Rollback and Retry Options

B.

In a distributed installation of a software like vRealize Automation, if the installation fails using the installation wizard, an administrator may need to roll back and attempt the installation again. The options for doing so are:

A. Reboot the vRealize Automation appliance: This option is not recommended as it may cause additional issues and is unlikely to resolve the underlying problem that caused the installation to fail in the first place.

B. Revert to the snapshots taken during the installation process: This is the recommended option for rolling back and attempting the installation again. Before starting the installation process, it is a good practice to take snapshots of the virtual machines that will be involved in the installation. If the installation fails, the administrator can revert to the snapshot taken before the installation started, and then attempt the installation again.

C. The installation will restart automatically: This option is unlikely, as the installation wizard typically requires human interaction to proceed.

D. Select the rollback option provided in the wizard at the time of the failure: This option may be available in some installation wizards, but not all. If the wizard provides a rollback option, it may be useful in some cases, but it is not a guaranteed solution.

In summary, the recommended option for rolling back and attempting the installation again is to revert to the snapshots taken before the installation started. This provides a clean slate to attempt the installation again without any remnants from the failed installation.