Reference Guide

Default Value None
Write Privilege None
License Required iDRAC Basic, iDRAC Express, or iDRAC Enterprise
Dependency Applicable only if RAIDaction is 'Create'
Storage.VirtualDisk.Read Policy (Read or Write)
Description
The read policies indicate whether or not the controller should read sequential sectors of the virtual disk when
seeking data.
NOTE: Storage.VirtualDisk.ReadPolicy attribute is read-only for few PERCs—for example, H330.
Legal Values
• NoReadAhead
• ReadAhead
• AdaptiveReadAhead
NOTE: Previous generations of PERC controllers support read policy settings of No Read Ahead,
Read Ahead, and Adaptive Read Ahead. With PERC 8 and PERC 9, the Read Ahead and Adaptive
Read Ahead settings are functionally equivalent at the controller level. For backward compatibility
purposes, some systems management interfaces and PERC 8 and 9 controllers still allow setting
the read policy to Adaptive Read Ahead. While it is possible to set Read Ahead or Adaptive Read
Ahead on PERC 8 or PERC 9, there is no functional difference.
Default Value ReadAhead
Write Privilege Server Configuration
License Required iDRAC Basic, iDRAC Express, or iDRAC Enterprise
Dependency None
Storage.VirtualDisk.Size (Read Only)
Description
This indicates the size in bytes of the virtual disk. When creating a virtual disk, size of 0 indicates using full size of
the physical disks for the specified RAIDTypes.Configurable via XML configuration feature only.
Legal Values None
Default Value None
Write Privilege None
License Required iDRAC Basic, iDRAC Express, or iDRAC Enterprise
Dependency Applicable only if RAIDaction is 'Create'
Storage.VirtualDisk.SpanDepth (Read Only)
Description
This indicates number of spans in the virtual disk.Configurable via XML configuration feature only.
Legal Values None
Default Value None
Write Privilege None
License Required iDRAC Basic, iDRAC Express, or iDRAC Enterprise
Dependency Applicable only if RAIDaction is 'Create'
614 Storage Attributes