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IC92388: THE FILE OR DIRECTORY IS CORRUPTED AND UNREADABLE FOR RESTORED FILES BACKED UP FROM A DEDUPLICATED WINDOWS DISK

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APAR status

  • Closed as program error.

Error description

  • Restored files that were backed up from a Windows 2012
    deduplicated volume might be inaccessible. A typical message is
    
      The file or directory is corrupted and unreadable
    
    The problem occurs because the deduplication reparse point is
    restored along with the rest of the file data. In this case, if
    the data is restored to a non-deduplicated disk, or Windows
    deduplication is otherwise unable to utilize the reparse point,
    the file will appear to be corrupted or unreadable.
    
    This is a problem with restore, not backup. The backed up data
    is otherwise intact.
    Note: This is Windows 2012 deduplication. Not Tivoli Storage
    Manager deduplication.
    Initial impact: Medium
    Platforms Affected: Windows 2012
    Additional Keywords:
    TSM 0x80070570
    

Local fix

  • Use the Microsoft Windows utility fsutil.exe to remove the
    reparse point from the affected files:
    
       fsutil reparsepoint delete <filename>
    
    where <filename> is the name of the affected file. Use double
    quotation marks around the file name if the file name contains
    blank spaces.
    
    Examples:
    
       fsutil reparsepoint delete e:\data\income2013.txt
       fsutil reparsepoint delete "e:\data\billable hours.csv"
    
    If fsutil.exe returns an "access denied" error, boot the
    system into "Safe Mode", then try the fsutil.exe command again.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: Backup-archive client version 6.4 is         *
    *                 affected on Windows 2012 platform.           *
    ****************************************************************
    * PROBLEM DESCRIPTION: See "Error Description"                 *
    ****************************************************************
    * RECOMMENDATION: Apply fixing level when available. This      *
    *                 problem is currently projected to be fixed   *
    *                 in level 6.4.1. Note that this is subject    *
    *                 to change at the discretion of IBM.          *
    ****************************************************************
    TSM incorrectly sets dedup reparse points after restore of a
    file, deduplicated by native Windows 2012 deduplication.
    

Problem conclusion

  • TSM does not set Windows 2012 reparse tag any more.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC92388

  • Reported component name

    TSM CLIENT

  • Reported component ID

    5698ISMCL

  • Reported release

    64W

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-05-17

  • Closed date

    2013-07-02

  • Last modified date

    2014-01-31

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

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

Modules/Macros

  • DSM      DSMC     DSMCSVC
    

Fix information

  • Fixed component name

    TSM CLIENT

  • Fixed component ID

    5698ISMCL

Applicable component levels

  • R64W PSY

       UP

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Document Information

Modified date:
31 January 2014