UNSOLVED
Red Hat Cluster Suite cluster.conf settings when using PowerPath
We're setting up a Red Hat Cluster Suite 5 cluster in house here on DMX-3 storage. The quorum device has two paths to its disk. We're using PowerPath 5.3 for the Multipathing and need to know if EMC has recommended values for the following Red Hat Cluster Suite parameters.
All of these settings are in the /etc/cluster/cluster.conf file.
The interval and tko attributes from the quorumd tag:
The cman failover time, specified in the totem token tag:
The quorum_dev_poll tag:
Does anyone know how we should come up with the proper values of these settings on our system? We¿ll need to tell customers how to do this, so it¿d be nice to fully understand the proper method of coming up with these values. Red Hat provides a little guidance, but hinges it on understanding the maximum time that can elapse before a path fails over in PowerPath. How do you determine that maximum time? Is there a PowerPath command that will show you the current setting of that value?
All of these settings are in the /etc/cluster/cluster.conf file.
The interval and tko attributes from the quorumd tag:
The cman failover time, specified in the totem token tag:
The quorum_dev_poll tag:
Does anyone know how we should come up with the proper values of these settings on our system? We¿ll need to tell customers how to do this, so it¿d be nice to fully understand the proper method of coming up with these values. Red Hat provides a little guidance, but hinges it on understanding the maximum time that can elapse before a path fails over in PowerPath. How do you determine that maximum time? Is there a PowerPath command that will show you the current setting of that value?
