Archive for the ‘sun cluster’ Category
Reading Sun Cluster eventlog
I ran into this topic while searching for something unrelated. I have wondered for a while how I could read Sun Cluster eventlog files. For whatever reason Sun Cluster writes these files in binary format, which is not really helpful. I guess those log files are meant to be seen by Sun engineers only. I [...]
In: solaris, solaris tips, solaris utilities, sun cluster
Trussing processes on Sun Cluster?
One of the apps running on Sun Cluster was randomly crashing. So, I decided to take a look what was happening. Yeah, there is DTrace in Solaris 10. Since I am pretty comfortable with truss I decided to give that a shot first: root@node1 # truss -p 27462 truss: process is traced: 27462 root@node1 # [...]
In: solaris, solaris tips, solaris utilities, sun cluster
Sun Cluster’s scconf
Using scconf you can view some useful information about Sun Cluster configuration such as information about cluster transport, disksets, etc. Using multiple v’s you can increase output verbosity. It’s pretty useful especially if you inherited the cluster. I added this command to my previous list, as well. root@node1 # scconf -p -v Cluster name: cluster [...]
In: solaris utilities, sun cluster
Increasing number of NFS servers on Sun Cluster
By default Solaris 10 starts 16 NFS servers to handle NFS requests. You can tune this by editing /etc/default/nfs file. # Maximum number of concurrent NFS requests. # Equivalent to last numeric argument on nfsd command line. NFSD_SERVERS=16 Changing above variables did not seem to have any effects on how many NFS server Sun Cluster [...]
In: nfs, solaris tips, solaris utilities, sun cluster
Useful Sun Cluster commands
Some useful Sun Cluster commands Shut down a resource group: scswitch -F -g [RESOURCE_GROUP_NAME] Bring up a resource group: scswitch -Z -g [RESOURCE_GROUP_NAME] Move failover resource group to node_name: scswitch -z -g [RESOURCE_GROUP_NAME] -h [NODE_NAME] Restart resource group: scswitch -R -h [NODE_NAME] -g [RESOURCE_GROUP_NAME] Evacuate all resources from node_name: scswitch -S -h [NODE_NAME] Disable resource: [...]
In: solaris, solaris utilities, sun cluster
