Overwrite vs Append

[tom11011]

I'm trying to understand if I have the concept right.

Let's say I have one tape and 2 backup jobs.

I don't want the tape to be overwritten, except by the first job because it contains old data from last week.

So I put the tape in the drive. I set the first job to overwrite and the second job to append only.

Will this protect the first job from being overwritten by the second or am I missing the intent of this concept?

thanks.

 

[steveot]

Correct providing the job is set to append only and not append/overwrite

 

[tom11011]

ok, thanks. But does the tape have to be erased first? I mean, what about the data that already existed on the tape from last week. Since I set the second job to append, will it overwrite the job from last week?

 

[steveot]

You would have to configure your media set and they can handle that for you

The basics of Advanced Device and Media Management for VERITAS Backup Exec (tm) for Windows Servers

http://seer.support.veritas.com/docs/192265.htm

An explanation of the "Overwrite Protection Period" and the "Append Period"

http://seer.support.veritas.com/docs/237374.htm