Dell PowerVault MD3620f Command Line Interface Manual page 156

Parameter
cacheReadPrefetch
segmentSize
usageHint
enclosureLossProtect
securityType
Additional Information
Cache Read Prefetch
The cacheReadPrefetch command lets the RAID controller module
copy additional data blocks into cache while the RAID controller module
reads and copies data blocks that are requested by the host from the physical
156
Script Commands
Description
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.
The amount of data (in KB) 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.
The setting for both the cacheReadPrefetch
parameter and the segmentSize parameter to be
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.
The setting to enforce enclosure loss protection
when you create the disk group. To enforce
enclosure loss protection, set this parameter to
TRUE. The default value is FALSE.
The setting to specify the security level when
creating the disk groups and all associated virtual
disks.
• 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.