HP StorageWorks HSG80 ACS Solution Software V8.8 for IBM AIX Installation and Configuration Guide (AA-RV1HA-TE, March 2005)

Backing Up, Cloning, and Moving Data
186 HSG80 ACS Solution Software V8.8 for IBM AIX Installation and Configuration Guide
Manual Snapshot/Clone Creation
To Clone or Snapshot drives within an AIX volume group, do the following:
1. Locate all physical volumes (hdisks) within the target volume group using the
following command:
lsvg -p <Target Volume Group>
The response lists the hdisks associated with the target volume group.
2. Get the location codes for the hdisks found with
lspv.
Refer to the AIX documentation on device locations codes.
Each RAID set discovered by AIX is assigned an hdisk designation along
with a location code. The same result occurs for the Command Console LUN
(CCL), which must be enabled prior to AIX device discovery. The location
code for the
hdisks can be found by issuing the following AIX command:
lsdev -Cc disk
Successful command execution shows a list of hdisks that include the ones
reported by the
lsvg command in Step 1, and which also must be described as
“DEC HSG80 RAID ARRAY”. An hdisk described as “DEC HSG80
Command Console LUN” must also display in the list as well which is the
CCL.
3. Identify the RAID set units associated with the hdisk reported in Step 1.
For this discussion, a single host adapter connection to the storage system is
assumed; a dual host adapter connection description follows.
AIX device location codes for hdisks have the format, AA-BB-CC-S,L, where
AA-BB-CC resolves to the AIX system host adapter the storage system is
attached to. S is the storage systems port number and is mapped to either the
D0XX or D1XX series of RAID set device numbers. Which series the hdisks are
mapped to depends on the comparison between the S value of the CCL and the
hdisks in question. The host adapter string of the location code of the CCL hdisk
must match the target hdisk adapter string before the series question can be
answered. For the target hdisks, any of these whose S value is the same as the
CCL S value is associated with the D0XX. The rest of the hdisks for the same host
adapter are D1XX series. The L value in the AIX device location code resolves
the XX value for the appropriate D0XX or D1XX to which the hdisks are mapped.