Volumes; Volumes Properties - HP P2000 Reference Manual

volumes

Properties
Table 87

volumes properties

Name
virtual-disk-
name
volume-name
size
size-numeric
preferred-owner
preferred-
owner-numeric
owner
owner-numeric
serial-number
write-policy
write-policy-
numeric
cache-
optimization
cache-
optimization-
numeric
Type Description
Vdisk name
string
Volume name.
string
Volume capacity, formatted to use the current base, precision, and units.
string
Unformatted size value in 512-byte blocks.
string
Controller that owns the volume during normal operation.
string
• A: Controller A.
• B: Controller B.
Numeric equivalents for preferred-owner values.
string
•
0: B
•
1: A
Either the preferred owner during normal operation or the partner controller
string
when the preferred owner is offline.
• A: Controller A.
• B: Controller B.
Numeric equivalents for owner values.
string
•
0: B
•
1: A
Volume serial number.
string
• write-back: Write-back caching does not wait for data to be completely
string
written to disk before signaling the host that the write is complete. This is the
preferred setting for a fault-tolerant environment because it improves the
performance of write operations and throughput. This is the default.
• 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.
Numeric equivalents for write-policy values.
string
•
0: write-through
•
1: write-back
• standard: Optimizes cache for both sequential and random reads. Used
string
for applications that read and write small files in random order, such as
transaction-based and database update applications. This is the default.
• super-sequential: Optimizes cache for sequential reads only. Used for
applications that read and write large files in sequential order, such as video
playback and multimedia post-production video and audio editing
applications.
Numeric equivalents for cache-optimization values.
string
•
0: standard
•
1: super-sequential
HP P2000 G3 MSA System CLI Reference Guide 427