how to monitor SAN connectivity with Redhat cluster suite

kgvs_prasad · 02-04-2010, 03:31 AM

Hi All,

We have a cluster setup with Redhat Cluster Suite on RHEL5 OS.

SAN is one of the resource configured in the cluster.

We observed that if the SAN connectivity is lost on a given node then resources are not getting failovered to second node. How to resolve this problem?

I have some working experience with LinuxHA where we can explicitly configure a monitoring logic for any resource.
Is it possible to do such resource monitoring in RHCS?

Regards,
Prasad.

TB0ne · 02-04-2010, 10:20 AM

Quote:

Originally Posted by kgvs_prasad

Hi All,

We have a cluster setup with Redhat Cluster Suite on RHEL5 OS.

SAN is one of the resource configured in the cluster.

We observed that if the SAN connectivity is lost on a given node then resources are not getting failovered to second node. How to resolve this problem?

I have some working experience with LinuxHA where we can explicitly configure a monitoring logic for any resource.
Is it possible to do such resource monitoring in RHCS?

Regards,
Prasad.

Depends...are you running multipathing? What kind of SAN? Fiber cards? Different environments = different options. If you want to lowball it, write a script to poll a file on the mounted SAN volume every so often. If it can't open it, fail over to your other node.