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

7. Utility Reference
316
7.3 dlmchpdattr Utility for Changing HDLM Default Settings
This utility changes the default value for the hdisk attribute.
By changing the default value, the attribute value set for an hdisk can be changed in
the following cases:
• When a new hdisk is configured.
• When the
chdev command is used to set as defined, and then reconfigure, an
existing individual hdisk for which the attribute value has not changed.
• When deleting an existing hdisk
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, and then reconfiguring it.
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When an hdisk for which the attribute value has been defined is reconfigured
without being deleted, the set attribute value is carried over.
If the attribute value for individual hdisks needs to be changed, instead of using this
utility, execute the
chdev command for the necessary hdisks.
Note that if the attribute value has been set for each hdisk, the set attribute values will
be applied.
Supplemental Information:
For HDLM 6.2, the default value for the hdisk reservation policy was set to
PR_exclusive. When the conditions listed in Table 3-21: Reservation Policy
Settings in 3.9 About the Reservation Policy are met, to change the reservation policy
to
no_reserve, the chdev command had to be executed for each hdisk.
In HDLM 6.3 or later, the default reservation policy values for multiple hdisks can be
changed simultaneously by executing the
dlmchpdattr utility.
7.3.1 Format
/usr/DynamicLinkManager/bin/dlmchpdattr
{-a Attribute=Value [Attribute=Value ...]
[-u { HTC | XP }] [-A] [-s]
| -o
| -h}
7.3.2 Parameters
-a Attribute=Va lu e
Specifies one or more attribute name and attribute value pairs. If specifying