[NCSA-discuss] RAID recommendations?

[Matt Pusateri]

Yeah, I completely forgot about the compression, I'm so used to it being on and working, that I forgot to mention it.

On Dec 18, 2010, at 4:18 PM, Breandan Dezendorf wrote:

> I concur with the Solaris + ZFS recommendation.  Keep in mind that ZFS
> dedupe requires a lot of RAM, and when you run out, things go downhill
> quickly.  Second, you cannot shrink a zpool, nor can you reduce the
> number of disks (top-level VDEVs) in a zpool, nor can you switch from
> mirror to stripe on the fly.  If you can live with those limitations,
> ZFS is worth a look.  The snaphots, scrubing and compression are
> amazing.
> 
> If you plan on doing NFS work, I strongly second the idea of getting
> SSDs for log and cache devices.
> 
> Notes for RAM needs for dedupe:
> http://hub.opensolaris.org/bin/view/Community+Group+zfs/dedup
> 
> -- 
> Breandan Dezendorf
> breandan at dezendorf.com
> _______________________________________________
> ncsa-discussion mailing list
> ncsa-discussion at ncsysadmin.org
> http://www.ncsysadmin.org/mailman/listinfo/ncsa-discussion