HP XP P9500 Storage - Manual (Page 266)

If the host is started in single-user mode, the displayed path status
indicates an error even when the actual path status is normal. Therefore,
before you use HDLM devices in single-user mode, execute the procedure
described in Initializing HDLM When the Host Is Started in Single-User
Mode on page 4-4Operation in Single-User Mode on page 4-4 .
Upgrading Solaris
In a local boot disk environment:
When upgrading Solaris, first remove HDLM, and then upgrade Solaris.
After the Solaris upgrade has finished, re-install a version of HDLM
appropriate to the new version of Solaris.
In a boot disk environment
You cannot upgrade Solaris in a boot disk environment. If you need to
upgrade Solaris, follow these steps:
a
.
Migrate to the local boot disk environment, following the procedure
described in Removing HDLM from the Boot Disk Environment on page
3-187 in Removing HDLM on page 3-185 , and then remove HDLM.
b
.
Upgrade Solaris.
c
.
Reconfigure the boot disk environment, following the procedure
described in Configuring a Boot Disk Environment on page 3-82 .
Operation in Single-User Mode
The Solaris-related, HDLM-related, and application-related tasks listed in
Tasks that Can Be Performed in Single-User Mode on page 4-5 can still be
performed when the host is started in single-user mode, and even if the host
is subsequently changed to run level 1. Before you perform any of these
tasks, execute the procedure described in Initializing HDLM When the Host Is
Started in Single-User Mode on page 4-4 .
Initializing HDLM When the Host Is Started in Single-User Mode
If the host is started in single-user mode, initialize HDLM by following the
procedure below.
To initialize HDLM:
1
.
Mount the file system for the tasks to be performed.
To perform HDLM-related tasks, mount the /var, /opt, and /tmp
directories.
2
.
Execute the following HDLM command to place the paths online:
# /opt/DynamicLinkManager/bin/dlnkmgr online -s
Even if the paths are physically connected, this command may fail if
executed immediately after the boot processing completes. In this case,
wait at least 10 seconds and then re-execute the command. If still
unsuccessful, take the action indicated in the displayed message.
4-4
HDLM Operation
Hitachi Dynamic Link Manager User Guide for Solaris ®