Hello Damien, list: I've been following this discussion with great interest and I hope the result of it will be the merge of a stable driver in STABLE branch soon.
I brought this not a long ago ( http://lists.freebsd.org/pipermail/freebsd-stable/2011-January/061237.html) and I was hoping to have this driver in 8.x before 8.3 release. > What is sad is that these controllers are becoming very mainstream now, > we're getting them more and more on Dell servers , and the fbsd project > still struggles with them (for reasons I don't know, might be LSI's > fault, might be a lack of resources or interest...) > I couldn't agree more. I've been testing those (9211-8i) myself here on a bunch of SuperMicro servers and I'd say that I am very pleased with the performance of those HBAs (not the mention the price ~$230-250 CAD). On a 12 x SAS disks with a direct attached backplane 826A (6Gbit SAS2.0) in RAID0 across all of them (md linux software raid) I was able to squeeze * 2.1GBytes/s* sequential write (dd kind of style write). With the same setup and SATA disks I get to 1.2GByte/s. I did use 2 controllers to accomodate ports for all the disks. I get the same speed with ZFS and 9.0-CURRENT. On a related note I must say that I do have serious problems with the bandwidth when I use the SAS expander version of this backplane (826E26) (I cannot get more than 200-250 MBytes/s). I've been investigating this problem with LSI's help and still no conclusion. It looks like I am using only one channel. Anyway this was just my humble attempt to encourage the MFC of this driver. I think the card is pretty good. I'd like to hear other people's opinion on this HBA though. Regards, -- Rumen Telbizov http://telbizov.com _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[email protected]"
