[ale] SSD speeds

Derek Atkins warlord at MIT.EDU
Mon Jul 7 08:53:35 EDT 2014


Jim Kinney <jim.kinney at gmail.com> writes:

> I think all the major have a package for it but it's not an install option
> for any that I use.
> ZFS is pretty bada$$ as long are you have a boatload of RAM and lots of
> spindles. Putting it on a 1 or 2 drive system seems rather pointless.  But
> I'm still expecting to have it mainstream Linux in a year or so. The
> de-dupe would be useful for my work but it would require 512GB RAM for the
> storage size.

Regular ZFS requires about 1GB RAM per TB of data.
Adding in DeDup ups the requirement to about 5GB/TB.  :-/

Do you really need DeDup?  Personally I feel I can live without it.

-derek
-- 
       Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
       Member, MIT Student Information Processing Board  (SIPB)
       URL: http://web.mit.edu/warlord/    PP-ASEL-IA     N1NWH
       warlord at MIT.EDU                        PGP key available


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