On Wed, 06 Jun 2007, Douglas Gilbert wrote: > Matthew Jacob wrote: > > The FreeBSD problem was fixed by Scott Long a couple of days ago by > > doing some cut through SAS stuff that enabled Write Cache for SATA > > drives. Why LSI-Logic couldn't just blitheringly synthesize mode page > > 8 is beyond me, but okay. > > > > I dunno whether the issue here is the same one Scott tackled- probably > > given the messages. Eric- you listening in on this? > > Matt, > Just in case Eric doesn't answer, I suspect if the > HBA firmware can be upgraded (from Dell or LSI?) then > WCE (write cache enable) in the caching mode page > will be supported. It is one of the few mode page > settings that is required to be implemented in SAT. > > The other field that should be changeable is DRA > (disable read ahead). Both work on my LSI SAS HBA. > > Doug Gilbert > I upgraded to the latest Dell firmware, but the kernel message is the same - write cache disabled, and the write speed is still very bad. No sign of new changeable options. Can't actually see any firmware on the LSI site. Adam - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
