HP Hitachi Dynamic Link Manager Software Licenses - Manual (Page 174)

If you want to install HDLM in a boot disk environment that uses SCSI
devices, see Installing HDLM for Managing Boot Disks on page 3-138 .
HDLM supports md devices in Red Hat Enterprise Linux AS4/ES4, Red Hat
Enterprise Linux 5, Oracle Enterprise Linux 5, and Red Hat Enterprise Linux 6
environments. If you want to perform a new installation of HDLM in an
environment where an md device has been activated, see Using HDLM in an
md Device Environment on page 3-163 .
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.
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.
First, check the current settings. Execute the following command:
# mount
The current settings will be output as shown in Figure 3-2 Execution
Results of the mount Command on page 3-102 .
Figure 3-2 Execution Results of the mount Command
3-102
Creating an HDLM Environment
Hitachi Dynamic Link Manager (for Linux®) User Guide