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

3. Creating an HDLM Environment
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4. Execute the following command to display all the activated volume groups.
# lsvg -o
5. Among the displayed volume groups, inactivate the volume groups used by
HDLM.
# varyoffvg
volume-group-name
6. Execute the chdev command to change the reserve_policy attribute to
no_reserve.
# chdev -l
hdisk-name -a reserve_policy=no_reserve
7. Confirm that the setting was changed to no_reserve.
# lsattr -El
hdisk-name -a reserve_policy
reserve_policy no_reserve N/A TRUE