Mannual Tape cartridge management

Hi,

We are lookinig at a follwing situation :-

SCENARIO - with NBU 7.5

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1. Based upon policy (frequency & retention and original size) about 250 nos. tapes are needed.

2. This results in large Tape library (robotic), to hold and manage all the cartridges in the large tape library, whose cost is prohibitive :-((.

3. Alternatively take much smaller Tape Library with say 50 tape cartiridges, and move tape in-out of the (much) smaller tape library (non-robotic). In other words work things mannually.

Question

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1. Do we need extra (or other) items, e.g. licenses and software components etc. (Symantec-NBU or 3rd party etc.).

2. What are mannual steps that would be needed to done which otherwise would have been automated?

3. Is this is a do-able choice, we should look into at all ?

4. What are issues and Caveat?

Any guidance (paper, documents, procedures etc.) will be greatly appreciated.

Regards