HP Hitachi Dynamic Link Manager Software - Manual (Page 163)

3. Creating an HDLM Environment
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3.6 Installing HDLM
The following section describes how to install HDLM for a new installation, for a
re-installation, and for an upgrade installation. Depending on the procedure, the host
might have to be restarted after HDLM is installed. HDLM can also be installed by
performing an unattended installation, which enables a user to install HDLM without
entering information. Select the procedure suitable for your environment.
To create an HDLM device, the HDLM configuration definition utility
dlmcfgmgr
is
used. For details on the
dlmcfgmgr
utility, see 7.3 dlmcfgmgr Utility for Managing
the HDLM Configuration.
If you want to install HDLM in a boot disk environment that uses SCSI devices, see
3.7 Installing HDLM for Managing Boot Disks.
HDLM supports md devices in a Red Hat Enterprise Linux AS4/ES4 environment. If
you want to perform a new installation of HDLM in an environment where an md
device has been activated, see 3.9.3 Using HDLM in an md Device Environment.
3.6.1 Preparations for a New Installation of HDLM
This section describes the preparations required before newly installing HDLM. This
includes backing up devices to be managed by HDLM and setting up the hardware and
volume management software.
(1) Operations Required for Devices to Be Managed by HDLM
If any devices to be managed by HDLM are operating, you need to perform the
following procedure.
To prepare a device that is already operating:
1.
Terminate all processes of applications that are accessing devices to be managed
by HDLM.
2. If necessary, back up all devices that are to be managed by HDLM.
3. Unregister the devices.
If a device to be managed by HDLM is registered in a program, including cluster
software (excluding the volume management software), release the registration.
When accessing a device that is to be managed after HDLM installation, the
setting name used until now cannot be used for access because the logical device
file name for the HDLM device that HDLM creates is used.
4. Unmount the disks.
If the disks to be managed by HDLM were mounted by specifying SCSI devices,
unmount them.