Users Guide

Property Denition
RAID 1, RAID 10 or RAID 1-concatenated virtual disk suers a physical disk failure. In
addition, there are other conditions related to disk failures and the rmware 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.
Partitions This 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 Block Displays whether the virtual disk has bad blocks.
Encrypted Displays whether the virtual disk is encrypted. The possible values are Yes and No.
Hot Spare Policy Violated Displays whether the Hot Spare Protection Policy has been violated.
NOTE: This property is displayed only if you set any Hot Spare Protection Policy.
For more information, see Setting Hot Spare Protection Policy.
Layout Displays the RAID level.
Size 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 is rounded down to 819.72. A virtual disk size of 819.726 is rounded up to 819.73.
Device Name Displays the operating system device name for this object.
Bus Protocol Displays the technology that the physical disks included in the virtual disk are using. Possible
values are:
• SAS
• SATA
Media Displays 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 Policy Displays the read policy that the controller is using for the selected virtual disk. See RAID
Controller Read, Write, Cache, and Disk Cache Policy.
Write Policy Displays the write policy that the controller is using for the selected virtual disk. See RAID
Controller Read, Write, Cache, and Disk Cache Policy.
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