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Server Administrator Storage Management 8.2 User’s Guide

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Virtual Disk Properties

The virtual disk properties can vary depending on the model of the controller. Virtual disk properties may include:

Table 1. Virtual Disk Properties
Property Definition
Status These icons represent the severity or health of the storage component.

— Normal/OK

— Warning/Non-critical

— Critical/Failure/Error

For more information, see Storage Component Severity .

NameDisplays the virtual disk name.
StateDisplays the 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.

    Performing a Cancelling A Check Consistency on a virtual disk while it is in Resynching state causes the virtual disk to be in a Failed Redundancy state.

  • 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 canceled 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.
  • Background Initialization — A background initialization is being performed on the virtual disk.
  • Formatting — The virtual disk is being formatted. For more information, see Format, Initialize, Slow, And Fast Initialize .
  • Initializing — The virtual disk is being initialized. For more information, see Format, Initialize, Slow, And Fast Initialize .

    On some controllers, the virtual disk state is not updated until the controller performs an I/O operation. For more information, see I/O and Reboot Requirements for Detecting Physical Disk Status Changes.

  • Degraded Redundancy — This state is applicable to RAID 6 and RAID 60 in which a physical disk in a redundant virtual disk is not online, but the virtual disk is still accessible and functioning.
PartitionsThis property displays whether the virtual disk has a partition. The possible values are Not Available and Link to the Partitions information page.
Virtual Disk Bad BlockDisplays whether the virtual disk has bad blocks.
EncryptedDisplays whether the virtual disk is encrypted. The possible values are Yes and No.
Hot Spare Policy ViolatedDisplays whether the Hot Spare Protection Policy has been violated.
T10 Protection Information StatusDisplays the data integrity status of the virtual disk. The possible options are Enabled and Disabled.
LayoutDisplays the RAID level.
SizeDisplays 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 is rounded down to 819.72. A virtual disk size of 819.726 is rounded up to 819.73.

Device NameDisplays the operating system device name for this object.
Bus ProtocolDisplays the technology that the physical disks included in the virtual disk are using. Possible values are:
  • SAS
  • SATA
MediaDisplays the media type of the physical disks present in the virtual disk. The possible values are:
  • HDD
  • SSD
  • Unknown — Storage Management is unable to determine the media type of the physical disk.
  • NOTE: You cannot have a mix of HDD and SSD media on a virtual disk. Also, you cannot have a mix of SAS and SATA drives on the virtual disk.
Read PolicyDisplays the read policy that the controller is using for the selected virtual disk. See RAID Controller Read, Write, Cache, and Disk Cache Policy .
Write PolicyDisplays the write policy that the controller is using for the selected virtual disk. See RAID Controller Read, Write, Cache, and Disk Cache Policy .
Cache PolicyDisplays the cache policy that the controller is using for the selected virtual disk. See RAID Controller Read, Write, Cache, and Disk Cache Policy .
Stripe SizeDisplays the stripe size of the virtual disk.
Disk Cache PolicyDisplays whether the disk cache policy of the physical disks that is part of the virtual disk is enabled or disabled. See RAID Controller Read, Write, Cache, and Disk Cache Policy .

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