Users Guide
Virtual Disk Tasks
Do the following to execute a virtual disk drop-down menu task:
1. Expand the Storage tree object to display the controller objects.
2. Expand a controller object.
3. Select the Virtual Disks object.
4. Select a task from the Available Tasks drop-down menu.
5. Click Execute.
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 encountered 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/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.
Degraded Redundancy — This state is applicable to RAID 6 only in which a physical disk in a redundant virtual disk is not online, but the virtual
disk is still accessible and functioning.
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.
Bus
Protocol
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 (SATA)
Media
This property displays the media type of the physical disks present in the virtual disk. The possible values are:
HDD—Hard Disk Drive. A HDD is a non-volatile storage device which stores digitally-encoded data on rapidly rotating platters with magnetic
surfaces.
SSD—Solid State Drive. An SSD is a data storage device that uses solid-state memory to store persistent data.
Unknown—Storage Management is unable to determine the media type of the physical disk.
Read
Policy
This property displays the read policy that the controller is using for this virtual disk. See "RAID Controller Read, Write, Cache, and Disk Cache
Policy."
Write
Policy
This property displays the write policy that the controller is using for this virtual disk. See "RAID Controller Read, Write, Cache, and Disk Cache
Policy."
Cache
Policy
This property displays the cache policy that the controller is using for this virtual disk. See "RAID Controller Read, Write, Cache, and Disk Cache
Policy."
Stripe
Size
This property displays the stripe size of the virtual disk.
Disk
Cache
Policy
This property displays whether the disk cache policy of the physical disks that are part of the virtual disk is enabled or disabled. See "RAID
Controller Read, Write, Cache, and Disk Cache Policy."
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