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[ale] SSD speeds
- Subject: [ale] SSD speeds
- From: warlord at MIT.EDU (Derek Atkins)
- Date: Mon, 07 Jul 2014 08:53:35 -0400
- In-reply-to: <CAEo=5PyMspombZArcY8hgiATpNDtfRJ-WSJTrxD6ZAmVN4VffQ@mail.gmail.com> (Jim Kinney's message of "Thu, 3 Jul 2014 16:23:41 -0400")
- References: <[email protected]> <20140703144934.4fe30950@zipper-homepc> <[email protected]> <CAEo=5PyMspombZArcY8hgiATpNDtfRJ-WSJTrxD6ZAmVN4VffQ@mail.gmail.com>
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
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