On Tue, 2007-05-15 at 13:29 +0200, R.S. wrote: > To be fair... AFAIK the compression is made by CPU. *Mainframe CPU*. > What resoucre is more expensive ? > I know some installation (few dozen Terabytes) of virtual tapes on > disk. The most expensive DASD is used to waste the most expensive CPU > cycles and store the least important (from the performance point of > view) data.
Must admit I had similar thoughts. We migrated a customer off TMM because it was occupying half the (mainframe) DASD, and HSM was using inordinate amounts of CPU. More than the production (i.e. money earning) regions ... The software solutions (at the time) got short shrift in the ensuing evaluation - hardware VTS won the day. If Ron's idea was to get a hearing, it'd have to have similar attributes to the VTS - i.e. robust hardware running robust software. Makes a Wintel solution a tough sell ... Shane ... ---------------------------------------------------------------------- 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
