HP P2000 G3 MSA System CLI Reference Guide 511
volumes
Properties
Table 95 volumes properties
Name Type Description
virtual-disk-
name
string Vdisk name
volume-name string Volume name.
size string Volume capacity, formatted to use the current base, precision, and units.
size-numeric string Unformatted size value in 512-byte blocks.
preferred-owner string Controller that owns the volume during normal operation.
• A: Controller A.
• B: Controller B.
preferred-
owner-numeric
string Numeric equivalents for preferred-owner values.
• 0: B
• 1: A
owner string Either the preferred owner during normal operation or the partner controller
when the preferred owner is offline.
• A: Controller A.
• B: Controller B.
owner-numeric string Numeric equivalents for owner values.
• 0: B
• 1: A
serial-number string Volume serial number.
write-policy string • 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
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.
write-policy-
numeric
string Numeric equivalents for write-policy values.
• 0: write-through
• 1: write-back
cache-
optimization
string • 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.
cache-
optimization-
numeric
string Numeric equivalents for cache-optimization values.
• 0: standard
read-ahead-size string The volume's read-ahead cache setting.
• Disabled: Read-ahead caching is disabled.
• Default: One chunk for the first access in a sequential read and one stripe
for all subsequent accesses.
•
Maximum: Maximum read-ahead size calculated by the controller.
• 64 KB, 128 KB, 256 KB, 512 KB, 1 MB, 2 MB, 4 MB, 8 MB, 16 MB, 32
MB: Size selected by a user.
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