suggestions for SATA RAID cards
bob at immure.com
Wed Aug 23 12:02:32 UTC 2006
On Wed, Aug 23, 2006 at 12:02:47PM +0200, Willem Jan Withagen wrote:
> Steven Hartland wrote:
> >The Areca cards I can recommend. Highpoint 1820a is surprisingly good
> >for its price and the later cards have better performance still apparently.
> >N.B. Use the min stripe size when creating the array for max performance
> >with this card under FreeBSD.
> I was more thinking along the lines of a HighPoint 2720, but perhaps a 1820
> would also do fine. What device driver would one use with that.
> [Ahhh, 'man -k highpoint' is your friend]
> Now what I liked about the 3ware stuff was that there are tools to work the
> raid from within FreeBSD. So that would require the newers ones...
> But the hardware list is only showing the 2320 and 2322 with a rr232x(4)
> driver. Which sort of makes me wonder for all the other stuff and their
> The motherboard has both PCI-X and PCI-E so that should not be a connector
> problem. Now which bus is faster: 64Bit PCI-X at 133 Mhz, or a PCI-E 16x?
The x16 PCI-E has considerably faster theoretical speed than 133 PCI-X
(appx. 4GBs vs. 1GBs). However, the RAID controllers that I've seen are
at most x8 so they are only capable of transfer rates half that fast
(2GBs). Personally, I would go with PCI-E since in some performance
tests I did with Areca cards last year (both PCI-E and PCI-X) there
appeared to be a slight performance advantage to the PCI-E cards (sorry,
I don't recall any of the specifics anymore, so please take that for
what it's worth).
BTW, I've had good experience with the Areca cards in FreeBSD (recent
> >Willem Jan Withagen wrote:
> >>I've ran into sort of a snag with building a 2T file server.
> >>Given all the good press here for 3ware and the talk to the guys at
> >>the CeBIT I decided to go for a 9550SX-LP8.
> >>With that I bought a ASUS serverboard: K8N-LR with 165 dual core
> >>In itself is this a combo that I thing would do for a long time at my
> >>home. ;)
> >>However the 3ware controler decided not to play nice with 2 of the
> >>PCI-X boards I have here. It gets stuck in the bios disc scan. I've
> >>RMA-ed the card, but my guess is that it'll take a too long a time to
> >>fix/replace it for my patience.
> >>So I'm looking for alternatives with good support under amd64. I've
> >>seen that the Adaptecs are supported under aac(4). But what about
> >>Promisse or Highpoint RAID controllers?
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