OA58745: THE Z/OS TAR UTILITY MAY ALLOW FILES TO BE ARCHIVED WHICH EXCEEDTHE MAXIMUM ALLOWED SIZE (8GB-1)

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When using the z/OS USS shell utility tar to create an archive
  file including file(s) which exceed the maximum size tar accepts
  (8GB-1) message FSUMF338 should be issued and the file should
  not be included in the archive file.  This message may not
  always be issued allowing files exceeding the maximum size to be
  added to the archive.
  
  When trying to extract these files, the following condition
  occurs:
  tar: checksum error on tape
  
  
  
  Verification steps:
  1) Verify the z/OS USS utility 'tar' is in use
  2) Verify an input file exceeds the 8GB-1 file size limit
  3) When trying to extract the above checksum message is issued.
  

Local fix

• Use the 'pax' utility and pax file format (-x pax) to archive
  files larger than 8GB.  For example:
  
  Creation:
  pax -x pax -wvf filename.pax  inputfiles
  
  List:
  pax -x pax -vf  filename.pax
  
  Extraction:
  pax -x pax -rvf  filename.pax
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * z/OS users of the pax, tar and cpio                          *
  * UNIX shell commands                                          *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * When packing a directory in the tar                          *
  * format and some files in the                                 *
  * directory may exceed the maximum                             *
  * supported size, the pax/tar utility                          *
  * may not correctly issue message                              *
  * FSUMF338, and a checksum error                               *
  * may be encountered when unpacking                            *
  * the archive.                                                 *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When packing a directory in the
  tar/cpio format, z/OS pax, tar and
  cpio utilities may fail to correctly
  evaluate file size for all files
  under the directory.
  

Problem conclusion

• After applying this PTF, z/OS pax,
  tar and cpio utilities will check
  all file sizes recursively when
  packing a directory in tar or cpio
  format.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UJ02355 UJ02356 UJ02357

Modules/Macros

• FSUMXCPI FSUMXTAR FSUMXPAX
  

Fix information

• Fixed component name

  OPENMVS SHELL/U

• Fixed component ID

  5695SCPX2

Applicable component levels

• R7A0 PSY UJ02357

     UP20/04/01 P F003

• R7B0 PSY UJ02355

     UP20/04/01 P F003

• R7C0 PSY UJ02356

     UP20/04/01 P F003

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.