[Linux-cluster] Heavy writing to GFS partition bringing down GFS cluster

[Duncan Morgan]

We are not 100% certain of this but think that very heavy reads/writes
on a GFS mount elevate the load on the individual nodes considerably and
result in crashing the entire (14-node) cluster. It appears that a
shared PHP session ID directory is the primary cause of this.

Does anyone have any experience similar to this? 

Thanks in advance,
Duncan Morgan