Greg Smith wrote: > Scott Carey wrote: >> 9650 was made by 3Ware, essentially a PCIe version of the 9550. The >> 9690SA >> was from some sort of acquisition/merger. They are not the same >> product line >> at all. >> > 3ware became a division of AMCC, which was then bought by LSI. The > 9590SA came out while they were a part of AMCC. > > I was under the impression that the differences between the 9650 and > the 9690SA were mainly related to adding SAS support, which was sort > of a bridge addition rather than a fundamental change in the design of > the card. You'll often see people refer to "9650/9690" as if they're > the same card; they may never run the same firmware. They certainly > always get firmware updates at the same time, and as part of the same > download package. > > Another possibility for the difference between Scott's experience and > mine is that I've only evaluated those particular cards recently, and > there seems to be evidence that 3ware did some major firmware > overhauls in late 2008, i.e. > http://unix.derkeiler.com/Mailing-Lists/FreeBSD/performance/2008-10/msg00005.html > > > Let me try to summarize where things are at a little more clearly, > with the data accumulated during this long thread: > > -Areca: Usually the fastest around. Management tools are limited > enough that you really want the version with the on-board management > NIC. May require some testing to find a good driver version. > > -3ware: Performance on current models not as good as Areca, but with > a great set of management tools (unless you're using SAS) and driver > reliability. Exact magnitude of the performance gap with Areca is > somewhat controversial and may depend on OS--FreeBSD performance might > be better than Linux in particular. Older 3ware cards were really slow. > > One of these days I need to wrangle up enough development cash to buy > current Areca and 3ware cards, an Intel SSD, and disappear into the > lab (already plenty of drives here) until I've sorted this all out to > my satisfaction. Most common SSDs will NOT come up on the 3ware cards at present. Not sure why as of yet - I've tried several. Not had the time to screw with them on the ARECA cards yet. -- Karl
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