HP NetRAID-4M Controller - Manual (Page 158)

7-8
Command Line Interface User’s Guide
Stripe Set for further information on the container list
command.
In the following example, the container create stripe
command with the /stripe switch creates a stripe set with a stripe
size of 64 KB (kilobytes).
HPN0> container create stripe /stripe=64K ((2,1,0), 100M)
Executing: container create stripe /stripe_size=65,536
((CHANNEL=2,ID=1,LUN=0), 104,857,600)
Container 0 created
Enabling a Stripe 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 stripe command provides a /cache
switch that allows you to enable the container’s raw cache.
In the following example, the container create stripe
command with the /cache switch creates a stripe set with the raw
container cache enabled.
HPN0> container create stripe /cache=TRUE ((2,1,0), 100M)
Executing: container create stripe /cache=TRUE
((CHANNEL=2,ID=1,LUN=0), 104,857,600)
Container 0 created
If you use the /cache switch, the controller:
■ Enables the read-ahead cache setting for the specified stripe
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 stripe 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 stripe set’s raw container cache after
creating it.