While you plan to install the product, you may want to upgrade your Windows operating system to one of the supported operating systems. Symantec recommends performing the Windows upgrade before installing SFW HA.

In some circumstances though, you may need to install SFW HA before upgrading your Windows operating system.

If you install SFW or SFW HA before upgrading your Windows Server 2008 operating system, you must run the SFW utility called FixVDSKey.bat and then repair your installation, after you complete the Windows Server 2008 R2 or SP2 upgrade. The SFW utility restarts the Storage Agent (VxVM) and VDSservices.

The SFW utility is located at: %VMPATH%\FixVDSKey.bat

See Repairing the SFW or SFW HA installation.