Vendor-specific mode page codes for tapes

ROWEBER at ACM.ORG ROWEBER at ACM.ORG
Thu May 11 09:27:23 PDT 1995


X3T10/95-221r0

To:   SCSI Reflector
From: Ralph Weber (SPC technical editor)
Subj: Vendor-specific mode page codes for tapes
Date: 10 May 1995

The X3T10 working group has discovered a conflict in mode page code values
that should be resolved ASAP.  In most instances, SCSI-2 defines the usage
of mode page codes 20h through 3Eh as vendor-specific.  For stream devices,
however, mode page codes 15h through 3Eh are defined as vendor-specific.

The X3T10 working group has conclude that the SCSI-2 stream device assign-
ment of mode page codes 15h through 1Fh (inclusive) is incorrect.  In all
cases (including stream devices), mode page codes 15h through 1Fh should be
reserved for future standardization.

Effective immediately, X3T10 will consider mode page codes 15h through 1Fh
(inclusive) to be reserved for future standardization in all device models. 
Anyone who is aware of vendor-specific usages of mode page codes 15h
through 1Fh by stream model devices should report that usage to John
Lohmeyer or myself ASAP.

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Please reply to: ROWeber at ACM.org
                                        Ralph O. Weber
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