+--- In our lifetime, guy@netapp.com (Guy Harris) wrote: | | Were we to provide distinct separate RAID volumes, made up of one or | more RAID groups, would people want: | | 1) a single pool of hot spares, so that if any disk dies, if | there's a hot spare, reconstruction can start immediately?
I prefer this. Given the odds of disks failing, I would rather have a single pool with 2 or 3 drives and simply swap failed disks when I get a chance (since I would still have spare hot-spares).
| 2) a pool of hot spares per RAID group? | 3) a pool of hot spares per volume?
Too much overhead (in my mind). If you want to cover your butt, you would probably want 2 spares per group/volume at least. That can work out to be a whole lot of disks.
Different people have different needs.
How hard would it be to do all of the above?
Under Solaris Disk Suite, you can have multiple pools of hot spares. You simply associate a volume with the pool you want it to use.
I think this would at least cover most bases :)
Alexei