You need to cycle back and check your LTO tapes regularly for readability.
Backblaze B2 automatically checks every file for consistency on a regularly basis.
B2 customers can rely on 11 nines of durability - that means they can recover decades old files instantly. Data stored on LTO has to be migrated at least every 10 years in order to be accessible.
Every day our customers recover files that have been stored in the Backblaze cloud for the past 10 years.