Hitachi Dynamic Link Manager Software Users Guide for Linux (7.6)

• If you use the dlmsetopt utility in an environment where an HDLM device
is used for the boot disk, after changing the settings, you need to re-
create the initial RAM disk image file. To re-create the file, use the dracut
command for Red Hat Enterprise Linux 6, and the dlmmkinitrd
utility for
supporting a boot disk for other OSs. If you change the name of the initial
RAM disk image file, change the settings file for the boot loader so that
the re-created initial RAM disk image file is used during boot-up. For
details on this procedure, see the following table.
Table 7-9 Setting file names for boot loaders
Boot loader File Name
LILO
/etc/lilo.conf
GRUB For Red Hat Enterprise Linux
/etc/grub.conf
For SUSE LINUX Enterprise Server
/boot/grub/menu.lst
ELILO
/etc/elilo.conf
• When you specify the -prsup on
parameter, you need to restart the host
to enable the setting. To link with Lifekeeper, do not set the -prsup on
parameter.
dlmstart Utility for Starting HDLM
You must perform the following operations after installing HDLM:
• Load an HDLM alert driver and a filter driver.
• Configure an HDLM device.
• Start the HDLM manager.
The dlmstart utility performs the above operations as a batch operation.
If an HDLM alert driver and a filter driver have already been loaded or the
HDLM manager is already running, the relevant operation is not performed.
Format
/opt/DynamicLinkManager/bin/dlmstart
Notes:
• You cannot execute multiple instances of the dlmstart utility at the same
time.
• You cannot execute the dlmstart utility while the dlmcfgmgr utility is
executing.
• If you execute the dlmstart utility, the I/O and I/O error counts for
existing paths displayed when the HDLM command (dlnkmgr view -
path) is executed are initialized to 0.
7-40
Utility Reference
Hitachi Dynamic Link Manager User Guide for Linux
®