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HP Hitachi Dynamic Link Manager Software User Manual

Page 221

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3. Creating an HDLM Environment

197

/dev/sddlmaa6 on /usr type ext2 (rw)
none on /dev/shm type tmpfs (rw)

Check the underlined section.

30. If Red Hat Enterprise Linux, SUSE LINUX Enterprise Server 10, or SUSE

LINUX Enterprise Server 11 is used, make sure that the HDLM device is

allocated to the swap partition.
Make sure that the HDLM device name is displayed in the

Filename

column of

the

/proc/swaps

file.

3.7.5 Settings for Using a Logical Volume (LVM2) on an HDLM

Device as a Boot Disk

This subsection describes how to migrate a single-path boot disk environment that uses

a logical volume (LVM2) on a SCSI device to a multi-path boot disk environment that

uses a logical volume on an HDLM device. Note that if the settings are incorrect, the

OS might not start.
In this subsection, the procedure assumes that you are using

GRUB

or

ELILO

as the

default boot loader in Red Hat Enterprise Linux, SUSE LINUX Enterprise Server 10,

or SUSE LINUX Enterprise Server 11.
To migrate a single-path boot disk environment that uses a logical volume (LVM2) on

a SCSI device to a multi-path boot disk environment that uses a logical volume on an

HDLM device:
1.

Log in to Linux as a user with root permissions.
In an HDLM environment, a SCSI device cannot be identified from the value set

in

LABEL

. Before installing HDLM, therefore, you must remove the

LABEL

setting. Perform steps 3 to check whether

LABEL

is set.

2.

If the OS is SUSE LINUX Enterprise Server 10 SP3 or later, specify

multipath=off

in the boot loader configuration file.

Make sure that

multipath=off

has been set in the

kernel

line of the boot

loader configuration file. The following example shows how to specify

multipath=off

:

When ELILO is used as the boot loader:

:

:

image = vmlinuz-2.6.16.60-0.54.5-default

label = 51

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