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Re: RAID suggestions?



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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.

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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