Re: Promise or 3Ware?
From: Adrian 'Dagurashibanipal' von Bidder (avbidder_at_fortytwo.ch)
Date: 03/25/04
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To: debian-user@lists.debian.org Date: Thu, 25 Mar 2004 09:41:45 +0100
On Wednesday 24 March 2004 18.58, Derrick 'dman' Hudson wrote:
> I now need to buy some hardware to set up a 2-disk RAID-1 array for a
> server. The server will run debian with kernel 2.6. The cost
> (money-wise) is not really an issue. The disks are ATA/133 (already
> purchased). Which would you recommend, and why?
>
> Promise FastTrak TX2000 controller
> with 2 Promise SuperSwap 1000 host-swappable drive bays
>
> 3Ware Escalade 7006-2 controller (or 7506-4LP model)
> with 1 3Ware RDC-400 hot-swappable drive cage
For RAID 1 with only 2 disks, neither.
The driver problems with promise were mentioned, and the 3ware probably is
overkill. Have you thought about using software RAID? Yes, it uses a bit more
CPU and doubles the PCI bus load, compared with the 3ware (dunno about
Promise - I'm not sure if it does RAID1 in hardware).
(Of course, if you don't have enough on-board IDE slots free, go ahead and buy
3ware or ICP controllers. Both are reported to have good drivers and work
well).
> Say, what's the difference between a 32-bit/66MHz and a 64-bit/66MHz
> PCI card? Are there limitations as to what motherboards they will
> work on? This particular machine is an older PII.
Careful: while technically, the 64bit cards should work, check your board:
some boards have some components placed where you would need space for the 64
bit part of the PCI connector.
cheers
-- vbi
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