Per Jessen skrev:
Anders Norrbring wrote:
It's really not a big deal since the SAS array is RAID-5 with 2 hot spare drives, so I'm pretty certain drive failures won't be a problem,
You meant to say "I'm certain drive failures will be a problem" ? :-)
A key issue with a RAID1 or -5 is the time it takes to recover. Whilst the array is recovering, you're very much exposed. A RAID5 built of 1Tb drives could take quite a while to recover from a one drive failure. One way of reducing the risk is to use drives with staged manufacturing dates, i.e. not all from the same batch/date.
/Per
Haha.. ;-) Well, we all know drive failures WILL happen at some time.. But with a hardware SAS RAID-5 and 2 hot spares, I don't really see that it would create any acute problems besides possibly the rebuild time which is around 2 hours for a failed drive in my case. And yes, all the 8 drives are from different batches and dates. That's not really the issue here, I was more thinking of a "hot mirror backup" of the virtual machines, but as I mentioned, I'll do some experimenting with the speeds. I'll post back my findings when done. Anders. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org