Hitachi Dynamic Link Manager Software Users Guide for AIX

Preparations for a New Installation of HDLM
In this subsection, you will perform such preparations as backing up the
HDLM management-target devices, applying AIX patches, and performing
hardware setup.
When using HDLM in a cluster configuration, make sure to perform the
operations described in the following sub-sections on all hosts that comprise
the cluster.
Perform Operations for HDLM Management-Target Devices
If you have already defined physical volumes and have been running the
HDLM management-target devices, perform the following procedure:
1. Terminate the processes of all applications that are accessing the HDLM
management-target devices.
2. If necessary, back up all HDLM management-target devices to a medium
such as tape.
3. Unmount the disks.
If the HDLM management-target devices are mounted, unmount them as
follows:
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First, execute the command below to check the current settings.
# mount -p
The current settings will be output as follows:
Figure 3-2 Execution Result Example of the Mount -p
Command (Preparations for a New Installation of HDLM)
In this example, assume that HDLM manages the shaded portion of
the devices.
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Execute the following command to unmount the disk.
# umount /mntpt
4. Execute the following command to inactivate the applicable volume
group:
# varyoffvg volume-group-name
Set Up the Hardware
Check the topology (Fabric, AL, etc.) and perform setup as appropriate.
1. Set up the storage system.
3-24
Creating an HDLM Environment
Hitachi Dynamic Link Manager (for AIX) User Guide