How to update firmware on Serviceguard clustered environment?

[wimaxpole]

Hello..

I have a HP-UX 11i v2 + service guard cluster running on two node rx6600 connected to two SAN switches and then to an EVA 6000. I need to update the firmware of RX6600, SAN switches and EVA controllers. Is it OK to update live? please let me know the best practices.

[Torsten.]

No problem to update the EVA and the switches online (always read the release notes!), but the servers need a downtime (one by one).

[wimaxpole]

Thanks Torsten,

I am not very confidant with SG part. So the ideal steps would be like;

1. Remode node from SG by cmhaltnode.

2. update the FC HBA firmware

3. reboot the node

4. join the node to the cluster

Please correct me if I am wrong..

[Torsten.]

 most HBA updates can be performed online, but the servers system firmware must be done offline.