software RAID 1 w/3 Drives

[Shawn Badger]

That is why it is nice to have the mirror and the data replicated to another
disk. But what are the chances of loosing 3 disk on the same system within
such a short time frame that you would not be able to replace a single disk
that failed? The only time I have ever heard of loosing more than one disk
in a day has been due to some type of power surge that usually fried the
server has well.

On 7/24/07, Dan Lund <situationalawareness at gmail.com> wrote:
>
> It's only a waste until you lose disks.....
> Then you thank your lucky stars you have it.
>
> Shawn Badger wrote:
> > So you are saying that the data is replicated 3 times to each drive.
> > Drives are cheap, but that seems to be a waste to me.
> >
> > Just my 2 cents thought.
> >
> > On 7/23/07, * JT Moree* <moreejt at pcxperience.com
> > <mailto:moreejt at pcxperience.com>> wrote:
> >
> >     -----BEGIN PGP SIGNED MESSAGE-----
> >     Hash: SHA1
> >
> >     Shawn Badger wrote:
> >     > The 3 drives as a Raid is probably set up to have on as a hot
> >     spare. A
> >     > four drive Raid 1 is not really a Raid 1 it is either a Raid 01
> >     or more
> >     > likely a Raid 10. In a Raid 01 you stripe a pair of drives and
> then
> >     > mirror the striped drives. The more common configuration is to
> >     create
> >     > two mirror sets and then stripe them. This gives you fault
> >     tolerance
> >     > with high though put.
> >
> >     No,  It's four mirrored drives.  if the boot drive fails.  The other
> >     drives have lilo in the mbr so they will boot from the mirrored boot
> >     partition--the same on every drive.
> >
> >     - --
> >     JT Morée
> >     PC Xperience, Inc.
> >     -----BEGIN PGP SIGNATURE-----
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> >
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> >     AlcHGDWaCbzIkrA6qFIzds0=
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