HP P2000 G3, Cli Reference Manual

Page: 322 / 532

322 Alphabetical list of commands
show volumes
Description Shows volume information for all or specified vdisks.
Syntax
show volumes
[vdisk vdisks ]
[class standard|ptsnap]
[type snap-pool|mastervolume|snapshot|standard|primary-volume
|secondary-volume|replication-volume]
[ volumes ]
Parameters
vdisk vdisks
Optional. Names or serial numbers of the vdisks containing the volumes to show. For vdisk syntax,
see Command syntax on page 22.
class standard|ptsnap
Optional. Specifies the class of volumes to show.
type snap-pool|mastervolume|snapshot|standard|primary-volume
|secondary-volume|replication-volume
Optional. Specifies the type of volumes to show. The
replication-volume
option shows primary
and secondary volumes.
volumes
Optional. Names or serial numbers of volumes to show information about. For volume syntax, see
Command syntax on page 22.
Output
Vdisk
Name of the vdisk.
Name
Name of the volume.
Size
Volume size.
Serial Number
Volume serial number.
WR Policy
Cache write policy:
•
write-back
: Write-back caching does not wait for data to be completely written to disk before
signaling the host that the write is complete. This is the default and preferred setting for a
fault-tolerant environment because it improves the performance of write operations and
throughput.
•
write-through
: Write-through caching significantly impacts performance by waiting for data
to be completely written to disk before signaling the host that the write is complete. Use this
setting only when operating in an environment with low or no fault tolerance.
Cache Opt
Cache optimization mode:
•
standard
: Optimizes cache for both sequential and random reads. Appropriate for
applications that read and write small files in random order, such as transaction-based and
database update applications. This is the default.