On 7/22/06, Chad Leigh -- Shire.Net LLC <[EMAIL PROTECTED]> wrote:
On Jul 22, 2006, at 4:14 AM, Nikolas Britton wrote: > The motherboard I just bought, SuperMicro X7DBE, has both PCI-X > 133MHz/64-bit and PCI-Express 8x slots, I can't decide what version of > the Areca card to get... I'd like to see some benchmarks of the > ARC-11xx (PCI-X) Vs. the ARC-12xx (PCI-Express). > > The PCIe device has a faster bus (PCIe 8x = 2000MB/s) but PCI-X is > tried and true and not too shabby (PCI-X 133/64 = 850MB/s) ether. > > I have the option of ether a 1130ML (Infiniband connections) or a plan > jane 1230. I've had troubles with SATA cables in the passed so the > 1130ML is very desirable from this stand point. Another thing I'm > worried about is the 1230 will have to much weight on the PCIe 8x slot > because of all the SATA cables. and routing them all is a pain. Does > anyone have a source for an ARC-1230ML? On the other hand I've never > tried the latching SATA cables yet... but the ARC-1130 is $40 > cheaper... I was just looking at the difference between the 1130 and the 1130ML. ML cables are EXPENSIVE and look heavier than 4 normal cables...
But they latch on and you only need 1 ML cable for every 4 SATA cables. The PCI-X card/slot should be sturdy enough but I don't think PCIe is, I've played with PCIe 1x cards and their super small... picture a normal low profile PCI card, now take half that. Maybe they don't make them (ARC-12xxML) for this reason.
I just ordered an 1120 from <http://www.topmicrousa.com/controllers-- tekram.html> and they were the cheapest I've seen. Will be needing an 1130 myself soon I think. Can't help you with the 1130 vs 1230. I would think the PCIe would be the way to go for future proofing your investment.
Yes I think your right here. If you look at the "ATTO STRs and cache transfer rates"[1] the ARC-1120 (PCI-X) is up against the bus limit. theoretically the 1120/1220 could do up to 2400MB/s (8 drives * SATA-II transfer limit of 300MB/s). "The results of the Areca ARC-1120 in the RAID 0 tests cleary show this adapter does not have any trouble with ATTO's tiny dataset. Floating high above the crowd, the ARC-1120 has a perfect view on the struggles of the other adapters. Exceeding 750MB/s, the transfer rates from the Areca ARC-1120 are almost equal to the effective bandwidth of the 133MHz PCI-X bus." [1] [1] http://tweakers.net/reviews/557/18 -- BSD Podcasts @: http://bsdtalk.blogspot.com/ http://freebsdforall.blogspot.com/ _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
