HP P2000 Reference Manual page 428

Table 87 volumes properties (continued)
Name
read-ahead-size
read-ahead-
size-numeric
volume-type
volume-type-
numeric
volume-class
volume-class-
numeric
volume-
qualifier
428 XML API basetype properties
Type Description
The volume's read-ahead cache setting.
string
• 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.
Numeric equivalents for read-ahead-size values.
string
•
-1: Default
•
0: Disabled
•
65536: 64 KB
•
131072: 128 KB
•
262144: 256 KB
•
524288: 512 KB
•
1048576: 1 MB
•
2097152: 2 MB
•
4194304: 4 MB
•
8388608: 8 MB
•
16777216: 16 MB
•
33554432: 32 MB
•
-2147483648: Maximum
• standard: Standard volume.
string
• standard*: Destination of an in-progress volume copy and cannot be
mounted until the copy is complete.
• snap-pool: Snap-pool volume.
• master volume: Master volume.
• snapshot: Snapshot volume.
• replication source: Source for an in-progress replication to a
secondary volume
Numeric equivalents for volume-type values.
string
•
0: standard
•
1: snap-pool
•
2: master volume
•
3: snapshot
•
4: standard*
•
8: replication source
• standard: Standard volume, not enabled for snapshots.
string
• PTSNAP: Snapshot-related volume such as a master volume, snap pool, or
snapshot.
• Proxy: Destination of an in-progress replication from a remote volume.
Numeric equivalents for volume-class values.
string
•
0: standard
•
1: PTSNAP
•
3: Proxy
• N/A: Non-replication-specific volume such as a standard volume, master
string
volume, snapshot, or snap pool.
• RSR: Replication-specific volume, such as a primary volume, secondary
volume, replication snapshot, or replication image.