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Not using RAID5/6? That's where I found myself last year, making
arrays from 1TB SATA drives. It doesn't mean RAID5/6 is totally dead;
it's just that its preferability regime (hey, new buzzword!) has been
pushed into territory I'm unlikely to inhabit with drives of that
size. But there are still very fast <<1TB drives where it would
be perfectly reasonable to use RAID5/6 under certain conditions.<br>
<br>
SSD drives? When their sizes get into the 1-2TB range (as I understand
they are), I don't think you're any less likely to accumulate
unrecoverable read errors with them as you would with spinny-parts
drives; they may even be *more* susceptible; both are going to be
susceptible to getting sledgehammered by (mostly) stray neutrons but I
have no idea how that impacts HDDs vs. SSDs in practice (Google
"'Oh-My-God' Particle").<br>
<br>
On 4/22/10 1:05 PM, Greg Clifton wrote:
<blockquote
cite="mid:w2q7620f1d01004221005q274b0ebev1700c396f186d8f6@mail.gmail.com"
type="cite">Shift in focus to the hardware side of the equation. This
thread concentrates on software generated corruption issues, but I have
some hardware related questions. First, with RAIDed hard drives, are
any file systems more or less likely to cause (or minimize) the
likelihood of corruption of the array and if so, why? Second Greg F
(and others) have commented on NOT using RAID 5 (and RAID 6) esp. with
large hard drives. Looks like 1 or 2 TB hard drives will soon be
"standard issue" for everything but notebook computers. So does that
mean that RAID should be considered 'dead,' except for 0, 1, 10? Third,
would SSDs solve the failure from bad sector issues with HDDs and thus
be safe for RAID 5/6 implementations?<br>
<br>
<br>
<div class="gmail_quote">On Thu, Apr 22, 2010 at 9:41 AM, Ed Cashin <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:ecashin@noserose.net">ecashin@noserose.net</a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">On
Wed, Apr 21, 2010 at 9:34 PM, Doug McNash <<a moz-do-not-send="true"
href="mailto:dmcnash@charter.net">dmcnash@charter.net</a>> wrote:<br>
...<br>
<div class="im">> Does anyone out there use xfs? How about a
suggestion for a stable replacement.<br>
<br>
</div>
If you use the xfs in the mainline kernel, it's a crap shoot because<br>
of the amount of churn in the code, but<br>
if you use a long-term kernel like 2.6.16.y, 2.6.27.y, or the kernels<br>
maintained by distros, then it ought to be stable (as long as the<br>
distro has enough of a user base for other people to find the xfs<br>
bugs first).<br>
<font color="#888888"><br>
--<br>
Ed Cashin <<a moz-do-not-send="true"
href="mailto:ecashin@noserose.net">ecashin@noserose.net</a>><br>
<a moz-do-not-send="true" href="http://noserose.net/e/" target="_blank">http://noserose.net/e/</a><br>
<a moz-do-not-send="true" href="http://www.coraid.com/" target="_blank">http://www.coraid.com/</a><br>
</font>
<div>
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