Before you enable high availability, prepare a shared network
file system (NFS). A shared file system is used in high availability
to store share work and user settings.
Procedure
- Confirm that the NFS server can be used for the high availability
configuration and that it is accessible from the IBM® Spectrum Cluster Foundation Community
Edition management
nodes. Run the following command on both management nodes to ping
the NFS server from provision network.
# ping -c 2 -I eth1 192.168.1.1
PING 192.168.1.1 (192.168.1.1) from 192.168.1.3 eth1: 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.051 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=0.036 ms
- View the list of all NFS shared directories available on
the NFS server.
# showmount -e 192.168.1.1
Export list for 192.168.1.1:
/export/data 192.168.1.0/255.255.255.0
/export/home 192.168.1.0/255.255.255.0
- Add the NFS server as an IP pool to the IBM Spectrum Cluster Foundation Community
Edition system.
This prevents the IP address of the NFS server from being allocated
to a compute node and ensures that the NFS server name can be resolved
consistently across the cluster. On the primary management node, run
the following commands.
#nodeaddunmged hostname=nfsserver ip=192.168.1.1
Created unmanaged node.
#plcclient.sh -d pcmnodeloader
Loaders startup successfully.