From: erik quanstrom <quanstro@quanstro.net>
To: 9fans@9fans.net
Subject: Re: [9fans] Survey: Current Fossil+venti Filesystem
Date: Thu, 23 Jun 2011 12:19:52 -0400 [thread overview]
Message-ID: <bb604f688cc89e8659b95d22ef00dd72@ladd.quanstro.net> (raw)
In-Reply-To: <BANLkTima9AvObqa-BkT1zg-M98au0DM9Ow@mail.gmail.com>
On Thu Jun 23 11:59:02 EDT 2011, rminnich@gmail.com wrote:
> you need to be careful about mirroring SSDs.
>
> See: Differential RAID: Rethinking RAID for SSD Reliability
> Mahesh Balakrishnan (Microsoft Research Silicon Valley), Asim Kadav
> (University of Wisconsin), Vijayan Prabhakaran (Microsoft Research
> Silicon Valley), Dahlia Malkhi (Microsoft Research Silicon Valley)
for those who tl;dr'd ...
i don't think this paper applies to write-once systems like
venti (or ken fs for that matter).
also, good ssds are rated in terms of a minimum amount of data
that can be written to them. an very good ssds have a minimum
write number that means they can be written to at maximum speed
for the drive's full rated lifetime.
you're not supposed to keep any drive past their rated lifetime.
- erik
next prev parent reply other threads:[~2011-06-23 16:19 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-22 13:50 Jack Norton
2011-06-22 14:02 ` erik quanstrom
2011-06-22 15:13 ` Charles Forsyth
2011-07-03 9:07 ` Steve Simon
2011-06-23 8:46 ` David du Colombier
2011-06-23 10:03 ` Richard Miller
2011-06-23 10:35 ` Adrian Tritschler
2011-06-23 14:51 ` Jack Norton
2011-06-23 15:25 ` dexen deVries
2011-06-23 15:27 ` erik quanstrom
2011-06-23 15:57 ` ron minnich
2011-06-23 16:19 ` erik quanstrom [this message]
2011-06-23 16:28 ` ron minnich
2011-06-23 16:37 ` erik quanstrom
2011-06-23 18:47 ` Bakul Shah
2011-06-24 22:44 ` Akshat Kumar
2011-06-23 16:56 ` Charles Forsyth
2011-06-23 16:58 ` Charles Forsyth
2011-06-23 17:02 ` Jack Norton
2011-06-23 17:50 ` erik quanstrom
2011-06-23 15:27 ` Charles Forsyth
2011-06-23 15:57 ` David du Colombier
2011-06-23 16:20 ` smiley
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