HP Hitachi Dynamic Link Manager Software User Manual

Page 207

When using Red Hat Enterprise Linux AS4/ES4 or SUSE LINUX

Enterprise Server:
You must first remove HDLM before updating the kernel package, and

then re-install it after the update. Note that removing and re-installing

HDLM might change the correspondence between HDLM devices and

SCSI devices.

•

To update the kernel package in an environment that satisfies the

following conditions, you need to change the Persistent Binding setting:

The host is in a Hitachi Compute Blade environment.

The boot disk is managed by HDLM.

The Persistent Binding functionality is enabled.

For details about the Persistent Binding setting, see the manual Hitachi

Gigabit Fibre Channel Board User's Guide.

•

If you use HDLM on a boot disk, LUKS cannot be used for the swap

partitions.

•

If you use the kdump function in an environment where an HDLM device

is used as a boot disk, you might need to create an initial RAM disk image

file for kdump in a single-path boot disk environment that uses a SCSI

device.

Overview of the Procedure for Installing HDLM in a Boot Disk

Environment

This subsection provides an overview of the procedure for installing HDLM in

a boot disk environment.

Settings for Using an HDLM Device as a Boot Disk

Check whether LABEL is used. If it is, remove it.
To use HDLM, you must remove the LABEL setting, because a SCSI device

cannot be identified from the value set in LABEL in an HDLM environment.

See steps 1 to 16 in

Install HDLM.
See step 17 in

Edit the configuration file to change the definition such that the HDLM

device can be used as a boot disk.
After editing the configuration file, restart the host to activate the setting.

After completing the above procedure, you can perform a new installation of

HDLM in a boot disk environment that uses a SCSI device.

Creating an HDLM Environment

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Hitachi Dynamic Link Manager User Guide for Linux

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