Managing Serviceguard Extension for SAP on Linux (IA64 Integrity and x86_64), April 2009

After your volume groups have been created on a node, back them up using vgcfgbackup, then comment
out (there are two places in this file that you need to comment out) the following lines in the
/etc/rc.d/rc.sysinit file:
if [ -e /proc/lvm -a -x /sbin/vgchange -a -f /etc/lvmtab ];
then
action $"Setting up LVM:" /sbin/vgscan && /sbin/vgchange -a -y
fi
Installation Step: IS392
Check chapter 2 for more automounter details.
In this environment the automounter (autofs) version 4 is required for mounting NFS file systems. Check
the installed version with:
lsmod | grep autofs
autofs4 60040 1
If "autofs4" is not listed, install the corresponding rpm. For example:
rpm -Uv autofs4-4.1.3-1.8.ia64.rpm
Uncomment the following line in /etc/modprobe.conf:
alias autofs autofs4
Then reload the autofs4 kernel module using
modprobe autofs4
Restart the automounter process with command
/etc/init.d/autofs start
Also check that the automounter is configured as part of the system startup. Commands for checking are:
/sbin/chkconfig -l autofs
and for adding autofs to runlevel 3 and 5:
/sbin/chkconfig autofs 35
Installation Step: IS393
Add the following entry to your /etc/auto.master
file: /import /etc/auto.import nfsvers=3
The use of NFS version 3 is required.
Installation Step: IS394
Edit the automounter file /etc/auto.import , the indirect automounter map file. In this file, all NFS
client mounted directories will now be configured to be accessed / mounted via the /import directory.
This action consists of several steps that belong together.
The idea behind the action to be performed here is that each path below /export should be automounted
into a placeholder directory that is below /import.
NOTE: There is NOT a straight relationship between the path below /export and the path below /import
(e.g: /etc/export/usr/sap/trans gets mapped to /import/trans and NOT
/import/usr/sap/trans).
Refer to the section "Planning the LVM layout for Clustered SAP Environments" to find out which file systems
and their specified path have to configured for the automounter.
For each directory that has a specified path that shows that it will be mounted below /export, the following
steps are necessary:
72 Step-by-Step Cluster Conversion