Hello Beadmin, Here is a link to the LTO media guide. [URL]   If you look on page26 it explains that the media is good for 260 full backups.  Please let us know if you have any other questions.
I want to know about the Life cycle of LTO4 tapes, we have TL4000 with LTO 4 drives. After how many times of use should I retire a tape..
How often should I change the LTO4 tapes?