William Park opengeometry at
Fri Jun 28 13:58:49 PDT 2002

On Fri, Jun 28, 2002 at 01:29:12PM -0400, John Burton wrote:
> I have two relatively large NAS units (.5TB and 1.5TB). Both use ATA/100 
> drives configured in a RAID 5 array. The large one is a standard product 
> (OpenNAS) from RAIDZONE / Consensys and is used for the datastore for the 
> NASA SABER project ( The smaller one is a homebuilt NAS 
> serving as a backup server for our company.  Basically I bought 2 3Ware 
> hotswap cages (3 ATA/100 drives each and a 3Ware Escalade RAID 5 card (8 
> ATA/100 channels).

Hi John,

How much did you paid for them?
How many IRQ does the card use up?

> The 3Ware card is supported under Linux and causes the 
> RAID array to look like a SCSI drive. You can also configure the board to 
> access the drives individually and use software RAID or whatever. We're happy 
> with both setups, but I'll probably go with the 3Ware setup for our next 
> project. I like the 3Ware native linux drivers and the RAID manager support - 
> I don't like "black boxes" and the RAIDZONE unit is more of a black box to me 
> then the homebuilt... Hope this helps!
> John

William Park, Open Geometry Consulting, <opengeometry at>
8-CPU Cluster, Hosting, NAS, Linux, LaTeX, python, vim, mutt, tin

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