Write incompatibility

Erich Oetting erich_oetting at stortek.com
Wed Sep 25 12:02:09 PDT 1996


* From the SCSI Reflector (scsi at symbios.com), posted by:
* erich_oetting at stortek.com (Erich Oetting)
*
Ken Hallam wrote:
>There is a situation operating tape drives, (or any removable media device)
>wherein a new device will read, but not write older generation media. Only
>newer media can be both written and read on this device. The question for
>our mavens is thus: Given a new device that has older media mounted, what is
>proper SCSI etiquette to use as a response when the host sends down a WRITE
>command to media than cannot be written?
>
>Possible Responses:
>A. Check Condition 02, Sense Key 5h, (Illegal Request)) ASC/ASCQ 30h/05H
>(cannot write medium, incompatible format)
>B. Check Condition 02, Sense Key 3h, (Medium Error), ASC/ASCQ 30h/05h

A third possible response is Check Condition 02, Sense Key 7h,
(Data Protect), ASC/ASCQ 30h/05h.

  ... Erich Oetting



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