Date: Thu, 21 Dec 2000 07:24:39 -0700 From: "Justin T. Gibbs" <gibbs@scsiguy.com> To: James Cronin <james@unfortu.net> Cc: freebsd-scsi@FreeBSD.ORG, freebsd-questions@FreeBSD.ORG, fred@condo.chico.ca.us, drek@bigstudios.com, Don.Lewis@tsc.tdk.com, nicks@albury.net.au Subject: Re: seagate drive firmware bugs Message-ID: <200012211424.eBLEOdF41963@aslan.scsiguy.com> In-Reply-To: Your message of "Thu, 21 Dec 2000 13:27:22 GMT." <20001221132722.J52246@plum.flirble.org>
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>Hi,
>
>I note in 20000921234343.A37161@absinthe.condo.chico.ca.us that
>a bug has been identified in certain seagate drives in relation to
>tagged queueing and write-thru caching that results in errors like:
>
>Dec 15 02:27:06 plum /kernel: (da0:ahc0:0:0:0): READ(10). CDB: 28 0 0 9a 22 23
> 0
>+0 2 0
>Dec 15 02:27:06 plum /kernel: (da0:ahc0:0:0:0): NOT READY asc:4,3
>Dec 15 02:27:06 plum /kernel: (da0:ahc0:0:0:0): Logical unit not ready, manual
>+intervention required field replaceable unit: 5
>Dec 15 02:27:06 plum /kernel: (da0:ahc0:0:0:0): Invalidating pack
>
>I've disabled tagged queueing on the affected drive:
My recollection was that the drive would simply fall off the bus to
never return without a power cycle. It's interesting that the drive
actually returns sense telling you it's dead.
>but have been unable to disable write-thru cacheing (there's no option
>that I can find to do that in the SCSI bios on my Adaptec aic7895
>Ultra SCSI adapter).
Use "camcontrol modepage -e -m 8 -P 3" on the device and change WCE to 0.
>How do I find out the firmware version on my drives? Nothing that looks like
>a firmware version gets displayed in dmesg:
>
>da0 at ahc0 bus 0 target 0 lun 0
>da0: <SEAGATE ST39140W 1444> Fixed Direct Access SCSI-2 device
Vendor Model Revision
--
Justin
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