Dell PowerVault MD3620f Command Line Interface Manual page 168

Parameter
cacheReadPrefetch
segmentSize
usageHint
dssPreAllocate
securityType
168
Script Commands
Description
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.
The setting to make sure that reserve
capacity is allocated for future segment
size increases. The default value is TRUE.
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.
For information about securityType, see
"Security Type" on page 158.