Adaptec 2020ZCR Reference Guide - Page 59

cache{=boolean}, container set cache, FALSE, stripe_size{=integer}

Page 59 highlights

container Commands Switches /cache{=boolean} Specifies whether to enable the array's raw array cache.You can use this switch only if a native operating system's file system (for Windows, the NTFS or FAT file system) resides on the array. If you do not want to enable the stripe set's raw array cache when you create it, you can do so later by using the container set cache command. In fact, the container set cache command gives you more control in setting the NVRAM write-back cache. If you set this switch to TRUE, the command causes the controller to enable the read-ahead cache setting for the specified array. You should always enable the read-ahead cache to optimize performance, unless your application-which is unlikely-is doing completely random reads. I Enable when protected the NVRAM write-back cache setting for the specified array. This means the controller enables the array's NVRAM write-back cache only if a battery is present and its status is OK. This switch defaults to FALSE, which means the command causes the controller to disable the array's raw array cache. If you accept the default, the command: I Disables the read-ahead cache I Disables the NVRAM write-back cache /stripe_size{=integer} Specifies the stripe size for the stripe set. Valid values are 16 KB, 32 KB, and 64 KB. If you do not specify a value for this switch, it defaults to 64 KB. 3-28

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container Commands
Switches
/cache{=boolean}
Specifies whether to enable the array’s raw array cache.You
can use this switch only if a native operating system’s file
system (for Windows, the NTFS or FAT file system) resides on
the array. If you do not want to enable the stripe set’s raw
array cache when you create it, you can do so later by using
the
container set cache
command. In fact, the
container set cache
command gives you more control
in setting the NVRAM write-back cache.
If you set this switch to
TRUE
, the command causes the
controller to enable the read-ahead cache setting for the
specified array.
You should always enable the read-ahead cache to optimize
performance, unless your application–which is unlikely–is
doing completely random reads.
Enable when protected the NVRAM write-back cache
setting for the specified array. This means the controller
enables the array’s NVRAM write-back cache only if a
battery is present and its status is OK.
This switch defaults to
FALSE
, which means the command
causes the controller to disable the array’s raw array cache. If
you accept the default, the command:
Disables the read-ahead cache
Disables the NVRAM write-back cache
/stripe_size{=integer}
Specifies the stripe size for the stripe set. Valid values are
16 KB, 32 KB, and 64 KB.
If you do not specify a value for this switch, it defaults to 64 KB.