HP XP P9500 Storage - Manual (Page 192)

32
.
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.
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
append = "splash=silent multipath=off"
description = Linux
initrd = initrd-2.6.16.60-0.54.5-default
root = /dev/disk/by-id/scsi-35001862001472c70-part12
multipath=off is set in the underlined section.
¢
When GRUB is used as the boot loader with Xen kernels:
For details on Xen kernels, see
Table 3-47 Xen Hypervisor Operating
Environments Supported by HDLM on page 3-67 .
:
:
title XEN
root (hd0,0)
3-124
Creating an HDLM Environment
Hitachi Dynamic Link Manager User Guide (for Linux(R))