Hi Folks,
As far as I can tell, md RAID10 is the greatest thing since sliced bread
- mirroring and striping in one operation (more efficient disk use,
better performance), avoids the RAID5/6 write hole issue, etc. - I've
been having very good luck with it on two servers that I run.
The thing is, I'm looking at some scaling and clustering options, and
can find practically no documentation or case studies or much of any
information about md RAID10 - which sort of surprises me. I'd think it
would be more popular and there'd be more comparisons vis-a-vis other
options.
Anyway... what I'm looking at is trying to create a large storage pool,
out of 16 drives, spread across 4 servers - essentially trying to create
a poor man's storage cloud to support a collection of VMs that can be
migrated for load leveling and failover.
One thought is to expose all the drives via AoE, then combine them into
one large RAID10 array - but I'm neither sure this is feasible nor how
it would perform under various loads, failure conditions, etc.
Thoughts, pointers, ....?
Thanks,
Miles Fidelman
--
In theory, there is no difference between theory and practice.
In<fnord> practice, there is. .... Yogi Berra
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