IBM Support

SE74227 - OSP-MEDIA-TAPE DUPTAP PERFORMANCE IMPROVEMENT

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 APAR (Authorized Program Analysis Report)

Abstract

OSP-MEDIA-TAPE DUPTAP PERFORMANCE IMPROVEMENT

Error Description

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

Problem Summary

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

Problem Conclusion

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.  

Temporary Fix

Comments

Circumvention


PTFs Available

R720 SI74083  1084

R730 SI74084  1000

R740 SI74085  1091

Affected Modules


         
         

Affected Publications

Summary Information

Status............................................CLOSED PER
HIPER...........................................No
Component..................................5770SS100
Failing Module..........................RCHMGR
Reported Release...................R720
Duplicate Of..............................




IBM i Support

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Document Information

Modified date:
16 April 2021