Dell PowerVault MD3620f Command Line Interface Manual page 171

Parameter
owner
cacheReadPrefetch
segmentSize
usageHint
Description
RAID controller module that owns the virtual disk.
Valid RAID controller module identifiers are 0 or 1,
where, 0 is the RAID controller module on the left and
1 is the RAID controller module on the right when
viewed from the rear of the enclosure. If you do not
specify an owner, the RAID controller module firmware
determines the owner.
NOTE:
owner
The 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.
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.
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" on page 54.
The settings for both the cacheReadPrefetch parameter
and the segmentSize parameter should be the default
values. The default values are based on the typical I/O
usage pattern of the application that is using the
virtual disk. Valid values are fileSystem, dataBase, or
multiMedia.
Script Commands
171