Dell Computer Drive manual Troubleshooting

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dMake sure that the applicable network configuration tasks have been done (for example, the IP addresses have been assigned to each controller).

5Make sure that the controller firmware is compatible with the MD Storage Manager on your management station. If the controller firmware was upgraded, the MD Storage Manager might not have access to the storage array. A new version of MD Storage Manager might be needed to manage the storage array with the new version of the controller firmware.

If this problem exists, see the Dell support website at support.dell.com.

6Look to see if there is too much network traffic to one or more controllers. This problem corrects itself because the MD Storage Manager tries to re- establish communication with the controllers in the storage array at regular times. If the storage array was unresponsive and a subsequent try to connect to the storage array succeeds, the storage array becomes responsive.

7For an out-of-band storage array, look to see if management operations are taking place on the storage array from other storage management stations. The type of management operations being done and the number of management sessions taking place together establish the number of TCP/IP connections made to a controller. When the maximum number of TCP/IP connections have been made, the controller stops responding. This problem corrects itself because after some TCP/IP connections complete, the controller then becomes responsive to other connection tries.

8If the storage array is still unresponsive, problems might exist with the controllers.

If these problems exist, see the Dell support website at support.dell.com.

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Contents Dell PowerVault Modular Disk Storage Manager User’s Guide W . d e l l . c o m s u p p o r t . d e l l . c o mFebruary Contents Connecting the Serial Cable System Setup for Password Reset Viewing iSCSI Statistics and Setting Baseline Disk Groups and Virtual Disks Premium Feature-Snapshot Virtual Disks Troubleshooting Problems 101 Contents About This Guide User InterfaceSummary Tab Configure TabModify Tab ISCSI Tab Tools TabSupport Tab Other Information You May Need View online help View the event logAccess Virtual Disk About Your Storage ArrayOut-of-Band and In-Band Management Automatic Discovery of Storage Arrays Adding Storage ArraysManual Addition of a Storage Array Naming Storage Arrays Removing Storage ArraysSetting Up Your Storage Array Initial setup tasks includeStorage Array To set, change, or remove a password for a storage array Setting a PasswordStorage Array Support Data Connecting the Serial Cable Resetting a PasswordPassword Guidelines Consider these guidelines when you create a passwordSystem Setup for Password Reset Microsoft Windows Operating SystemsReset Password Configuring E-mail Alerts Configuring Alert NotificationsChanging Expansion Enclosure ID Numbers Storage Array Configuring Snmp Alerts Starting or Restarting the Host-Agent Software in Windows Starting or Restarting the Host-Agent Software in LinuxStorage Array Storage Array Using iSCSI Using the iSCSI TabEntering Mutual Authentication Permissions Changing the iSCSI Target AuthenticationCreating Chap Secrets Valid Ascii Characters for Chap Secrets Space Using iSCSI Changing the iSCSI Target Discovery Changing the iSCSI Target IdentificationType the alias in the iSCSI target alias field and click OK Configuring the MD3000i iSCSI Host Ports Advanced iSCSI Host Ports SettingsLowest priority default Viewing or Ending an iSCSI SessionViewing iSCSI Statistics and Setting Baseline Statistics Edit, Remove, or Rename Host Topology Host Topology Actions Desired Action Using iSCSI Event Monitor Service Status area, click Start LinuxEnabling the Event Monitor Disabling the Event Monitor Configuring Host Access About Your HostAutomatic Configuration Manual Configuration using SAS HBAManual Configuration using iSCSI Click NextRemoving Host Access Creating a Host Group Host GroupsAdding a Host to a Host Group Removing a Host From a Host Group Moving a Host to a Different Host GroupHost Topology Removing a Host GroupHost Context Agent Data Path Protection Create a virtual disk and map it to LUN Reboot the hostFailover with Red Hat Enterprise Linux About Your Host Disk Groups and Virtual Disks Creating Disk Groups and Virtual Disks Manual Configuration Disk Groups and Virtual Disks Disk Groups and Virtual Disks Automatically Configuring Hot Spares Hot Spare Drive ProtectionManually Configuring Hot Spares Click OK in the dialog boxCreating Host-to-Virtual Disk Mappings Host-to-Virtual Disk MappingModifying and Removing Host-to-Virtual Disk Mapping Storage Partitioning Changing Controller Ownership of the Virtual DiskDisk Group Expansion Disk Group and Virtual Disk ExpansionVirtual Disk Expansion Errors discovered by the media scan include Changing Media Scan SettingsStorage Array Media Scan Virtual Disk Service Microsoft ServicesSuspending the Media Scan Volume Shadow-Copy Service Disk Groups and Virtual Disks Premium Feature-Snapshot Virtual Disks Creating a Snapshot Virtual Disk Using the Simple Path About the Simple PathHost-to-Virtual Disk Mapping The default setting is Map now SMrepassist -ffilename-identifier Creating the Snapshot Using the Simple Path Snapshot Virtual Disks Creating a Snapshot Virtual Disk Using the Advanced Path About the Advanced PathSnapshot Virtual Disks SMrepassist -ffilename-identifier Creating the Snapshot Using the Advanced Path Snapshot Virtual Disks Specifying Snapshot Virtual Disk Names Source-virtual disk-name-sequence-numberSnapshot Repository Capacity Re-creating Snapshot Virtual Disks Disabling a Snapshot Virtual DiskTo disable a snapshot virtual disk Preparing Host Servers to Re-create a Snapshot Virtual DiskRe-creating a Snapshot Virtual Disk Premium Feature-Virtual Disk Copy Creating a Virtual Disk Copy for an Mscs Shared Disk Reasons to use virtual disk copy include the followingIf you are using the target virtual disk for backup purposes Virtual Disk Read/Write PermissionsVirtual Disk Copy Restrictions Creating a Virtual Disk Copy Preparing Host Servers to Create a Virtual Disk CopyChoose the target virtual disk Copying the Virtual DiskClick Next at the bottom Setting Copy Priority Storage Array Performance During Virtual Disk CopyTo stop a virtual disk copy, complete the following steps Stopping a Virtual Disk CopyRecopying a Virtual Disk Click Yes to stop the virtual disk copyPreparing Host Servers to Recopy a Virtual Disk Recopying the Virtual Disk Removing Copy Pairs Virtual Disk Copy Firmware Downloads Downloading RAID Controller and Nvsram PackagesDownloading Both RAID Controller and Nvsram Firmware Downloading Only Nvsram Firmware Downloading Non-redundant Mscs Nvsram FirmwareDownloading Physical Disk Firmware Downloading EMM Firmware 100 Storage Array Profile Troubleshooting ProblemsRecovery Guru Device Health ConditionsSMrepassist Utility 102 Click Browse Support Information Package 103 Recovering from an Unidentified Storage Array Unidentified DevicesPing host-name-or-IP-address-of-the-host 105Troubleshooting Inserting an EMM into an Expansion Enclosure Removing an EMM from the Expansion Enclosure107 Removing and Inserting Physical Disks MD3000 Maintenance Considerations108 109 110 Index 111Index 113 114