On Sat, 18 Jan 2003, Andre M. V. wrote:
..
> A friend of mine got a D1000 chassis (without the SCSI HDD)
> for $195 US. You can probably get an A1000(with SCSI HDD)
> for $2000 US with shipping. All of this from Ebay. I think
> get the real deal rather than the RM8000.

Andre:

we have *TWO* A1000's. Yes we can buy them for <$2000 apiece from 
www.mce.com. The problem is that SCSI *drives* are expensive -- the A1000 
is only good for up to 36GB SCSI drives. So if you do RAID5 with *NO* hot 
spares that's only 396GB.

The local price of Seagate 36GB SCSI drives is about $280 (we don't want 
to buy drives abroad so we can get good RMA support). So the drives would 
cost 12x280 = $3360. So the total price is $5360.

Basically the drives cost more than the array. Also the A1000 with its 
lame processor is having trouble keeping up with our application load now 
(granted we're using RAID5 which doesn't have very good write performance 
-- but using RAID1+0 would reduce capacity and increase cost even more).

Compare this with $3000 for a Promise RM8000 and $120 for Seagate 
Barracuda IV 80GB hard drives. With RAID5 and 1 hot spare I can get (80x6) 
= 540GB *and I have a hot spare* for only $4000, and it gets even better 
if I put 120GB or 160GB IDE hard drives in the thing.

As you can probably guess from the price the RM8000 is not some "poor 
man's crappy RAID solution." It has dual power supplies, 4U rackmount, 
expandable buffer memory (using ECC DIMM's) up to 256MB..


---
Orlando Andico <[EMAIL PROTECTED]>
Mosaic Communications, Inc.

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