tdiehl at rogueind.com
Wed Nov 26 16:10:26 UTC 2003
On Wed, 26 Nov 2003, Brian Fahrlander wrote:
> On Wed, 2003-11-26 at 00:11, Scott Burns wrote:
> > Eric J. Feldhusen wrote:
> > You might want to give this a try if you have a spare machine available.
> > Fedora + software raid to make a 5 odd partition RAID5 set and then
> > kill one partition. Midway through the rebuild with a hot spare, kill
> > another partition. I'm certain that if RAID5 loses two of it's disks at
> > the same time, it's gone.
> I once asked a woman that worked at Veritas in tech support. She
> said that on all these RAID arrays, loss of a second disk is _ALWAYS_
> fatal. I was stunned.
> I mean, a 30 drive array...and if the second drive goes out, the
> entire thing is toast?
> There gets to be a point where this is a problem. In 1-5 disk
> arrays, what are the chances of a second drive going out? Right: almost
> But when you have 50 drives in a special bay, the chances of a
> second drive going out while you locate a vendor, find out it's been
> obsoleted since it was installed, order a new part....
Hot spares are your friend. Of course there are other alternatives.
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