IBM SG24-5131-00 manual LVM State, Cluster State

•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).

6.1.5LVM 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).

6.1.6Cluster 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).

Cluster Testing 133