Working with releasing a container’s cache buffers, Working with releasing a container’s cache, Buffers 9-25 – HP NetRAID-4M Controller User Manual

Page 233

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9-25

Modifying Containers

column indicates None, which means no file system resides on
container 0.

HPN0> container list

Executing: container list

Cluster Num Total Oth Stripe Scsi Partition

Dr Partner Label Type Size Ctr Size Usage C:ID:L Offset:Size

-- ------- ----- ------ ------ --- ------ ------- ------ -------------

0 0 Volume 100MB None 2:01:0 64.0KB: 100MB

To enable a container’s NVRAM write-back cache, use the

container set cache

command with the /write_cache_enable

switch, as in the following example. In the example, the
/write_cache_enable=TRUE

switch enables the write-back cache on

container 0. The /unprotected=FALSE switch enables the NVRAM
write-back cache only if a battery is present and its status is Ok.

HPN0> container set cache /write_cache_enable=TRUE

/unprotected=FALSE 0

Executing: container set cache /write_cache_enable=TRUE

/unprotected=FALSE 0

After running the

container set cache

command to enable a

container’s NVRAM write-back cache, use the

container show

cache

command to display information about the container’s

cache, as in the following example. In the example, the Write Cache
Setting

item indicates ENABLE WHEN PROTECTED, which

means that the container’s NVRAM write-back cache is enabled if a
battery is present and its status is OK.

HPN0> container show cache 0

Executing: container show cache 0

Global Container Read Cache Size

: 81920

Global Container Write Cache Size

: 27729920

Read Cache Setting

: ENABLE

Write Cache Setting

: ENABLE WHEN PROTECTED

Write Cache Status

: Active, protected

Working with Releasing a Container’s Cache Buffers

The CLI allows you to release the cache buffers associated with a
container.

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