Current vSphere version is 5.0
All VM were backed up using HP data protector using Traditional Method (i.e. Backup agent installed on the guest operating system and were back up)
Plan is to upgrade the vSphere from ver5.0 to ver.6.0
Post upgrade will there be any issues/trouble related to backups. Do I need to take any precautionary steps related to backup infrastructure before the upgrade of vsphere
Please provide your inputs/thoughts
Since you're taking backup using the agent installed on guest method, you should not have problem.
Since you're taking backup using the agent installed on guest method, you should not have problem.