page 17: Cabling Your Cluster Hardware

    Figure 2-1 and Figure 2-2 illustrate recommended methods for power cabling of a cluster solution consisting of two Dell™ PowerEdge™ systems and one storage system. To ensure redundancy, the primary power supplies of all the components are grouped onto one or two circuits and the redundant power supplies are grouped onto a different circuit.
  • Page 18 Figure 2-1. Power Cabling Examples With One Power Supply in the PowerEdge Systems redundant power supplies on primary power supplies on one one AC power strip (or on one AC power strip (or on one AC AC PDU [not shown]) PDU [not shown]) NOTE: This illustration is intended only to demonstrate the power distribution of the...
  • Page 19 Figure 2-2. Power Cabling Example With Two Power Supplies in the PowerEdge Systems primary power supplies on one redundant power supplies on AC power strip (or on one AC one AC power strip (or on one PDU [not shown]) AC PDU [not shown]) NOTE: This illustration is intended only to demonstrate the power distribution of the components.
  • Page 20: Cabling Your Public And Private Networks

    Cabling Your Public and Private Networks The network adapters in the cluster nodes provide at least two network connections for each node. These connections are described in Table 2-1. Table 2-1. Network Connections Network Connection Description Public Network All connections to the client LAN. At least one public network must be configured for mixed mode (public mode and private mode) for private network failover.
  • Page 21: Cabling Your Public Network

    Figure 2-3. Example of Network Cabling Connection public network private network adapter private network cluster node 1 cluster node 2 Cabling Your Public Network Any network adapter supported by a system running TCP/IP may be used to connect to the public network segments. You can install additional network adapters to support additional public network segments or to provide redundancy in the event of a faulty primary network adapter or switch port.
  • Page 22: Using Dual-Port Network Adapters For Your Private Network

    Table 2-2. Private Network Hardware Components and Connections Method Hardware Components Connection Network switch Fast Ethernet or Gigabit Connect standard Ethernet Ethernet network cables from the network adapters and switches. adapters in both cluster nodes to a Fast Ethernet or Gigabit Ethernet switch.
  • Page 23: Cabling The Storage Systems

    NOTE: To configure Dell blade system modules in a Dell PowerEdge Cluster, see Using Dell Blade Servers in a Dell PowerEdge High Availability Cluster located on Dell Support website at support.dell.com. NOTE: For more details on storage hardware settings and descriptions, see Dell PowerVault™...
  • Page 24 Dell PowerVault MD3000i RAID enclosure (single controller) NOTE: Multipath is required for this configuration. NOTE: Only PowerVault MD3000i with one controller is supported in this configuration. NOTE: The SAS out port provides SAS connection for cabling to MD1000 Expansion Enclosure.
  • Page 25: Cabling The Cluster In Direct-Attached Redundant Configuration

    Cabling the Cluster in Direct-Attached Redundant Configuration In the direct-attached redundant configuration, each cluster node is directly attached to the PowerVault MD3000i RAID controller modules using two network cables, and either one dual-port NIC or two single-port NICs. If a component fails in the storage path such as the port, the cable, or the...
  • Page 26 1 cluster node 2 SAS out port (2) Ethernet management port (2) Dell PowerVault MD3000i RAID enclosure (dual controllers) NOTE: The SAS out port provides SAS connection for cabling to MD1000 expansion enclosure(s). Cabling Your Cluster Hardware...
  • Page 27: Cabling The Cluster In Network-Attached Redundant Configuration

    Cabling the Cluster in Network-Attached Redundant Configuration In the network-attached redundant configuration, each cluster node attaches to the storage system using redundant IP storage area network (SAN) industry-standard 1 Gb Ethernet switches, and either with one dual-port iSCSI NIC or two single-port iSCSI NICs. If a component fails in the storage path such as the iSCSI NIC, the cable, the switch, or the storage controller, the multipath software automatically re-routes the I/O requests to the alternate path so that the storage array continues to operate without...
  • Page 28 SAS out switch) management port (2) port (2) Dell PowerVault MD3000i RAID enclosure (dual controllers) NOTE: n=8 for Windows Server 2003 and n=16 for Windows Server 2008 NOTE: The SAS out port provides SAS connection for cabling to MD1000 expansion enclosure(s).
  • Page 29: Connecting A Poweredge Cluster To Multiple Powervault Md3000I Storage Systems

    Connecting a PowerEdge Cluster to Multiple PowerVault MD3000i Storage Systems You can increase your cluster storage capacity by attaching multiple storage systems to your cluster using redundant network switches. The PowerEdge cluster systems support configurations with multiple PowerVault MD3000i storage systems attached to clustered systems. In this scenario, the Failover Cluster software can fail over disk drives in any cluster-attached shared storage system between the cluster nodes.
  • Page 30 When attaching multiple PowerVault MD3000i storage systems with your cluster, the following rules apply: • A maximum of four Power Vault MD3000i storage systems per cluster. • The shared storage systems and firmware must be identical. Using dissimilar storage systems and firmware for your shared storage is not supported.
  • Page 31: Preparing Your Systems For Clustering

    NOTE: For more information on step 3 to step 7 and step 10 to step 12, see the "Preparing your systems for clustering" section of the Dell Failover Clusters with Microsoft Windows Server 2003 Installation and Troubleshooting Guide or the Dell Failover Clusters with Microsoft Windows Server 2008 Installation and Troubleshooting Guide located on the Dell Support website at support.dell.com.
  • Page 32 NOTE: You can configure the cluster nodes as Domain Controllers. For more information, see the "Selecting a Domain Model" section of the Dell Failover Clusters with Microsoft Windows Server 2003 Installation and Troubleshooting Guide or the Dell Failover Clusters with Microsoft Windows Server 2008 Installation and Troubleshooting Guide located on the Dell Support website at support.dell.com.
  • Page 33: Installation Overview

    Installation Overview Each node in your Dell Windows Server failover cluster should have the same release, edition, service pack, and processor architecture of the Windows Server operating system installed. For example, all nodes in your cluster may be configured with Windows Server 2003 R2, Enterprise x64 Edition.
  • Page 34: Installing The Iscsi Nics

    For a list of recommended operating systems, hardware components, and driver or firmware versions for your Dell Windows Server Failover Cluster, see the Dell Cluster Configuration Support Matrices located on the Dell High Availability Clustering website at www.dell.com/ha.
  • Page 35: Installing The Microsoft Iscsi Software Initiator

    To install and configure the PowerVault MD3000i RAID enclosure in your cluster: 1 Ensure that the PowerVault MD3000i has the latest firmware. See your PowerVault MD3000i document for more information. 2 Install the Host Software (multipath software and Modular Disk Storage Manager Agent) on each cluster node, and Modular Disk Storage Manager Client software on the management station.
  • Page 36 Alone to the Cluster.reg file into the registry again. NOTE: If you are reconfiguring a cluster node into a standalone host, you must merge the PowerVault MD3000i Cluster to Stand Alone.reg file located in the windows\utility directory of the Dell PowerVault MD3000i Resource CD into the host registry.
  • Page 37: Installing And Configuring The Shared Storage System

    Installing and Configuring the Shared Storage System This section provides information for installing and configuring the shared storage systems. Setting up Your Storage Array The Perform Initial Setup Tasks link located on the Summary tab provides links to the basic steps you should follow when initially setting up a storage array in PowerVault Modular Disk Storage Manager.
  • Page 38 7 View and Enable Premium Features (Optional) — If you have purchased premium features, including Snapshot Virtual Disks and virtual disk copies, check the premium features that are currently available and enable them if they are turned off. See Using Advanced (Premium) PowerVault Modular Disk Storage Manager Features for more information.
  • Page 39 Table 3-1. Standard Terminology Used in iSCSI Configuration Term Definition CHAP (Challenge An optional security protocol used to control access to an Handshake iSCSI storage system by restricting use of the iSCSI data Authentication Protocol) ports on both the host server and storage array. For more information on the types of CHAP authentication supported, see "Creating a Host Group"...
  • Page 40 Table 3-2 contains the sequence of steps for configuring each specific iSCSI connections and where it occurs. The following subsections describe each of the steps in more detail. Table 3-2. Host Server vs. Storage Array This step is performed on the HOST This step is performed on the STORAGE SERVER using the Microsoft iSCSI ARRAY using MD Storage Manager:...
  • Page 41 Default Management Port Settings By default, the storage array management ports will be set to DHCP configuration. If the controller(s) on your storage array is unable to get IP configuration from a DHCP system, it will timeout and revert to a default static IP address.
  • Page 42 Manual Storage Array Discovery 1 Launch MD Storage Manager. If this is the first storage array to be set up, the Add New Storage Array window appears. 2 Select Manual and click OK. 3 Select Out-of-band management and enter the host server name(s) or IP address(es) of the iSCSI storage array controller.
  • Page 43 Table 3-3. Initial Storage Array Setup Tasks Task Purpose Information Needed Rename the storage To provide more a A unique, clear name with array. meaningful name than the no more than 30 software-assigned label of characters that may If you need to physically Unnamed.
  • Page 44 Table 3-3. Initial Storage Array Setup Tasks (continued) Task Purpose Information Needed Set up alert To arrange to notify E-mail — Sender notifications. individuals (by e-mail) and/or (sender’s SMTP gateway storage management stations and e-mail address) and • Set up e-mail alerts. (by SNMP) when a storage recipients (fully qualified •...
  • Page 45 Ipv6 addresses (Default IP addresses): Controller 0, Port 0: IP Configuration: Obtain configuration automatically Port: 3260 Controller 0, Port 1: IP Configuration: Obtain configuration automatically Port: 3260 Controller 1, Port 0: IP Configuration: Obtain configuration automatically Port: 3260 Controller 1, Port 1: IP Configuration: Obtain configuration automatically Port: 3260 NOTE: By default, the gateway value is not set.
  • Page 46 Router IP address: XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX Where 'X' is a hexadecimal number between 0 and F. The following settings are available (depending on your specific configuration) by clicking the Advanced button: • Virtual LAN (VLAN) support A VLAN is a network of different systems that behave as if they are connected to the same segments of a local area network (LAN) and are supported by the same switches and routers.
  • Page 47 Perform Target Discovery From the iSCSI Initiator This step identifies the iSCSI ports on the storage array to the host server. To perform target discovery from the iSCSI initiator: 1 Click Start→ Programs→ Microsoft iSCSI Initiator. 2 Click the Discovery tab. 3 Under Target Portals, click Add and enter the IP address or DNS name of the iSCSI port on the storage array.
  • Page 48 Configure Host Access This section helps you configure the connection between the host servers and the virtual disks on the storage array. You must perform this step before mapping virtual disks to host servers, or whenever you connect new host servers to the storage array.
  • Page 49 Automatic Configuration • Manual Configuration See the Dell PowerVault Modular Disk Storage Manager User’s Guide for more information on how to create Disk Groups and Virtual Disks. It is recommended that you create at least one virtual disk for each application.
  • Page 50 The NVSRAM file is located at the \utility\NVSRAM\ directory on the PowerVaultMD3000i Resource Media, with a prefix of Non-redundant- MSCS. To load the NVSRAM file to the PowerVault MD3000i RAID enclosure, from the storage management station, open the PowerVault Modular Disk Storage Manager Client.
  • Page 51 Configuring the RAID Level for the Shared Storage Subsystem The virtual disks in your shared storage subsystem must be configured into disk groups or virtual disks using the Dell PowerVault Modular Storage Manager software. All virtual disks, especially if they are used for the quorum resource, should be bound and should incorporate the appropriate RAID level to ensure high availability.
  • Page 52 Naming and Formatting Drives on the Shared Storage System Each virtual disk being created in the PowerVault Modular Disk Storage Manager becomes a physical disk in Windows Disk Management. For each physical disk, perform the following: • Write the disk signature •...
  • Page 53 5 In the dialog box, create a partition the size of the entire drive (the default) and then click OK. NOTE: A virtual disk that is mapped or assigned from the storage system to a cluster node(s) is represented as a physical disk within the Windows operating system on each node.
  • Page 54 For instructions about this process, see the Premium Feature Activation card that shipped along with your Dell PowerVault MD3000i storage system. These premium features increase the high availability for your cluster solution.
  • Page 55 create a snapshot for your cluster disk. The Snapshot Virtual Disk can be mapped to the primary node (the node owning the source disk) or the secondary node (the node not owning the source disk) for backup, testing, or data processing. NOTICE: Avoid mapping the Snapshot Virtual Disk to more than one node in the cluster at any point of time.
  • Page 56 Virtual Disk Copy Virtual Disk Copy generates a full copy of data from the source virtual disk to the target virtual disk in a storage array. You can use Virtual Disk Copy to back up data, copy data from disk groups that use smaller-capacity physical disks to disk groups using greater-capacity physical disks, or restore Snapshot Virtual Disk data to the source virtual disk.
  • Page 57 Target CHAP In target CHAP , the storage array authenticates all requests for access issued by the iSCSI initiator(s) on the host server through a CHAP secret. To set up target CHAP authentication, you enter a CHAP secret on the storage array, then configure each iSCSI initiator on the host server to send that secret each time it attempts to access the storage array.
  • Page 58 Setting Up CHAP The next two steps in your iSCSI configuration, "Configuring CHAP Authentication on the Storage Array (Optional)" on page 58 and "Configuring CHAP Authentication on the Host Server (Optional)" on page 59, offer step-by-step procedures for setting up CHAP on your storage array and host server.
  • Page 59 2 To configure a CHAP secret, select CHAP and select CHAP Secret. 3 Enter the Target CHAP secret (or Generate Random Secret), confirm it in Confirm Target CHAP Secret, and click OK. Although the storage array allows sizes from 12 to 57 characters, many initiators only support CHAP secret sizes up to 16 characters (128-bit).
  • Page 60 3 If you are using mutual CHAP authentication: Click the General tab. Select Secret. At the Enter a secure secret window, enter the mutual CHAP secret you entered for the storage array. 4 Click the Discovery tab. 5 Under Target Portals, select the IP address of the iSCSI port on the storage array and click Remove.
  • Page 61 Connect to the Target Storage Array From the Host Server 1 Click Start→ Programs→ Microsoft iSCSI Initiator. 2 Click the Targets tab. If previous target discovery was successful, the iqn of the storage array should be displayed under Targets. 3 Click Log On. 4 Select Automatically restore this connection when the system boots.
  • Page 62 NOTE: The management station you are using must be configured for network communication to the same IP subnet as the PowerVault MD3000i iSCSI host ports. 1 Establish an iSCSI session to the MD3000i RAID storage array. 2 Restart the SMagent service.
  • Page 63: Installing And Configuring A Failover Cluster

    For more information on deploying your cluster with a specific variant of the Windows Server operating system (for example: Windows Server 2003 or Windows Server 2008), see the Dell Failover Clusters with Microsoft Windows Server Installation and Troubleshooting Guide on the Dell Support website at support.dell.com.
  • Page 64 Preparing Your Systems for Clustering...
  • Page 65: A Troubleshooting

    Troubleshooting This appendix provides troubleshooting information for your cluster configurations. Table A-1 describes general cluster problems you may encounter and the probable causes and solutions for each problem. Table A-1. General Cluster Troubleshooting Problem Probable Cause Corrective Action The nodes cannot The storage system is not Ensure that the cables are access the storage...
  • Page 66 Table A-1. General Cluster Troubleshooting (continued) Problem Probable Cause Corrective Action One of the nodes takes The node-to-node Check the network cabling. a long time to join the network has failed due to Ensure that the node-to-node cluster. a cabling or hardware interconnection and the public failure.
  • Page 67 Table A-1. General Cluster Troubleshooting (continued) Problem Probable Cause Corrective Action Attempts to connect The Cluster Service has Verify that Cluster Service is to a cluster using not been started. A cluster running and that a cluster has Cluster Administrator has not been formed on been formed.
  • Page 68 Cluster installation. about assigning the network IPs, see "Assigning Static IP Addresses to Your Cluster Resources and Components"S in the Dell Failover Clusters with Microsoft Windows Server 2003 Installation and Troubleshooting Guide. The private (point-to- Ensure that all systems are...
  • Page 69 Table A-1. General Cluster Troubleshooting (continued) Problem Probable Cause Corrective Action Unable to add a node The new node cannot Ensure that the new cluster node to the cluster. access the shared disks. can enumerate the cluster disks The shared disks are using Windows Disk enumerated by the Administration.
  • Page 70 Table A-1. General Cluster Troubleshooting (continued) Problem Probable Cause Corrective Action Microsoft Cluster does The Windows Internet Perform the following steps: not operate correctly Connection Firewall is On the Windows desktop, on a cluster running enabled, which may right-click My Computer and Windows Server 2003 conflict with Microsoft click Manage.
  • Page 71 PowerVault MD3000i controllers when a Stand Alone to Cluster.reg file storage path fails. located in the windows\utility directory of the Dell PowerVault MD3000i Resource CD into the registry of each node.
  • Page 72: Troubleshooting Tools

    Table A-1. General Cluster Troubleshooting (continued) Problem Probable Cause Corrective Action Unable to assign the The snapshot virtual disk Unmap the snapshot virtual disk drive letter to the has been erroneously from the node not owning the snapshot virtual disk. mapped to the node that source disk, then assign it to the does not own the source...
  • Page 73 • Status Icons - Status icons identify the six possible health status conditions of the storage array. For every non-Optimal status icon, use the Recovery Guru to detect and troubleshoot the problem. • Optimal - Every component in the managed array is in the desired working condition.
  • Page 74: Known Issues

    Cluster(s) and application(s) using the virtual disks on an PowerVault MD3000i storage array may fail while performing an online upgrade of the storage array. Access to the virtual disks on the PowerVault MD3000i may be temporarily lost. To resolve this issue you must take the cluster nodes offline before upgrading the PowerVault MD3000i storage array controller firmware.
  • Page 75: B Cluster Data Form

    Cluster Data Form You can attach the following form in a convenient location near each cluster node or rack to record information about the cluster. Use the form when you call for technical support. Table B-1. Cluster Configuration Information Cluster Information Cluster Solution Cluster name and IP address...
  • Page 76 Table B-3. Additional Network Information Additional Networks Table B-4. Storage Array Configuration Information Array Array Service Tag IP Address Number of Attached DAEs Virtual Disks Cluster Data From...
  • Page 77: Iscsi Configuration Worksheet

    iSCSI Configuration Worksheet iSCSI Configuration Worksheet...
  • Page 78 iSCSI Configuration Worksheet...
  • Page 79: Index

    Index alerts, 44 MSCS installing and configuring, 62 CHAP, 56 mutual, 56 operating system target, 56 installing, 33 initial storage array setup, 39 password, 43 alerts, 44 post-installation installing iSCSI configuration, 43 Windows host and server, 40 PowerVault 22xS storage system iSCSI, 38 clustering, 52 terminology, 38...
  • Page 80 Index...