Based on a recent study and suggestions I plan to come up with the post describing approximately how many tapes will we need to backup the data.
Ideal Data Transfer Rate = Amount of data to backup / Backup Window
Suppose you have 100 GB of data to backup and an 8 hour window then ideal data transfer rate would be 12.5 GB/hr . You would choose the Drive based on that requirement. After selecting the appropriate drive technology that provides the performance and selecting the cartridge capacity you need, we will focus on the how many cartridges you will need to have available.The number of cartridges depends upon the amount of data that you are backing up, the frequency of your backup, your retention period and the capacity of media used to store your backups.
A simple formula that can be used is
Number of Tapes= (total data to backup * Frequency of backup * Retention Period)/Tape Capacity
Following is an example:-
Total amount of data to...