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Re: XFS fs size limit?

To: xfs-list <linux-xfs@xxxxxxxxxxx>
Subject: Re: XFS fs size limit?
From: Derek Glidden <dglidden@xxxxxxxxxxxxxxx>
Date: Fri, 03 Aug 2001 11:39:37 -0400
References: <200108021734.f72HYDo07108@jen.americas.sgi.com> <4.3.2.7.2.20010802224302.03e82e68@pop.xs4all.nl> <4.3.2.7.2.20010802231931.03d33168@pop.xs4all.nl>
Sender: owner-linux-xfs@xxxxxxxxxxx
Some people said:

> > > That is silly. Just make a big raid0 of it. If for some reason one ofthe
> > > 3ware cards takes a dump you WILL LOSE ALL YOUR DATA.

> > > Which is exactly the reason to avoid the above mentioned configuration.If
> > > one card dies you have just lost all your data.

> I have seen lots of drives go bad too. But don't discount Murphy. You might
> just have a bad day and a firmware upgrade of your controller resets the
> raid set. Most people with more then one 3ware card will set it up in JBOD
> mode and then use it as a software raid5 with a external log.

> I just feel that my data would not be safe with the setup that you have
> provided. They even had bugs in the 3ware raid config which caused
> corruption in degraded mode. If that happens on your raid0 array or any
> array you are going to lose data. But I think that the chances of severe
> damage will grow in this raid0 setup.

Not to try to drag this conversation even more off-topic than it already
is, but I'm finding this talk about the potential of 3ware cards or
drives going out and losing big important RAID devices and etc really
pretty funny, since IMNSHO, anyone trying to build production-level,
mission-critical RAID volumes off of cheap-o IDE drives and what I
consider a pretty nice, but really pretty low-level IDE RAID card is
just asking for problems to begin with.  

The 3ware cards are nice if you have a bunch of IDE disks lying around
and need space and like to be able to do hardware RAID, but if I were
building a mission-critical datastore, I'd definitely be using high-end
SCSI drives and a RAID controller I was *damn sure* was as bulletproof
as I could get.

So this discussion is making me chuckle.  :)

-- 
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