RSYNC Fedora

Tom Diehl tdiehl at
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
> nil.
>     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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