[ale] XFS on Linux - Is it ready for prime time?

[Jim Kinney]

RAID 5 was an invention for a time when hard drives were total crap tons of
money. The pain of losing a drive in a RAID 5 array is just no longer
balanced by the cost of the drives. If a 1TB drive is only $100, it's
bluntly dirt cheap now to have a hot spare in a 4 active drive RAID 10
system. The recovery is much easier and faster when checksums don't have to
be calculated for every stinking block on the drive(s).

My ideal rig: Striped array for speed composed of mirrored triplets - 2
active, one hot spare per active pair.

On Thu, Apr 22, 2010 at 1:05 PM, Greg Clifton <gccfof5 at gmail.com> wrote:

> 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?
>
>
>
> On Thu, Apr 22, 2010 at 9:41 AM, Ed Cashin <ecashin at noserose.net> wrote:
>
>> On Wed, Apr 21, 2010 at 9:34 PM, Doug McNash <dmcnash at charter.net> wrote:
>> ...
>> > Does anyone out there use xfs? How about a suggestion for a stable
>> replacement.
>>
>> If you use the xfs in the mainline kernel, it's a crap shoot because
>> of the amount of churn in the code, but
>> if you use a long-term kernel like 2.6.16.y, 2.6.27.y, or the kernels
>> maintained by distros, then it ought to be stable (as long as the
>> distro has enough of a user base for other people to find the xfs
>> bugs first).
>>
>> --
>>  Ed Cashin <ecashin at noserose.net>
>>  http://noserose.net/e/
>>  http://www.coraid.com/
>> _______________________________________________
>> Ale mailing list
>> Ale at ale.org
>> http://mail.ale.org/mailman/listinfo/ale
>> See JOBS, ANNOUNCE and SCHOOLS lists at
>> http://mail.ale.org/mailman/listinfo
>>
>
>
> _______________________________________________
> Ale mailing list
> Ale at ale.org
> http://mail.ale.org/mailman/listinfo/ale
> See JOBS, ANNOUNCE and SCHOOLS lists at
> http://mail.ale.org/mailman/listinfo
>
>


-- 
-- 
James P. Kinney III
Actively in pursuit of Life, Liberty and Happiness
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.ale.org/pipermail/ale/attachments/20100422/0e1cd7bc/attachment.html