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SI74084 - OSP-MEDIA-TAPE DUPTAP PERFORMANCE IMPROVEMENT

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


Order this fix

Abstract

OSP-MEDIA-TAPE DUPTAP PERFORMANCE IMPROVEMENT


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
DIST 5770SS1  V7R3M0    SI66907   NONE     0013



NOTICE:
-------
Application of this PTF may disable or render ineffective programs that
use system memory addresses not generated by the IBM translator,
including programs that circumvent control technology designed to limit
interactive capacity to purchased levels.  This PTF may be a prerequisite
for future PTFs.  By applying this PTF you authorize and agree to the
foregoing.

This PTF is subject to the terms of the license agreement which
accompanied, or was contained in, the Program for which you are obtaining
the PTF.  You are not authorized to install or use the PTF except as part
of a Program for which you have a valid Proof of Entitlement.

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AGREED TO IN THE APPLICABLE LICENSE AGREEMENT OR AN APPLICABLE SUPPORT
AGREEMENT, IBM MAKES NO WARRANTIES OR CONDITIONS EITHER EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON INFRINGEMENT,
REGARDING THE PTF.

The applicable license agreement may have been provided to you in printed
form and/or may be viewed using the Work with Software Agreements (WRKSFWAGR)
CL command.





APAR Error Description / Circumvention

-----------------------------------------------
The duplicate tape (DUPTAP) command runs slowly when the files
to be duplicated are not at the beginning of the media.

CORRECTION FOR APAR SE74227 :
-----------------------------
With this PTF IBM i now supports faster duplication of tape
media in the case where the files to be duplicated are not at
the beginning of the media. The commands whose processing times
have been improved are DUPTAP and DUPMEDBRM.

With this enhancement, the duplicate tape function will space
directly to the files to be duplicated instead of searching
every file on the media to find the correct files to duplicate.
This can also reduce media wear by limiting the number of full
media passes needed to position to the files to be duplicated.

CIRCUMVENTION FOR APAR SE74227 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


********************************************************************
THE FOLLOWING ARE SUPERSEDED SPECIAL INSTRUCTIONS. IF THE SUPERSEDED
PTF HAS ALREADY BEEN APPLIED AND ITS SPECIAL INSTRUCTION FOLLOWED,
IT IS NOT NECESSARY TO FOLLOW THAT SPECIAL INSTRUCTION AGAIN.
********************************************************************

SPECIAL INSTRUCTIONS FOR SUPERSEDED PTF SI70255 :
=================================================

The SETTAPCGY command has been changed to add a new TGTCGYOPT parameter
to control when a cartridge will be moved to the target category if it
is different from the mounted category.

Option
'*MOUNT' - (Default) Category changed when cartridge mounted.
'*UNLOAD' - Category changed when cartridge unloaded.
'*EOV' - Category changed when end of volume is reached.

The QTARDSTS API has been changed to add a new field at the end of the
device information.

Offset (Dec) 90
Offset (Hex) 5A
Type         CHAR(1)
Field        Target category option

Target category option. Indicates when the target category will be
changed for a cartridge mounted during the mounted category session.
Possible values follow:
'0' - When the cartridge is mounted.
'1' - When the cartridge is unloaded.
'2' - When the cartridge encounters end of volume.


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   SI72131      OSP-MEDIA-TAPE-MSGCPF5401 DSPTAP *SAVRST OF NEWER RELEASE
   SI70255      OSP-MEDIA-TAPE RESTORE FROM PARALLEL SAVE FAILS
   SI68309      OSP-MEDIA-TAPE-MSGCPF67B0
   SI68043      OSP-MEDIA-TAPE-MSGCPF516D DURING DUPTAP TO WORM MEDIA
   SI66881      OSP-MEDIA-TAPE SETTAPCGY TGTCGY ENHANCEMENTS
   SI59228      OSP-MEDIA-TAPE-MSGCPF415E PARALLEL SAVE/RESTORE
   SI65193      OSP-MEDIA-TAPE-MSGCPF9E1F
   SI60331      OSP-MEDIA-TAPE-MSGCPF41B0 TAPE IMGCLG
   SI65971      OSP-MEDIA-TAPE WRONG DATA DISPLAYED FOR DSPTAP

Summary Information

System..............................i
Models..............................
Release.............................V7R3M0
Licensed Program...............5770SS1
APAR Fixed..........................View details for APAR SE74227
Superseded by:......................
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C1098730


IBM i Support

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Document Information

Modified date:
17 April 2021