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Dell OpenManage Server Administrator Storage Management User's Guide
Use this window to view information about the virtual disks and execute virtual disk tasks.
The virtual disk properties can vary depending on the model of the controller. Virtual disk properties may include:
Property |
Definition |
---|---|
Status
| These icons represent the severity or health of the storage component. See "Storage Component Severity" for more information. |
Name | This property displays the virtual disk name. |
State | This property displays the current status of the virtual disk. Possible values are: Ready The virtual disk is functioning normally. Degraded A physical disk in a redundant virtual disk is not online. Resynching A consistency check is being performed on the virtual disk. On the PERC 3/Si, 3/Di, and CERC SATA1.5/6ch controllers, reconfiguring a concatenated virtual disk to a RAID 1 may cause the virtual disk to be in Resynching state. Performing a "Cancel Check Consistency" on a virtual disk while it is in Resynching state will cause the virtual disk to be in a Failed Redundancy state. See "Considerations for Concatenated to RAID 1 Reconfiguration on PERC 3/Si, 3/Di, and CERC SATA1.5/6ch Controllers" for more information. Resynching Paused A consistency check has been paused on the virtual disk. Regenerating A physical disk in the virtual disk is rebuilding. Reconstructing The virtual disk configuration has changed. The physical disks included in the virtual disk are being modified to support the new configuration. Failed The virtual disk has suffered a failure of one or more components and is no longer functioning. |
Failed Redundancy This state is displayed when the initial consistency check for the virtual disk is cancelled or is not successful. This state may also be displayed when a RAID 1, RAID 10 or RAID 1-concatenated virtual disk suffers a physical disk failure. In addition, there are other conditions related to disk failures and the firmware that can cause a virtual disk to display a Failed Redundancy state. When a virtual disk is in Failed Redundancy state, performing a "Check Consistency" may return the virtual disk to a Ready state. This state only applies to virtual disks on a PERC 3/Si, 3/Di, CERC SATA1.5/6ch, and CERC SATA1.5/2s controller. | |
Background Initialization A background initialization is being performed on the virtual disk. Formatting The virtual disk is being formatted. Formatting applies to the PERC 3/Si, 3/Di, and CERC SATA1.5/6ch controllers. See "Format and Initialize; Slow and Fast Initialize" for more information. Initializing The virtual disk is being initialized. Initialization applies to the PERC 3/SC, 3/DCL, 3/DC, 3/QC, 4/SC, 4/DC, 4e/DC, 4/Di, 4e/Si, 4e/Di, and CERC ATA100/4ch controllers. See "Format and Initialize; Slow and Fast Initialize" for more information. On some controllers, the virtual disk state is not updated until the controller performs an I/O operation. See "I/O and Reboot Requirements for Detecting Physical Disk Status Changes" for more information. | |
Layout | This property displays the RAID level. |
Size | This property displays the total capacity of the virtual disk. The algorithm for calculating the virtual disk size rounds a value of 0.005 or less down to 0.00 and a value between 0.006 and 0.009 up to 0.01. For example, a virtual disk size of 819.725 will be rounded down to 819.72. A virtual disk size of 819.726 will be rounded up to 819.73. |
Device Name | This property displays the operating system device name for this object. |
Type | This property displays the technology that the physical disks included in the virtual disk are using. Possible values are: SCSI Small Computer System Interface SAS Serial Attached SCSI SATA Serial Advanced Technology Attachment (ATA) |
Read Policy | This property displays the read policy that the controller is using for this virtual disk. See "RAID Controller Read, Write, and Cache Policy". |
Write Policy | This property displays the write policy that the controller is using for this virtual disk. See "RAID Controller Read, Write, and Cache Policy". |
Cache Policy | This property displays the cache policy that the controller is using for this virtual disk. See "RAID Controller Read, Write, and Cache Policy". |
Stripe Size | This property displays the stripe size of the virtual disk. |
Do the following to execute a virtual disk drop-down menu task:
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NOTE: Different controllers support different features. For this reason, the tasks displayed on the Tasks drop-down menu can vary depending on which controller is selected in the tree view. If no tasks can be performed because of controller or system configuration limitations, then the Tasks drop-down menu displays No Task Available. |
Use the Reconfigure task to change the virtual disks properties. For example, you can use this task to add physical disks or change the RAID level. See "Virtual Disk Task: Reconfigure (Step 1 of 3)" for more information.
Use the Format, Initialize, Slow Initialize, or Fast Initialize task to erase the files and remove the file systems on a virtual disk. Some controllers require that you initialize a virtual disk before it can be used. See "Format and Initialize; Slow and Fast Initialize" for more information.
Use the Cancel Format or Cancel Initialize task to cancel the virtual disk format or initialize while it is in progress. For more information on virtual disk format or initialize, see "Format and Initialize; Slow and Fast Initialize".
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NOTE: The Cancel Initialize task only applies to the PERC 3/SC, 3/DCL, 3/DC, 3/QC, 4/SC, 4/DC, 4e/DC, 4/Di, 4e/Si, 4e/Di, and CERC ATA100/4ch controllers. |
On PERC 3/SC, 3/DCL, 3/DC, 3/QC, 4/SC, 4/DC, 4e/DC, 4/Di, 4e/Si, and 4e/Di controllers, background initialization of redundant virtual disks begins automatically after the virtual disk is created. Because the initialization is run in the background, other processes can continue while the initialization completes.
The background initialization of a redundant virtual disk prepares the virtual disk for parity information and improves write performance. It is important that the background initialization be allowed to run to completion. You can, however, cancel the background initialization. When you do so, the controller will restart the background initialization at a later time. See "Background Initialization on PERC 3/SC, 3/DCL, 3/DC, 3/QC, 4/SC, 4/DC, 4e/DC, 4/Di, 4e/Si, and 4e/Di Controllers" for more information.
Use the Cancel Background Initialization task to cancel the virtual disk initialization.
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NOTE: On the PERC 3/SC, 3/DCL, 3/DC, 3/QC, 4/SC, 4/DC, 4e/DC, 4/Di, 4e/Si, and 4e/Di controllers, the controller firmware uses the rebuild rate setting to control the system resource allocation for the Background Initialization task. See "Set Rebuild Rate" for more information. |
Use the Restore Dead Segments task to recover data from a RAID-5 virtual disk that has been corrupted. The Restore Dead Segments task attempts to reconstruct data from a corrupt portion of a physical disk included in a RAID-5 virtual disk. The Restore Dead Segments task uses the parity or redundant information to reconstruct the lost data. This task is not always able to recover lost data.
Use the Delete task to destroy all data on the virtual disk. See "Virtual Disk Task: Delete" for more information.
Use the Assign Dedicated Hot Spare task to assign a disk as a backup for a single virtual disk. See "Assign and Unassign Dedicated Hot Spare" for more information.
Use the Check Consistency task to verify the accuracy of the redundant (parity) information. This task only applies to redundant virtual disks. When necessary, the Check Consistency task rebuilds the redundant data. If the virtual disk is in a Failed Redundancy state, running a check consistency may be able to return the virtual disk to a Ready state.
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NOTE: On the PERC 3/SC, 3/DCL, 3/DC, 3/QC, 4/SC, 4/DC, 4e/DC, 4/Di, 4e/Si, 4e/Di, and CERC ATA100/4ch controllers, the controller firmware uses the rebuild rate setting to control the system resource allocation for the Check Consistency task. See "Set Rebuild Rate" for more information. |
Use the Cancel Check Consistency task to stop a check consistency operation that is in progress.
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NOTE: On the PERC 3/Si, 3/Di, and CERC SATA1.5/6ch controllers, reconfiguring a concatenated virtual disk to a RAID 1 may cause the virtual disk to be in Resynching state. Performing a "Pause Check Consistency" or a "Cancel Check Consistency" on a virtual disk while it is in Resynching state will cause the virtual disk to be in a Failed Redundancy state. See "Considerations for Concatenated to RAID 1 Reconfiguration on PERC 3/Si, 3/Di, and CERC SATA1.5/6ch Controllers" for more information. |
Use the Pause Check Consistency task to pause a check consistency while it is in progress.
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NOTE: The Pause Check Consistency task updates the virtual disk State property to Resynching Paused immediately. The Progress property may continue to increment for up to three seconds. This time delay occurs because the polling task may take up to three seconds to query the task information and update the display. |
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NOTE: On the PERC 3/Si, 3/Di, and CERC SATA1.5/6ch controllers, reconfiguring a concatenated virtual disk to a RAID 1 may cause the virtual disk to be in Resynching state. Performing a "Pause Check Consistency" or a "Cancel Check Consistency" on a virtual disk while it is in Resynching state will cause the virtual disk to be in a Failed Redundancy state. See "Considerations for Concatenated to RAID 1 Reconfiguration on PERC 3/Si, 3/Di, and CERC SATA1.5/6ch Controllers" for more information. |
Use the Resume Check Consistency task to resume a check consistency after it has been paused.
The Blink and Unblink tasks blink or unblink the lights on the physical disks included in the virtual disk. See "Blink and Unblink" for more information.
Use the Rename task to change the virtual disk's name. See "Virtual Disk Task: Rename" for more information.
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NOTE: On the CERC SATA1.5/2s controller, you cannot change the default name of a concatenated virtual disk. |
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NOTE: Renaming a virtual disk generates alert "2159". On the PERC 3/Si, 3/Di, CERC SATA1.5/6ch, and CERC SATA1.5/2s controllers, alert "2159" displays the new virtual disk name. On the PERC 3/SC, 3/DCL, 3/DC, 3/QC, 4/SC, 4/DC, 4e/DC, 4/Di, 4/IM, 4e/Si, 4e/Di, and CERC ATA100/4ch controllers, alert "2159" displays the original virtual disk name. |
Use the Cancel Rebuild task to cancel a rebuild while it is in progress.
Use the Change Policy task to change a virtual disk's read, write, or cache policy. Changes to the read, write, and cache policy only apply to the virtual disk that you have selected. This task does not change the policy for all virtual disks on the controller. See "RAID Controller Read, Write, and Cache Policy" for more information.
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