Phoenix RPC12 Series, Cli Reference Manual

Page: 104 / 245

Chapter 3 Command Descriptions 105
Example
Set the cache policy and cache optimization mode for volume V1.
Related Commands
Q
“show cache-parameters” on page 141
Q
“show volumes” on page 215
read-ahead-size
size
Optional. Specifies the size of the read-
ahead cache. Valid values are:
•
Disabled
: Turns off read-ahead cache.
•
Default
: Sets one chunk for the first
access in a sequential read and one stripe
for all subsequent accesses.
•
Maximum
: Allows the controller to
dynamically calculate the maximum
read-ahead cache size for the volume.
•
64KB
,
128KB
,
512KB
,
1MB
,
2MB
,
4MB
,
8MB
,
16MB
,
32MB
#
set cache-parameters V1 write-policy write-back optimization
super-sequential
Parameter Description