Although my post today is probably rhetorical question, I wanted to find out whether this matters anymore or not.
Back in the late 2000's, IBM developed encryption facilities within the tape drives, as this is also where compression was being performed. The idea was that compression of data must occur before encryption, as encrypted data does not compress well, and obviates the use of compression. Nowadays, we've got pervasive encryption on z/OS. As a result, any data that is backed up (for instance, ADRDSSU/FDR), is already encrypted. Also, we now have zEDC, to compress data prior to storage, typically on disk. To my question: With all the encryption and compression being performed on disk, to what degree does TAPE COMPRESSION matter anymore? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
