Michael Stone writes:
I guess the first question is why 2 hot spares?
Because we are using RAID 10
larger array with more spindles with outperform a smaller one with fewer, regardless of RAID level (assuming a decent battery-backed cache).
Based on what I have read RAID 10 is supposed to be better with lots of random access.
5 RAID5 2 RAID1 1 spare
That is certainly something worth considering... Still I wonder if 2 more spindles will help enough to justify going to RAID 5. My understanding is that RAID10 has simpler computations requirements which is partly what makes it better for lots of random read/write.
