BE can't compress data writing to tape
There is BE 2012 which according to daily schedule creates backup using the method "disk to disk to tape". A writing process to a tape run immediately after a disk backup finishes and in this case da...
- If you are using software encryption with hardware compression then yes. Encrypted files compress very badly. See my article below https://www-secure.symantec.com/connect/articles/compression-short-explanation
Software compression not appearing for a Duplicate is expected - http://www.symantec.com/business/support/index?page=content&id=HOWTO22915
If you would like your backups to be encrypted, then better to use software compression than hardware compression. As when software compression is used, BE will first compress the files and then encrypt them, whereas if you hardware compression, it will compress data post the encryption and this is not effective as the data becomes randomized.
