Are there any issues to watch out for when encrypting tape?
The most important thing to consider with tape backup encryption is what stands in the way between you and the decrypted data set. With older LTO versions (LTO 4 in particular), encryption added about 40% to data restore time. It took about an hour to record a TB of data to LTO 4, and three hours to restore that TB. When you were dealing with media-based encryption, the same amount of data took nearly 5 hours to restore. So, I guess you should check on the impact of whatever method of encryption you are using on data access speeds.
The other point I would make is that a lot of backup encryption systems use crypto keys. That means you need a key management system. Some of these are simple to implement, others much more time-consuming, resource intensive, and otherwise challenging. Be sure to probe the management requirements of the entire crypto process before selecting an approach.
Dig Deeper on Tape backup and tape libraries
Related Q&A from Jon Toigo
Linear Tape File System and Linear Tape-Open technology can improve user access and durability in your tape archive system. Explore specific products... Continue Reading
Parallel computing technology has not seen widespread use in the business world, but could that change? Jon Toigo discusses parallel I/O for ... Continue Reading
Software-defined storage architecture can be implemented in several different forms that all expose software functionality to hardware across an ... Continue Reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.