From: Carlos Knowlton <cknowlton@update.fsix.com>
To: linux-raid@vger.kernel.org
Subject: Re: > 2TB ?
Date: Fri, 11 Feb 2005 07:41:50 -0600 [thread overview]
Message-ID: <420CB61E.5030305@update.fsix.com> (raw)
In-Reply-To: <62b0912f0502110132630b3ae4@mail.gmail.com>
Molle Bestefich wrote:
>No email <null@hotmail.com> wrote:
>
>
>>Forgive me as this is probably a silly question and one that has been
>>answered many times, I have tried to search for the answers but have
>>ended up more confused than when I started. So thought maybe I could
>>ask the community to put me out of my misery
>>
>>Is there a version of MD that can create larger than 2TB raid sets?
>>
>>
>
>I have a couple of terabyte software RAID 1+0 arrays under Linux.
>No size problems with MD as of yet.
>
>But the filesystems is a different affair, and I think this is where
>you should watch out.
>Linux filesystems seems to stink real bad when they span multiple
>terabytes, at least that's my personal experience. I've tried both
>ext3 and reiserfs. Even simple operations such as deleting files
>suddenly take on the order of 10-20 minutes.
>
>
I'm running some 3TB software arrays (12 * 250GB RAID5) with no
trouble. I've opted for XFS over ext3 or reiserfs, and I see no trouble
in accessing or deleting files. However, my Windows clients can't see
the volume unless I tell them that it is less than 2TB ("max disk size"
param in smb.conf).
>I haven't got a ready explanation for why ext3 and reiser can't handle
>TB sizes, but I'd definately advice you against a multi-TB setup using
>Linux (at least until you find someone who has a working setup..)
>
>
I would tend to agree, unless you use a 2.6 kernel, and XFS, then it's
not a problem. Well, as far a software RAID goes anyway - I wish it
handled trivial media errors more gracefully (ie, without dropping
disks). You should always back-up your data.
-CK
next prev parent reply other threads:[~2005-02-11 13:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-10 20:47 > 2TB ? No email
2005-02-10 21:10 ` Peter T. Breuer
2005-02-11 9:32 ` Molle Bestefich
2005-02-11 13:41 ` Carlos Knowlton [this message]
2005-02-11 22:10 ` XFS or JFS? (Was: > 2TB ?) Molle Bestefich
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