RELEASE NOTES
				=============



		Product: Media Loader Utility Program (MLU)

		Contents: file MLU021.A, MLU021.B, this and other
		          documents

		Date: 01 March 1994

		Product version:  2.1

		Reason for release: Fixes to TLZ06 support.

		Prerequisite VAX/VMS version:  5.4
		Prerequisite Alpha/VMS version:  1.5

		Supported devices:    TF857    TZ857   TA85
                     TA857    TA867   TF86     TF867   TZ867
                     SA100    SA106
                     TLZ06 on VMS 6.x and Alpha 1.5 systems,
                     TLZ06 as TLZ6 on VMS 5.x
                     TZ857, TZ867 and TLZ06 on HSC's K.SCSI
		     TL820    TZ877

                Unsupported devices (no loader present):
                     TZ86    TF85     TZ85

                Unsupported system components:
		     Any HSC running V8.30 software.
                     KDM70
                     HSC50
		     Served tapes in a cluster - See known
	             limitations section at end of this doc.
		     Any TMSCP tape (TF..M, TA.., etc) on an Alpha
		     system.

		Related documentation: MLU User's Guide (date: TBD)

		Initial release: 26 Nov 1991

		Installation time: about 4 minutes



	Brief description of product
	----------------------------

	The Media Loader Utility serves two purposes:

           * to provide DCL access to media loaders

           * to provide tape operators with a means of rapidly
	     verifying the contents of a magazine before starting
             a lengthy backup/restore operation.


	Installation procedure
	----------------------

	The MLU is installed using the standard VMSINSTAL procedure.
        No options are required. There are (possibly) two non-standard
	questions: (paraphrased)

           1) MLU can be installed so that only priviledged users
	      can use it or so that every user can use it. Which?

	   2) A previous version of MLU exists. Save the old startup
	      file?

        After installation, the system start up procedure must be
        modified to cause the execution of SYS$STARTUP:MLU$STARTUP.COM
        This is usually done in SYS$MANAGER:SYSTARTUP....COM.

        Please check the comments at the beginning of product startup
        procedure SYS$STARTUP:MLU$STARTUP.COM. Special action must
        be taken for SCSI bus based devices.

	Additional Installation Information
	-----------------------------------

	The install kit savesets (MLUxxx.A & MLUxxx.B) contain some
	files that are not installed into the user's system.
	These files consist of information that is of no value to general
	users or is used only by experienced programmers.

	To view the contents of the savesets, issue the following command
	from the DCL prompt:

	   $ BACKUP/LIST MLUxxx.A/SAVE -or- $ BACKUP/LIST MLUxxx.B/SAVE

	Files of interest:

		A) UNKNOWN_DEVICE_MEMO.TXT - Details configurations
		     where the device type is not known to VMS.
		B) MLU_RTL_INTERFACE.TXT - Details the software
		     interface to the RTL.
		C) MLURTLDEF.H - a C language include file
		D) MLU020.RELEASE_NOTES - V2.0 release notes

	Revision Matrix of supported devices
	------------------------------------

	This chart lists the versions of microcode that must be present
	in the indicated device types. See device specific documents
	(or Field Service) on how to get microcode updates.


	  | TF85, TF86 - V4
          +-----------

	  Note: This device does not have a loader and therefor this
	        Media Utility is of little value to TF85 users. Devices
	        with V1, 2 or 3 will cause MLU to report that the
	        display command is not supported. Devices with V4 will
	        cause MLU to report that no loader is present.

	  | TF857, TF867 - V4
          +-------------

          Note: See limitation section at end of these release notes.

	  | TZ85, TZ86 - V3 (date: Jan 1992) or later
          +-----------

          Note: see above note re: no loader. Response of V1 code unknown.

	  | TZ857, TZ867 - V3 (date: Jan 1992) or later
          +-------------

          Note: As of this release, the current version of TZxx
                microcode is V24. No testing of MLU will occur on
                older versions and future MLU changes may cause
		problems.

          | TLZ6, TLZ06, TLZ6L - V4.91 (Aug 1993)
          +------------

	  Note: The TLZ06 device shows up as different device types
	        on different VMS versions. References in these release
		notes and other documentation will be "TLZ06" and mean
		any variation encountered. See UNKNOWN_DEVICE_MEMO.TXT

	  | TA857, TA867, SA100, SA106 - V7 formatter ROMS
          +---------------------------

	  Note: With HSC V6.50, MLU requires a TUdriver that sets the
                MBI modifier. See THETOY::MLU$KIT:SA100_MEMO.TXT for
                more details.

                With HSC V8.00+, the special TUdriver is not required.
		With HSC V8.30, MLU will not work - see limitations.
                HSC versions 8.35 (and up) are supported.

                The HSC50 is not supported by MLU or, more
                accurately, the HCS50 does not support IO$_DISPLAY
                commands and MLU cannot work without them. This
                will not be fixed.

                The KDM70 is not supported by MLU, reason unknown.

	  | TZ877 - V10 (date: FEB 1994) or later
          +------

	Changes since last release
	--------------------------

        See V2.0 release notes for major changes since 1.x releases.

        1. Fixed TLZ06 (all varients)

	Known limitations
	-----------------

        See V2.0 release notes for known limitations.