I'm thinking of going without a tape backup, for a financial system. I know some of you are adamant about tape, so I would appreciate you telling me what an asshat I am, so I can consider my options. We use clustered MySQL on two redundant Sun DB servers running ZFS, with two redundant management nodes. Data is fed to these systems by redundant protocol servers. I am thinking of running a small server to run a replicated MySQL database in ARCHIVE mode, which means it is still queryable, read only, but doesn't take much space. The server would be mirrored ZFS, and if possible we would also mirror off site. That is not always possible. We'll have about a terabyte of data, tops. I looked at tape systems, and anything over 300GB is very expensive. Thoughts?