On Fri, 11 Sep 2009, Eric Schrock wrote: > It's clearly bad firmware - there's no bug in the sata driver. That > drive basically returns random data, and if you're unlucky that > randomness will look like a valid failure response. In the process I > found one or two things that could be tightened up with the FMA analysis, > but when your drive is returning random log data it's impossible to > actually fix the problem in software.
Well, I won't claim the drive firmware is completely innocent, but as evidenced in http://mail.opensolaris.org/pipermail/fm-discuss/2009-June/000436.html smartctl on a Linux box seems to work just fine. The exact same model drive also works just fine in an x4540. So I think the assertion that the drive returns random data is demonstrably false. There's something about the SSD in an x4500 that just doesn't play nice -- it might be partially the drive firmware, it might be the SAS controller, it might be something else -- but it's *not* simply random data being returned from the drive. It would be really appreciated if that problem could be tracked down so the drive works as well SMART-wise in an x4500 as it does in a Linux box or an x4540, but I understand Sun does not certify the x4500 with SSD's so there's no expectation that would happen. But it would be really really appreciated :)... -- Paul B. Henson | (909) 979-6361 | http://www.csupomona.edu/~henson/ Operating Systems and Network Analyst | hen...@csupomona.edu California State Polytechnic University | Pomona CA 91768 _______________________________________________ zfs-discuss mailing list firstname.lastname@example.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss