EVault - How to Manually Install and Uninstall the EVault Remote Disaster Recovery Packet Filter Driver

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Summary

This Knowledge Base article provides information about how to install and uninstall the EVault Remote Disaster Recovery Packet Filter Driver.


More Information

Prior to performing the procedure to uninstall the EVault Remote Disaster Recovery Packet Filter, please ensure that you have reviewed this entire Knowledge Base article.

Procedure

How to Uninstall the EVault Remote Disaster Recovery Filter

  1. Stop EVault Remote Disaster Recovery and set EVault Remote Disaster Recovery service to manual for the duration of this procedure.
  2. Dissolve any existing NIC team using the vendor-supplied software. Note: If the server does not use teamed NICs, please disregard this instruction and continue with step 3 below.
  3. If uninstalling on a passive server, disconnect the Principal (Public) network cable.
  4. From a command prompt change the directory to C:\Program Files\EVault\Remote Disaster Recovery\r2\bin
  5. Run: nfpktfltr uninstall " <installdir>\EVault\Remote Disaster Recovery\r2\drivers\nfpktfltr\<EVaut RDR version> "
  6. Delete C:\winnt\system32\drivers\nfpktfltr.sys
  7. Delete C:\winnt\nfpktfltr*
  8. Verify that the following key(s) have been removed using the following procedure:
    1. Open Regedt32.
    2. Go to HKLM\SYSTEM\CurrentControlSet\Enum\Root\nfpktfltr_mp (highlight nfpktfltr_mp if it exists) and select Security from the menu.
    3. Assign Full Access to the Everyone and System group if not already assigned. If there are any other groups without Full Access , assign them the same access as well.
    4. Then delete this key.
    5. Follow procedures 1-4 for CurrentControlSet1 and CurrentControlSet2 as required. The Miniport should be in the same location in the subfolders.
    6. Follow same procedure for HKLM\SYSTEM\CurrentControlSet\Services\nfpkfltr adding Full Control where required to remove the keys completely.
    7. To confirm they have been removed open Device Manager and select Show Hidden Devices , they should all be gone completely.

Restart the server before re-installing and verify the keys have been removed from Device Manager .

How to Install the EVault Remote Disaster Recovery Packet Filter

  1. Stop EVault Remote Disaster Recovery and set the EVault Remote Disaster Recovery service to manual for the duration of this procedure.
  2. From a command prompt change the directory to C:\Program Files\EVault\Remote Disaster Recovery\r2\bin
  3. Run: nfpktfltr install " <installdir>\EVault\Remote Disaster Recovery\r2\drivers\nfpktfltr\<EVault RDR version> "
  4. Select Yes to all the unsigned driver windows. (You may or may not see these).
  5. Clear the check box for the filter from on the EVault Channel NICs.
  6. Restart the server after installing the drivers.
  7. Once the server has restarted, check the packet filter configuration with the commands getfilter and getstate (the servers should respond with PassThru on the active server and Filter on the passiver server) and getloadstate (the servers should respond with Filter on both the active and passive servers.
  8. Reconnect the Principal (Public) network cable if installing on passive server.
  9. Set the EVault Remote Disaster Recovery service to automatic again and start EVault Remote Disaster Recovery.
  10. If required, perform a series of test switches Primary to Secondary and then Secondary to Primary again. This will verify the packet filter is installed and operational.


Applies To

As Indicated Above


Related Information

RDR-REFID-353

KBID-2336

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