On Tue, 10 Feb 2009 13:04:42 -0600, Hal Merritt wrote: > >Every record of every file is in a unpublished, often proprietary format.
Security by obscurity? It often is easy to figure out. >The data is then compressed and written in yet another proprietary >format over several physical devices. Iceberg and RVA compress data. Other DASD subsystems don't, AFAIK. Does STK still market the SVA? >Encrypted data would defeat most all compression algorithms, >increasing raw storage requirements substantially. That would only apply if the compression was done after the encryption. If it was compressed first, then encrypted, it would not. -- Tom Marchant ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
