[TriLUG] New system configuration thoughts

[Jim Ray]

I RAID6 the same as RAID5 plus a hot spare?  What is your favorite flavor of
RAID card and hard disk?

I'm partial to those serial attached SCSI drives with the 15,000 rpm speed.

Regards,
 
Jim
 
Jim Ray, President
Neuse River Networks
tel: 919-838-1672 cell: 919-606-1772
http://www.Neuse.Net
 
Connecting You to the World since 1997
 
> -----Original Message-----
> From: trilug-bounces at trilug.org [mailto:trilug-bounces at trilug.org] On
Behalf Of Kevin
> Jones
> Sent: Wednesday, May 02, 2007 10:54 PM
> To: Triangle Linux Users Group discussion list
> Subject: Re: [TriLUG] New system configuration thoughts
> 
> I'll attest to that as it happened to me. Since that event I have never
trusted RAID 5 again
> and have opted for RAID 6 whenever possible. Of course, if you can't do
RAID 6 always,
> always have a hot spare online so the rebuild can begin immediately.
> 
> Kevin
> 
> ----- Original Message ----
> From: Brian Henning <Brian.Henning at datadirect.com>
> To: Triangle Linux Users Group discussion list <trilug at trilug.org>
> Sent: Wednesday, May 2, 2007 7:53:23 PM
> Subject: RE: [TriLUG] New system configuration thoughts
> 
> Kevin Flanagan supposed:
> 
> > How is RAID mirroring not redundancy?  It's redundancy where you don't
> have
> > a system outage in order to replace a disk that has failed.  Odds are
> in
> > your favor that you won't have 2 failures at the same time.  Mirror
> first,
> > _then_ you replicate the data to another system.
> 
> Ever heard the suggestion about always replacing your headlights in
> pairs?  The odds of having two failures (of equally-aged,
> equally-stressed hardware, as in a RAID mirroring setup) at the same
> time are fairly high.
> 
> ~B
> 
> 
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