Hitachi Dynamic Link Manager Software Users Guide for AIX (6.6) (T5208-96010, April 2011)

4. HDLM Operation
200
If the command terminates normally, the KAPL10531-I message is displayed. If
the KAPL10531-I message is not displayed, make sure that HDLM-managed
paths are not being used by a process, service, file system, or volume group, and
then perform step 6 again.
7. Execute the following command to make sure that the status of the hdisks
recognized as HDLM-managed devices is
Defined.
# lsdev -Cc disk
hdisk0 Available 1S-08-00-8,0 16 Bit LVD SCSI Disk Drive
hdisk1 Available 1S-08-00-9,0 16 Bit LVD SCSI Disk Drive
hdisk2 Available 1S-08-00-10,0 16 Bit LVD SCSI Disk Drive
hdisk3 Defined 1H-08-02 Hitachi Disk Array (Fibre)
hdisk4 Defined 1H-08-02 Hitachi Disk Array (Fibre)
...
In this example, hdisk3 and hdisk4 are recognized as HDLM-managed
devices.
8. Execute the utility for changing HDLM default settings (
dlmchpdattr).
# /usr/DynamicLinkManager/bin/dlmchpdattr -A -a
reserve_policy=no_reserve
A message is displayed to confirm whether processing should continue. Enter y
to continue processing.
If the command terminates normally, the KAPL10571-I message is displayed.
9. Make sure that the default value for the hdisk reservation policy has been
changed.
Execute the
dlmchpdattr utility with the -o parameter specified.
# /usr/DynamicLinkManager/bin/dlmchpdattr -o
uniquetype = disk/fcp/Hitachi
reserve_policy : no_reserve
KAPL10571-I The dlmchpdattr utility completed successfully.
Perform the following according to the execution environment:
• If the execution environment is a local boot disk environment:
Proceed to step 10.