Dell PowerVault MD3420 - Manual (Page 179)

Parameter Description
userLabel Name that you want to give the new virtual disk.
You must put quotation marks (" ") around the new
virtual disk name.
NOTE: You can use any combination of
alphanumeric characters, hyphens, and
underscores for the names. Spaces are not
allowed. Names can have a maximum of 30
characters.
capacity Size of the virtual disk that you are adding to the
storage array. Size is defined in units of bytes, KB,
MB, GB, or TB.
NOTE: If you do not specify a capacity, all
physical disk capacity available in the disk
group is used. If you do not specify capacity
units, bytes are used as the default. A space
must be added between the last digit and the
size (MB, GB, or KB) for values greater than 9.
owner RAID controller module that owns the virtual disk.
Valid RAID controller module identifier values are 0
and 1. The identifier value is 0 for the RAID
controller module on the top and 1 for the RAID
controller module on the bottom when viewed
from the rear of the enclosure. If you do not
specify an owner, the RAID controller module
firmware determines the owner.
NOTE: The owner parameter defines which
RAID controller module owns the virtual disk.
The preferred owner of a virtual disk is the
RAID controller module that currently owns
the disk group.
cacheReadPrefetch The setting to turn on or turn off cache read
prefetch. To turn on cache read prefetch, set this
parameter to TRUE. To turn off cache read
prefetch, set this parameter to FALSE.
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.
usageHint The settings for both the cacheReadPrefetch
parameter and the segmentSize parameter
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