Sun Cluster 3

Cluster 3 Commands

Resource Group Operations

Shutdown a resource group:

scswitch -F -g nfs-rg

Turn on a resource group:

scswitch -Z -g nfs-rg

Switchover a failover resource group:

scswitch -z -g nfs-rg -h new_primary_node

Change list of primaries for a scalable group:

scswitch -z -g nfs-rd -h node1,node2,...

Restart a resource group:

scswitch -R -h node,node -g nfs-rg

Evacuate all resources and resource groups from a node:

scswitch -S -h node

Resource Operations

Disable a resource and its fault monitor:

scswitch -n -j nfs-res

Enable a resource and its fault monitor:

scswitch -e -j nfs-res

Disable fault monitor for a resource:

scswitch -n -M -j nfs-res

Enable fault monitor for a resource:

scswitch -e -M -j nfs-res

Maintainance Operations

Boot node outside of cluster

boot -x (from prom)

Place node into maintenance mode (NB, node will lose it's vote so primary node will not failure fence, ensure primary node is up and available before resuming secondary from maint)

scconf -c -q node=nodename,maintstate

Other handy commands

View cluster status

scstat

View cluster config

scconf -p[vv]

View quorum votes

scstat -q 

View disk device groups

scstat -D

View Dids (disk virtual devices)

scdidadm -l

Reconfigure dids (after disk replacement)

scdidadm -r

Switch disk devices between nodes

scswith -z -D dgname -h nodename

View cluster ntp config

cat /etc/inet/ntp.conf.cluster

Disable interface in IPMP group

if_mpadm -d qfe1

Reenable interface in IPMP group

if_mpadm -r qfe1

Resource and Resource Group properties are in

'man r_properties' and 'man rg_properties'

Clear STOP_FAILED flag

scswitch -c -j resource -h node -f STOP_FAILED

Replaced a removed transport cable, this doesn't seem to work in the menu on SC3.2

scconf -a -m endpoint=<hostname>:bge1,endpoint=<switch>@3

Other Cluster Notes

Oracle Logs

Oracle Logs are at /var/opt/SUNWscor/oracle_server|listener sometimes only one node gets the logs tho so check both.

Changing NFS shares

See this document for how to change NFS share options: http://docs.sun.com/app/docs/doc/817-6999/6mmbmf9vc?a=view

Basically, disable the fault monitor, test the change with 'share' update the cluster dfstab file (NOT /etc/dfs/dfstab!), then reenable the fault monitor.