Equisys technical notes

Technical guidance, explanations and fixes for our products

PRB: Primary and Backup servers close down soon after starting on a Zetafax failover system

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ZTN1933

ID: ZTN1933

This Zetafax technical note applies to:

  • Zetafax 2011 and later
  • Windows Server 2008 / 2008 R2

Symptom

In a Zetafax failover configuration, the Primary and Backup servers close down unexpectedly soon after starting.

Cause

In order for a Zetafax failover system to function, it uses a heartbeat between the primary and backup by checking the ‘Last Access Time’ property on a system file stored on the Zetafax ‘Shared Data’ folder.  On Windows Server 2008, Microsoft has disabled this property by default.

Resolution

On the Windows server machine where Zetafax ‘Shared Data’ folder is stored, set the following registry setting:

Registry Editor Warning

WARNING:  Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Equisys cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved.

For information about how to edit the registry, view the " Changing Keys and Values" Help topic in Registry Editor (REGEDIT.EXE) or the " Add and Delete Information in the Registry" and " Edit Registry Data" Help topics in REGEDT32.EXE. Note that you should back up the registry before you edit it.

  • Log onto the machine using an account that has local machine administrative privileges.
  • From the start menu, click Run.
  • Type the following: regedit
  • Click OK.
  • In the Registry Editor, navigate to the following registry key:
  • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem\NtfsDisableLastAccessUpdate
  • Give it a value of 0.
  • Restart the machine to apply the changes.

Status

This has been identified by Equisys as a problem with the software versions given above.

Last updated: 4th April 2013 (JW/MW)

Keywords: ntfs shutdown closes crash

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