Bryan N Iotti <[email protected]> writes: > Hi, > > It's a must (that I know of) only on LSI controllers because > otherwise performance on ZFS suffers quite a lot. > > Other controllers have different quirks, like some adaptecs needing > a debug flag passed to enable HBA mode. > > The IR to IT flash is easy. You need a pendrive with FreeDOS bootable > and the firmware from LSI. They have pretty decent instructions on > their website and you should be able to perform the whole procedure in > less than 30 minutes. >
[...] Bob Friesenhahn <[email protected]> writes: > On Sun, 10 Aug 2014, Harry Putnam wrote: >> >>> I also would suggest an add-on controller, with the caveat that you >>> should remember to flash in IT mode and not RAID/IR. >> >> Would that flash step be necessary with most any add on Controler? > > No. It depends on the model number that you order. Models called an > "HBA" are likely delivered in IT mode. Re-iterating the basic hardware involved: HP xw8600 with 2x CPU 5470 3.33Ghz and 32 GB of RAM Is this the kind of thing folks are thinking of when suggesting a SAS card: (not sure what mail encoding might do, but this should be all one line) http://www.serversdirect.com/Components/RAID__HBAs/id-DC7125/LSI_SAS_HBA_9211-4i?gclid=Cj0KEQjwsJyfBRC729Oy5Pf26ekBEiQAYtd9QR6E11DYPDk3igwN6YRQhEptdXPnYXPOGVopqtjurmMaAnCq8P8HAQ Can anyone offer a clue what the marketers of this device might be talking about under Marketing Information: The LSI SAS 9211-4i host bus adapter provides the greatest available throughput to internal server storage arrays through four internal 6Gb/s ports, driving up to 256 SAS and SATA physical devices. This HBA offers dynamic SAS functionality including dual-port drive redundancy and SATA compatibility. Utilizing one internal x4 SFF8087 Mini-SAS connector, the low-profile SAS 9211-4i is an excellent fit for 1U and 2U servers. I'm pretty confused about the write up... The bit about "driving up to 256 SAS and SATA physical devices", in particular Am I right in thinking this would add 4 internal SAS/SATA ports? Or is this something else entirely? ------- ------- ---=--- ------- ------- Is the big brother of the above device more appropriate? http://www.newegg.com/Product/Product.aspx?gclid=Cj0KEQjwsJyfBRC729Oy5Pf26ekBEiQAYtd9QSnU5Y0ObEPMFYeXsJhx8rT4KCwHypodSscs5OAWwqcaAjN78P8HAQ&Item=N82E16816118133&nm_mc=KNC-GoogleAdwords&cm_mmc=KNC-GoogleAdwords-_-pla-_-Controllers+%2f+RAID+Cards-_-N82E16816118133&ef_id=U9g1pQAABU0QZGhN:20140810220043:s Or am I missing the ball altogether? _______________________________________________ openindiana-discuss mailing list [email protected] http://openindiana.org/mailman/listinfo/openindiana-discuss
