HP XP Racks - Manual (Page 120)

If you are using a virtual I/O server, see the virtual I/O server
documentation to log in to AIX.
2
.
Stop PowerHA on the standby host.
3
.
Upgrade or re-install HDLM on the standby host.
To do so, perform steps 2 through 21 in
When Installing HDLM in a Boot
Disk Environment on page 3-43 of Performing an Upgrade Installation or
Re-installation of HDLM on page 3-36 on the standby host.
4
.
Start PowerHA on the standby host.
5
.
Stop PowerHA on the active host.
Specify takeover as the shutdown mode.
6
.
Upgrade or re-install HDLM on the active host.
To do so, perform steps 2 through 21 in
When Installing HDLM in a Boot
Disk Environment on page 3-43 of Performing an Upgrade Installation or
Re-installation of HDLM on page 3-36 on the active host.
7
.
Start PowerHA on the active host.
Migrating HDLM in a PowerHA 5.5 or PowerHA 6.1 Environment
When HDLM version 5.8.1 or earlier is migrated to HDLM version 5.9 or later,
the logical device file that can be controlled by the HDLM driver changes from
the HDLM device (dlmfdrvn) to hdisk. If the user application uses an LU
managed by HDLM, modify the user application appropriately.
In a virtual I/O server environment, you cannot migrate HDLM when you are
running PowerHA services.
The following procedure explains how to migrate HDLM in an PowerHA
environment. This procedure explains how to migrate HDLM when you are
using PowerHA 6.1. For details about how to use PowerHA, see the PowerHA
documentation along with this manual.
To migrate HDLM in an PowerHA environment:
1
.
Log in to AIX as the root user.
2
.
If disk heartbeats are set, delete the disk heartbeat settings (because you
need to change the disk name from dlmfdrv to hdisk).
For details, see the PowerHA documentation.
3
.
Stop PowerHA on the standby host.
4
.
Migrate HDLM on the standby host.
To do so, perform steps 10 to 26 in
Migrating from HDLM Version 5.8.1 or
Earlier to Version 5.9 or Later on page 3-53 on the standby host.
5
.
Start PowerHA on the standby host.
When PowerHA starts, a warning message may be output, stating that
the custom disk method file (/usr/DynamicLinkManager/cluster/
dlm_hacmp_gdisk_check) does not exist. This message can be ignored
because it does not affect any operations.
The following is an example of such a message:
3-58
Creating an HDLM Environment
Hitachi Dynamic Link Manager User Guide for AIX®