Forum Discussion
obi_jay wrote:
Also, if someone is able to clarify whether overwrite protection protects an entire tape, or simply the data from a job while allowing appends. I suspect it's the former, but if that's the case i don't understand how multiple jobs can ever run to a single tape with overwrite protection set.
Overwrite protection protects the entire tape. Multiple jobs can run when the other jobs run in "append", not "overwrite" mode. Therefor they are "adding"/appending information to the end of the tape.
- selva48 years agoLevel 4
Hi OBJ,
I will try my best to give you a better understanding regarding the OPP for tapes.
Lets take your environment.
Daily Media set: OPP: 6 Days.
Lets say the tape capacity is 2 TB and your backups (Multiple or a single job) data size is 1.8 TB(Approx)
Tape follows MEdia set which is comprised of APP and OPP.
So, once the job of 1.5 TB have been kicked off to the tape, the job will complete after writing 1.5 TB of data and the moment once the backup completes, OPP starts.
I conclude, OPP is for the data which is inside the tape.
After wrting the backup to the tape, the 1.5 data will be protected for 6 days(OPP) and its upto you to choose a valid APP for filling up the remaining 0.5 TB in the tape.
Please revert for further queries.
Thanks,
Selva.
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