Dell PowerVault MD3420 - Manual (Page 355)

segmentSize=segmentSizeValue
cacheReadPrefetch=(TRUE | FALSE)
securityType=(none | capable | enabled)]
Parameters
Parameter Description
physicalDiskType Type of physical disk to use for the storage array.
Valid physical disk type is SAS. This parameter is
not required if only one type of physical disk is in
the storage array.
raidLevel RAID level of the disk group that contains the
physical disks in the storage array. Valid RAID levels
are 0, 1, 5 or 6.
diskGroupWidth Number of physical disks in a disk group in the
storage array. This number depends on the
capacity of the physical disks. Integer values are
required. For information about the number of
physical disks that you can use in a disk group, see
Enclosure Loss Protection.
diskGroupCount Number of disk groups in the storage array. Use
integer values.
virtualDisksPerGroupCount Number of equal-capacity virtual disks per disk
group. Use integer values.
hotSpareCount Number of hot spares desired in the storage array.
Use integer values. For information about hot
spares, see Assigning Global Hot Spares.
segmentSize Amount of data (in kilobytes) that the RAID
controller module writes on a single physical disk
in a virtual disk before writing data on the next
physical disk. Valid values are 8, 16, 32, 64, 128,
256, or 512. For information about the
segmentSize parameter, see Using The Auto
Configure Command.
cacheReadPrefetch The setting to turn on or turn off cache read
prefetch. To turn off cache read prefetch, set this
parameter to FALSE. To turn on cache read
prefetch, set this parameter to TRUE.
securityType The setting to specify the security level when
creating the disk groups and all associated virtual
disks. These settings are valid:
• none—The disk group and virtual disks are not
secure.
• capable—The disk group and virtual disks are
capable of having security set, but security has
not been enabled.
• enabled—The disk group and virtual disks have
security enabled.
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