media sets and media

[David_Netzer]

for some resoun that i'm tring to understand i often see that the media that i moved to sertun media set, "moved" to another...

as a result (or resoun ) the wrong job was ritten to it


if someone can help me solve this... thansk.

[Jon_Rhoades]

The way Backup Exec chooses media can cause media to be "moved" or "Taken" by a media set.

When a job is run it first looks for media in its media set - if it finds no overwritable or appendable media It will then look for scratch media or new media - if it finds media there it will add it to the media set and write to it. If it fails to find any scratch or new media then it will look for any overwritable media in any media set. If it finds any it will move it to its media set and write to it. - This is the problem you are experiencing.

To avoid this make sure your overwrite protection is long enough that the tape can't be grabbed by another job. If it is overwrite protected it won't be grabbed and moved. Otherwise it could be.

[Ken_Putnam]

The solution described by Jon SHOULD work.

But the only way to absolutely guarantee that a job writes to a specific tape is to create partitions in your loader, then edit you jobs to point to the associated partition. 'Course this will mean the you need a job for each night of the week, but ...


See
http://seer.support.veritas.com/docs/262055.htm
http://seer.support.veritas.com/docs/206843.htm
http://seer.support.veritas.com/docs/241773.htm