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Re: RAID suggestions?



On Tue, Mar 18, 2008 at 10:09:26PM -0500, Ron Johnson wrote:
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> On 03/18/08 10:18, Luke S Crawford wrote:
> > Ron Johnson <ron.l.johnson@cox.net> writes:
> >> Or... don't buy sucky h/w in the first place.  If you *really* care
> >> about your data, you spend the extra bucks for quality h/w that has
> >> a competent support staff behind it.  And you pay for an adequate
> >> backup solution!
> > 
> > I think most people on this list are not looking to blow a Porsche (or more)
> > on a netapp or EMC storage appliance.  sure, they're great if you've
> 
> We just bought 2 Linux clusters with (I think) EVA 5000 SANs.  40
> total TB of SCSI drives, I think.
strange I thought eva 3000's and 5000's went eol a while ago
> 
> Obviously, though, by "we", I don't mean the wife & I.  :)
> 
> > got the scratch, and if your data is really valuable, they might even make 
> > economic sense.    But they don't make sense for your average debian user, 
> > who could buy several thousand backup  workstations or servers  for
> > the price of one of the aforementioned 'good' raid boxes.  
> > 
> > What we are looking for here is a "good enough" raid solution... something
> 
> For a given definition of "good enough".
> 
> OP is at a Uni, and mentioned using 16-24 drives.  Thus I get the
> impression that he needs capacity, speed & reliability.  An $800
> controller won't add that much on top of the cost of the drives,
> shelves & power supplies.
> 
> > that costs significantly less than completely duplicating the $800 server
> > or workstation in question, (meaning most "good" raid solutions you
> > speak of are right out.)  and that gives a significantly better MBTF 
> > (and/or performance) than just one disk.  
> > 
> > Personally,  I run on a mix of single disks and software mirrors... but if 
> > someone knows of a raid card that (along with a redundant disk) doesn't 
> > double the cost of my server and that significantly increases MBTF or 
> > performance over software mirroring, I'm all ears.  
> 
> - --
> Ron Johnson, Jr.
> Jefferson LA  USA
> 
> Supporting World Peace Through Nuclear Pacification
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	- George W. Bush
01/01/2001
congratulating newly elected Philippine President Gloria Macapagal Arroyo, Washington, D.C.

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