IC76942: DATA PROTECTION FOR EXCHANGE MAILBOXHISTORY INFORMATION BACKUP MAY FAIL WITHOUT AN ERROR OR HANG

APAR status

• Closed as program error.

Error description

• The Mailboxhistory information, that Data Protection for
  Exchange backs up, consists of information, collected from the
  Active Directory, about the location, Name, alias and trusties
  of individual mailboxes, stored in a mailbox Storage Group
  (Exchange Server 2003 or 2007) or mailbox Database (Exchange
  Server 2010).
  
  In case of a large installation and/or a complex Active
  Directory there is the chance, that the query of the Active
  Directory will time out.
  In that case, the backup of the Exchange Server will not be
  performed.
  
  There is no error message reported, indicating that the backup
  of the mailboxhistory information failed.
  
  This problem will also occur with the Tivoli Storage FlashCopy
  Manager for Microsoft Exchange Server.
  
  Data Protection Versions Affected:
  Tivoli Storage FlashCopy Manager for Microsoft Exchange Server
  version 2.1 and 2.2
  Tivoli Storage Manager for Mail Data Protection for Microsoft
  Exchange Server version 6.1
  
  Initial Impact: LOW
  
  Additional Keywords:
  TDP Exchange FCM Mailboxhistory ActiveDirectory
  

Local fix

• Please refere to DCF 1501658 for required action, to resolve
  the reason for this problem.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of Data Protection for Exchange        *
  *                 running 6.1.x releases.                      *
  ****************************************************************
  * PROBLEM DESCRIPTION: See ERROR DESCRIPTION.                  *
  ****************************************************************
  * RECOMMENDATION: Apply fixing level when available. Until the *
  *                                                              *
  *                  fix is available, please refer to the tech  *
  *                                                              *
  *                 note located at: http://www.ibm.com/support/ *
  *                                                              *
  *                 docview.wss?uid=swg21501658                  *
  *                 which will describe how to manually update   *
  *                 the tdpexc.exe.config and tdpexcc.exe.config *
  *                                                              *
  *                  files with the necessary changes.           *
  ****************************************************************
  Data Protection for Exchange uses Microsoft .NET Framework
  functions to get information about mailboxes from Active
  Directory. A Microsoft .NET Framework Lightweight Directory
  Access Protocol (LDAP) Client that uses the .NET
  DirectorySearcher class to query the Active Directory
  directory service may receive an incomplete result set. This
  problem is more likely to occur if the network connection
  between the client and the server is slow or if the Active
  Directory server is busy. The client does not receive an error
  that reports this condition from the server. Therefore, the
  client does not know that it has received an incomplete result
  set.
  

Problem conclusion

• Changes were made to the tdpexc.exe.config and
  tdpexcc.exe.config files to have .NET DirectorySearcher
  perform a check for the completion of the received data and
  reissue the query if necessary.
  

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:

Modules/Macros

• TDPEXC
  

Fix information

• Fixed component name

  TDP EXCHANGE WI

• Fixed component ID

  5698DPXAP

Applicable component levels

• R61W PSY

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