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HP Hitachi Dynamic Link Manager Software User Manual

Page 219

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4. HDLM Operation

197

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