>> So in short, you are saying the to get "normal" performance out of >> ZFS+NFS, the best way is to invest in an Areca and 2 SSDs :)) I'm using LSI1068 8-port card and I'm pretty happy with it. My controller is on motherboard, but you can get AOC-USAS-L8i card with the same chipset fairly cheaply. http://www.supermicro.com/products/accessories/addon/AOC-USAS-L8i.cfm The gotcha is that while it's PCI-e card, its bracket is oriented in opposite direction compared to regular cards and components are on the wrong side of the board. However, bend the bracket the other way (or find regular bracket that would fit, or rig something to keep the card in place) and you're in business. As for where to hook up SSDs, I personally like the new AHCI driver. It does seem to have lower per-transfer overhead compared to the MPT driver for LSI1068 and shows better results for small sized transfers from my X25-M SSD (~10% gain over mpt). --Artem On Thu, Nov 12, 2009 at 5:54 PM, James R. Van Artsdalen <james-freebsd-current_at_jrv.org> wrote: > Ivan Voras wrote: >> So in short, you are saying the to get "normal" performance out of >> ZFS+NFS, the best way is to invest in an Areca and 2 SSDs :)) > > The Areca seems very sensitive to the disk drives used and I had to > abandon it. It takes a day or so to get the card's firmware to sound > the on-board siren no matter which disk drives I tried. > > And in any case a couple of Silicon Image 3124 host adapters with > external port multipliers is much faster: the CAM/SIIS driver with such > a setup easily sustains > 800 MB/s and would do better but for bus > bandwidth issues I didn't bother addressing. > _______________________________________________ > freebsd-current_at_freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org" >Received on Fri Nov 13 2009 - 01:10:23 UTC
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