HP NetRAID-4M Controller - Manual (Page 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