From: Joe Landman <joe.landman@gmail.com>
To: xfs@oss.sgi.com
Subject: Re: Practical file system size question
Date: Wed, 17 Apr 2013 09:53:29 -0400 [thread overview]
Message-ID: <516EA959.6090205@gmail.com> (raw)
In-Reply-To: <CAFcHYYBBfsoxdaxNaRjnfyG3yVrRJYYfuoA5vNurdmu+1AUCyA@mail.gmail.com>
On 04/17/2013 09:18 AM, Robert Bennett wrote:
[...]
> The question is - does anyone have experience with this type of
> configuration and in particular with 3TB HDDs and a file system size of
> 99TB? The rebuild time with 2TB drives is ~ 24 hours. Should I expect
Yes, we've built up to 240TB raw (180TB usable) xfs systems for our
customers on our units. Very doable, though there are some considerations.
First off, why 3TB when 4TB are in market, pretty stable ... ? Unless
there is a budgetary limitation you are working against, I'd advise at
least looking at those.
Second, which LSI controllers are you using? Firmware updates for the
controllers to use 3TB and higher drives are pretty much mandated. Our
experience with various LSI cards has ranged from not so good to pretty
good, and this is a firmware version revision dependent (along with
driver) issue from what we found.
> the rebuild time for the 3TB drives to be ~ 36 hours?
Not in our experience. Typically 5-10 hours depending upon RAID card
used, RAID configuration, drives chosen, and other issues. Its pretty
complex, and hard to predict in advance without trying it.
--
Joseph Landman, Ph.D
Founder and CEO
Scalable Informatics, Inc.
email: landman@scalableinformatics.com
web : http://scalableinformatics.com
http://scalableinformatics.com/siflash
phone: +1 734 786 8423 x121
fax : +1 866 888 3112
cell : +1 734 612 4615
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next prev parent reply other threads:[~2013-04-17 13:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-17 13:18 Practical file system size question Robert Bennett
2013-04-17 13:53 ` Joe Landman [this message]
2013-04-17 14:28 ` Robert Bennett
2013-04-17 14:02 ` Rafa Griman
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