IT27594: QUERY DEDUPSTATS DISPLAYS WRONG VALUES FOR UNIQUE AND SHARED EXTENT SPACE USED WHEN DATA IS COMPRESSED.

8.1.8.000-IBM-SPOC-Linuxs390x
8.1.8.000-IBM-SPSRV-Linuxppc64le
8.1.8.000-IBM-SPCMS-WindowsX64
8.1.8.000-IBM-SPCMS-WindowsI32
8.1.8.000-IBM-SPCMS-Linuxx86_64
8.1.8.000-IBM-SPOC-WindowsX64
8.1.8.000-IBM-SPOC-Linuxx86_64
8.1.8.000-IBM-SPOC-LinuxPPC64le
8.1.8.000-IBM-SPOC-AIX
8.1.8.000-IBM-SPSRV-WindowsX64
8.1.8.000-IBM-SPSRV-Linuxx86_64
8.1.8.000-IBM-SPSRV-Linuxs390x
8.1.8.000-IBM-SPSRV-AIX

APAR status

• Closed as program error.

Error description

• QUERY DEDUPSTATS displays wrong values for the "Unique Extent
  Space Used" and "Shared Extent Space Used" fields when
  compression is used.
  For example, QUERY DEDUPSTATS displays the following values for
  a node and filespace.
  
  Total Space Used (MB): 26,418
  Non-Deduplicated Extent Space Used: 2,824,502
  Unique Extent Space Used: 55,159,308,815
  Shared Extent Space Used: 3,541,038,600
  Compression Savings: 31,073,914,126
  Compression Percentage: 52.87
  
  The expected result is:
  Total Space Used = "Non-Deduplicated Extent Space Used" +
  "Unique Extent Space Used" + "Shared Extent Space Used"
  
  When compression is used, the "Unique Extent Space Used" and
  "Shared Extent Space Used" display greater values than what they
  should be.
  
  
  IBM Spectrum Protect Versions Affected:
  All IBM Spectrum Protect server 7.1.5 or newer.
  
  Customer/L2 Diagnostics (If Applicable)
  None
  
  Initial Impact:
  Low
  
  Additional Keywords:
  TSM SP generate dedupstats directory-container directory
  container cloud TS001709731
  

Local fix

• "Total Space Used (MB)" is the total space used after
  deduplication and compression. It is the correct value for
  reporting purposes.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All IBM Spectrum Protect server users.                       *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See ERROR DESCRIPTION.                                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply fixing level when available.                           *
  * This problem is currently projected to be fixed in level     *
  * 8.1.8.                                                       *
  * Note that this is subject to change at the discretion of     *
  * IBM.                                                         *
  ****************************************************************
  

Problem conclusion

• This problem was fixed.
  Affected platforms for reported release:  AIX, Linux, and
  Windows.
  Platforms fixed:  AIX, Linux, and Windows.
  

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:

Fix information

• Fixed component name

  TSM SERVER

• Fixed component ID

  5698ISMSV

Applicable component levels