Hp NetRAID-4M Controller Manual de usuario descargar pdf (Pagina 167)

7-17

Working With Single-level Containers

Executing: container create raid5 /stripe_size=65,536

((CHANNEL=2,ID=1,LUN=0), 104,857,600)

(CHANNEL=2,ID=2,LUN=0)(CHANNEL=2,ID=3,LUN=0)

Container 0 created

Enabling a RAID-5 Set’s Raw Container Cache

The controller provides two global cache buffer pools available to

containers: a volatile read-ahead cache and a non volatile NVRAM

write-back cache. Collectively, these global caches are referred to as

the raw container cache.

The container create raid5 command provides a /cache

switch that allows you to enable the container’s raw cache.

In the following example, the container create raid5

command with the /cache switch creates a RAID-5 set with the raw

container cache enabled.

HPN0> container create raid5 /cache=TRUE ((2,1,0), 100M)

(2,2,0)(2,3,0)

Executing: container create raid5 /cache=TRUE

((CHANNEL=2,ID=1,LUN=0), 104,857,600) (CHANNEL=2,ID=2,LUN=0)

(CHANNEL=2,ID=3,LUN=0)

Container 0 created

If you use the /cache switch, the controller:

■ Enables the read-ahead cache setting for the specified RAID-5

set.

■ Enables the NVRAM write-back cache setting for the specified

volume set if a battery is present and its status is Ok.

If you do not use the /cache switch, you can enable the RAID-5

set’s raw container cache later with the container set cache

command. See Chapter 9, Modifying Containers, for more

information on how to enable a RAID-5 set’s raw container cache

after creating it.

Specifying a Label for a RAID-5 Set

The container label attribute identifies a name assigned to a

container. Note that this label is not the label that displays in

Windows Explorer and Disk Administrator. You can specify a

container label while creating a RAID-5 set or at a later time using

the container set label command. See Displaying and Setting a

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Hp NetRAID-4M Controller Manual de usuario Pagina 167