1. Ensure all cluster Service Groups are offline on the node being reinstalled by moving them to another node, or taking them completely offline.

2. Open a command prompt and run the following commands: 

    haconf -dump -makero    (to ensure the config is saved/closed/unwriteable)
    hastop -local -force
    net stop llt /y

3. Make a backup copy of the %VCS_HOME%\conf\config folder.

4. Backup the following 3 files as they will be neded after reinstall:

    %vcs_root%\comms\llt\llthosts
    %vcs_root%\comms\llt\llttab.txt
    %vcs_root%\comms\gab\gabtab.txt

5. Once all 3 files have been backed up, delete them.

6. Ensure the license key and installed options for InfoScale/SFW-HA are known as that will be needed for reinstall.

7. Open the Registry Editor (start > run > regedit), and browse to HKEY_LOCAL_MACHINE\Software\Veritas\VCS\base.

8. Right click on the ..\VCS\base key and choose export, saving the .reg file to a temporary location. Name it VCS_base.reg.

9. Once the key is saved to VCS_base.reg, delete the following values under the ..\VCS\base key:

    - ClusterID
    - ClusterName
    - NodeID
 

STOP SERVICES

10. Open a command prompt and run the following commands:

    SFW-HA 5.x
    net stop vxvm
    net stop vxob
    net stop vxsas

    SFW-HA 6.x
    net stop vxsvc
    net stop vxsas

    InfoScale 7.x and above
    net stop vxsvc
    net stop vxsas

12. Choose to Uninstall the 'Veritas InfoScale *** for Windows' or the Storage Foundation HA x.x for Windows application, and run through the Uninstall wizard.

13. Reboot the server following the successful uninstall


REINSTALL

14. Install the 'Veritas InfoScale *** for Windows' or 'Veritas Storage Foundation HA  x.x' application, providing the license key (if necessary) and the same options as was previously installed.

15. Reboot the server following the successful install

16. Run the Veritas Cluster Configuration Wizard (VCW) and create a new temporary single-node cluster. The name of the cluster is not important as this will be overwritten. The important thing is to ensure the Private Heartbeat network is configured properly (user will be prompted to not configure this for a single node cluster, but it is necessary to configure this).

17. Once the new cluster has been successfully configured, continue with the steps below.

18. Open a command prompt and run the following commands:

    hastop -local
    net stop llt /y

20. Rename and replace the following files with the backup files created in Step 4:

    %vcs_root%\comms\llt\llthosts
    %vcs_root%\comms\llt\llttab.txt
    %vcs_root%\comms\gab\gabtab.txt

21. Locate the VCS_base.reg backup that was performed in Step 8, and double-click the file to import it into the registry. If this registry backup is not imported, future attempts to run the VCW (Veritas Configuration Wizard) will fail.

STARTING RESTORED CLUSTER

22. Open a command prompt and run the following commands:

    net start llt
    net start gab
    net start vcscomm
    hastart 

23. After 10+ seconds, run command: hasys -state and ensure this node shows as RUNNING

24. Launch the VCS Java Console and ensure all shows as healthy.

If issues arise, or the process is unsuccessful, please contact Veritas Technical Support for further assistance.