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

4. HDLM Operation
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instead of the dlmchpdattr utility to change the values actually used. The
following explains how to use the
dlmchpdattr utility to change default hdisk
values, and apply them as the actually used values.
If you execute the
dlmchpdattr utility with the -A parameter specified, after the
default values are changed, hdisks will be automatically reconfigured. Note that even
though you can execute the utility without specifying the
-A parameter to change the
default value, you have to manually reconfigure the hdisks.
To automatically reconfigure hdisks, perform the procedure in (1) Automatically
Performing hdisk Reconfiguration. To manually reconfigure hdisks, perform the
procedure in (2) Manually Performing hdisk Reconfiguration.
For details on the
dlmchpdattr utility, see 7.3 dlmchpdattr Utility for Changing
HDLM Default Settings.
(1) Automatically Performing hdisk Reconfiguration
To automatically reconfigure an hdisk:
1. Log in to AIX as a user with root permissions.
2. Execute the
dlmchpdattr utility with the -A parameter specified.
# /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.
3. Make sure that the default value for the hdisk reservation policy has 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.
If the execution environment is a boot disk environment, proceed to step 4. If the
execution environment is a local boot disk environment, proceed to step 5.
4. Execute the following command to restart the host.
# shutdown -Fr