Messages in this thread |  | | Date | Thu, 19 Sep 1996 11:52:43 -0700 | From | "Leonard N. Zubkoff" <> | Subject | Re: more on AHA-2940UW vs. MSDOS file system |
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From: Harold A Czegledi <hac@Thinkage.On.CA> Date: Thu, 19 Sep 1996 14:46:45 -0400 (EDT)
I recognize that, however, what I should have mentioned in my last mail message is that the disk was returning SCSI command completions while still holding on the SCSI command and considering it to occupy a queued command slot. As a result, the number of tagged commands the SCSI driver thought it had outstanding did not agree with what the device had. I certainly had not expected this behaviour.
That certainly dounds like broen behavior on the disk's part then. A QUEUE FULL message means that the drive should not have placed it in its queue. To qoute the SCSI-2 spec:
7.3.9 QUEUE FULL: This status shall be implemented if tagged queuing is implemented. This status is returned when a SIMPLE QUEUE TAG, ORDERED QUEUE TAG, or HEAD OF QUEUE TAG message is received and the command queue is full. The I/O process is not placed in the command queue.
Leonard
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