156
Script Commands
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
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
.
segmentSize
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
.
usageHint
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
.
enclosureLossProtect
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
.
securityType
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.
Parameter
Description
book.book Page 156 Wednesday, June 8, 2011 12:20 PM
Summary of Contents for PowerVault MD3600f Series
Page 1: ...Dell PowerVault Modular Disk Storage Arrays CLI Guide ...
Page 44: ...44 About the Script Commands ...
Page 114: ...114 Using the Remote Replication Premium Feature ...
Page 311: ...Script Commands 311 ...
Page 312: ...312 Script Commands ...
Page 318: ...318 Sample Script Files ...
Page 328: ...Index 328 ...