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Cluster Testing 133
• Check that all interfaces communicate (
ping <ip-address> or ping -R
<ip-address>).
• List the arp table entries with arp -a.
• Check the status of the TCP/IP daemons (
lssrc -g tcpip).
• Ensure that there are no bad entries in the /etc/hosts file, especially at the
bottom of the file.
• Verify that, if DNS is in use, the DNS servers are correctly defined (
more
/etc/resolv.conf)
.
• Check the status of NIS by typing
ps -ef | grep ypbind and lssrc -g yp.
• The command exportfs shows non-HACMP controlled NFS exports.
• Run
snmpinfo -m dump -o /usr/sbin/cluster/hacmp.defs address show
snmp information for Cluster network addresses (including the serial
interfaces).
6.1.5 LVM State
• Ensure that the correct VG's are defined, that quorum and auto-varyon are
correctly defined, and that the shared VG's are in the correct state (
lsvg
and
lsvg -o).
• Check that there are no stale partitions (
lsvg -l).
• Check that all appropriate file systems have been mounted and that none
of the rootvg file systems are full (
df -k).
• Check that PVid's have been assigned where necessary and that there
are no ghost disks(
lspv).
• Verify that all entries in the /etc/filesystems file are correct and that there
are no erroneous entries (
more /etc/filesystems and lsfs).
6.1.6 Cluster State
• Check the status of the cluster daemons by issuing lssrc -g cluster and
lssrc -g lock.
• Run
/usr/sbin/cluster/clstat to check the status of the cluster and the
status of the network interfaces.
• Check the cluster logfiles with
tail -f /tmp/hacmp.out, more
/usr/sbin/cluster/history/cluster.mmdd
(mmdd = current date), tail -f
/var/adm/cluster.log
and more /tmp/cm.log.
• Check that the nodename is correct (
odmget HACMPcluster).