Storage Capacity:

Storage Capacity:

Storage Capacity: Data recording density refers to the amount of data. which can be stored on a given length of tape. it is measured in bytes per inch (bpi). or the number of bytes characters, which can be stored per linear inch of tape. Tape density varies form 800 bpi in older systems to 77,000 bpi in some of the most modern systems. Hence if a 2400 feet tape has a data recording density of 800 bpi its storage capacity will be 2400+ 12 inches +800 bpi =23+ 10’ bytes = 23 giga bytes. note that. this is the total storage capacity of the tape. its actual storage capacity storage available for storing user data, is much less, due to the use of IBGs. In fact, the actual storage capacity of a tape may be anywhere from 35% to 70% of its total storage capacity. depending on the storage organization.