Date: Fri, 1 Aug 1997 04:06:17 -0700 (PDT) From: asami@cs.berkeley.edu (Satoshi Asami) To: gibbs@plutotech.com Cc: gibbs@freebsd.org, scsi@freebsd.org Subject: Re: NOT READY Message-ID: <199708011106.EAA27735@silvia.HIP.Berkeley.EDU> In-Reply-To: <199707301827.MAA17071@pluto.plutotech.com> (gibbs@plutotech.com)
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Thanks for your reply, Justin.
* be doing to cause the drive to spin down. You could try adding in a start
* unit in the sense handler for the sd driver and see if it clears up your
* problem.
Something like this?
===
Index: sd.c
===================================================================
RCS file: /usr/cvs/src/sys/scsi/sd.c,v
retrieving revision 1.95.2.2
diff -u -r1.95.2.2 sd.c
--- sd.c 1997/02/05 19:02:22 1.95.2.2
+++ sd.c 1997/08/01 08:54:18
@@ -853,6 +853,13 @@
if (inqbuf->dev_qual2 & SID_REMOVABLE)
return SCSIRET_CONTINUE;
+ /* Restart if drive says not ready.
+ */
+ if ((sense->error_code & SSD_ERRCODE_VALID) == 0x2) {
+ scsi_start_unit(sc_link, SCSI_ERR_OK | SCSI_SILENT);
+ return SCSIRET_CONTINUE;
+ }
+
/* Retry all disk errors.
*/
scsi_sense_print(xs);
===
(I haven't tried it yet...it's kinda scary. ;)
* The sd driver will perform a start unit (unconditionally) when the
* device is opened. This will cause the drive to spin up and everything
* will go back to normal.
I see.
* It wouldn't surprise me at all if this were a thermal problem.
* Stick a temperature sensor in the enclosure (on the drive itself)
* and rule this out.
I'll see how I can do that.
Satoshi
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