I have an MD3000i Dell SAN with dual controllers. Long story short – it managed to muck up some of its own readings on drives and Dell's support told me I could try to shake it loose with a firmware and NVSRAM upgrade which I need anyway. Since I have a dual controller this can apparently be done live and the upgrade process handles shuffling LUNs between controllers as it updates.
Does anyone have experience with this? The Dell technician claimed it could be done and the documentation suggests as much for dual-controller configurations, but it makes me very nervous to do it.
My main questions are:
- Has anyone done this successfully or know someone who has?
- Are there
any pitfalls to be aware of?
Best Answer
I have successfully performed an update like this on thea same hardwareway for very similar reasons on a couple occasions. My experience was good and required no down time, although it was restricted to a couple esx 3 hosts. Definitely need to have good backups and execute during a maitainance window.
Just last night I had a bad firmware update for my HP san and it took three hours to get it cleared up. That included over an hour of downtime for all VMs using this storage.