Shared disk hang when doing EMS Server failover

[Bruce Yip]

I have setup a Redhat Linux Cluster for EMS FT. However, when doing a failover test of unplug power of a machine, the shared GFS2 file system hang so that the standby EMS Server unable to become active.

Detail:

1. Two Redhat Linux machines with configured Redhat Linux Cluster (Corosync) with shared SAN of GFS2 file system

2. After doing a unplug power of the machine with active EMS Server running, the standby EMS Server at another machine cannot become active due to the shared directory is hang. i.e. When doing a "ls" command on the shared directory, no result return and it hang there.

See anyone has met this issue before or any idea on that

Thanks,

Bruce

[zdenek me]

> another machine cannot become active due to shared directory hanged.

This is the reason why it doesn't works.

The shared datastore directory should be independent from both EMS servers.