HSG80 ACS Solution Software V8.6 for IBM AIM Installation and Configuration Guide

C–2 HSG80 ACS Solution Software Version 8.6 for IBM AIX Installation and Configuration Guide
You see a lists the hdisks associated with the target volume group.
Locate the location codes for the hdisks found with by using the
lspv command. Refer
to the AIX documentation for information about device location 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 entering the following AIX command:
lsdev –Cc disk
You see a list of hdisks that include the ones reported by the lsvg command, and which
also must be described as “DEC HSG80 RAID ARRAY”. An hdisk described as
“DEC HSG80 Command Console LUN” must also appear in the list and indicate
which is the CCL.
2. Identify the RAID set units associated with the hdisk reported in Step 1.
In Figure C-1, a single host adapter connection to the storage system is assumed. In
Figure C-2 a dual host adapter connection is assumed.
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 series. The rest of the hdisks for the same host adapter are D1XX
series.
L resolves the XX value for the appropriate D0XX or D1XX to which the hdisks
are mapped.