Wanted to know what are the best practices for backing up the SharePoint farm and Sql Server DBs. I'm having 3 tier farm having 2 WFEs, 2 app servers and 1 sql server with clustering and mirroring enabled. On what frequency I need to take the backup of Sql Server Content DBs, SharePoint's entire farm backup.
Is it mandatory that I need to take backup the content DBs on a Tape?