Settings For Reservation Policy; Settings For Using Vcs - Hitachi XP P9500 User Manual

Settings for Reservation Policy

When you set up an Oracle RAC environment, if you specify the hdisk for an
HDLM-managed device as a disk used by Oracle RAC, use the procedure
below to check the value of the reserve_policy attribute. If
reserve_policy is set to PR_exclusive, change its value to no_reserve.
1 Check the setting for the reserve_policy attribute of the hdisk.
.
# lsattr -El hdisk-name -a reserve_policy
reserve_policy
Perform the following procedure if reserve_policy is set to
PR_exclusive:
2 Quit all applications that specify and directly access the hdisk whose
.
attribute is to be changed.
3 Execute the following command to unmount the file system used by
.
HDLM.
# umount file-system-mount-point
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

Settings for Using VCS

To use VCS, install HDLM on all of the hosts that comprise the cluster,
and then configure the HDLM devices. Also, carry out the following
procedure before starting VCS:
1 Specify the settings for starting the preonline script when VCS starts.
.
When you have specified the settings for starting the preonline script, go
to step 2.
For details on the setting method, see the VCS documentation.
The following example shows settings for starting the preonline script
when VCS starts:
3-90
PR_exclusive
no_reserve
Creating an HDLM Environment
Hitachi Dynamic Link Manager User Guide (for AIX(R))
N/A TRUE
N/A TRUE