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HP StorageWorks Scalable File Share User Manual

Page 36

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1.

For the first member of the failover pair, stop the Heartbeat service to migrate the Lustre
file system components from this node to its failover pair node.

# chkconfig heartbeat off

# service heartbeat stop

At this point, the node is no longer serving the Lustre file system and can be upgraded. The
specific procedures will vary depending on the type of upgrade to be performed.

2.

In the case of a complete server reinstallation, save any server specific configuration files
that will need to be restored or referenced later. Those files include, but are not limited to:

/etc/fstab

/etc/hosts

/etc/ha.d/ha.cf

/etc/ha.d/haresources

/etc/ha.d/authkeys

/etc/modprobe.conf

/etc/ntp.conf

/etc/resolv.conf

/etc/sysconfig/network

/etc/sysconfig/network-scripts/ifcfg-ib0

/etc/sysconfig/network-scripts/ifcfg-eth*

/opt/hptc/pdsh/nodes

/root/anaconda-ks.cfg

/var/flexlm/license.lic

/var/lib/heartbeat/crm/cib.xml

/var/lib/multipath/bindings

The CSV file containing the definition of your file system as used by the lustre_config
and gen_hb_config_files.pl programs.

The CSV file containing the definition of the ILOs on your file system as used by the
gen_hb_config_files.pl

program.

The Kickstart file used to install this node.

The /mnt mount-points for the Lustre file system.

Many of these files are available from other server nodes in the cluster, or from the failover
pair node in the case of the Heartbeat configuration files. Other files may be re-created
automatically by Kickstart.

3.

In the case of a complete node reinstallation, follow the general instructions in

Chapter 3

(page 25)

.

For a patch update from HP SFS G3 support, follow the specific instructions from HP SFS
G3 support for this upgrade.

4.

If applicable, restore the files saved in step 2.

Please note that some files should not be restored in their entirety. Only the HP SFS specific
parts of the older files should be restored. For example:

/etc/fstab

— Only the HP SFS mount lines

/etc/modprobe.conf

— Only the SFS added lines, for example:

# start lustre config
# Lustre module options added automatically by lc_modprobe
options lnet networks=o2ib0
# end lustre config

5.

Reboot as necessary.

36

Installing and Configuring HP SFS Software on Server Nodes