I consider it a tapeless enviornment even though I use tape as back-store as it is a closed system. No media out, no media in, except to add capacity. I don't treat the tapes inside the environement any different than I would for a disk drive. If anything, my increamental increase is smaller at 20GB raw per tape.
There are newer systems, i.e. IBM 7720 and the Bustec systems, which uses disk for backstore. Thanks Bill Bishop Specialist Mainframe Support Group Server Development & Support Toyota Motor Engineering & Manufacturing North America, Inc. bill.bis...@tema.toyota.com (502) 570-6143 "van der Grijn, Bart (B)" <bvandergr...@dow.com> Sent by: IBM Mainframe Discussion List <IBM-MAIN@bama.ua.edu> 11/18/2009 11:19 AM Please respond to IBM Mainframe Discussion List <IBM-MAIN@bama.ua.edu> To IBM-MAIN@bama.ua.edu cc Subject Re: Tapeless??? Bill (and others that have stated they are tapeless), at the end of the day, where does your inactive data (i.e. the virtual tape) reside? On a physical tape, a physical disk, other? I'm trying to understand if we're all working of the same definition of tapeless (in my mind, a back-end physical tape is not tapeless). Thanks, Bart -----Original Message----- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of William Bishop Sent: Wednesday, November 18, 2009 10:55 AM To: IBM-MAIN@bama.ua.edu Subject: Re: Tapeless??? We replicate all tape files offsite. Our disk system environment is kept replicated to a second set of disks. Backups taken to virtual tapes locally are copied to the second tape library. This is both full volume and HSM. Long-term data retention is managed by retention dates and expiration policies, just like physical tapes. We basically support our own DR site at another of our facilites. We own a processor, which is kept at minimal capacity,with no software licenses, designate the box as a DR box, and contract for the right to bring it up to full capacity in the event of a disaster. We test a coulple times a year, and are as current as the last disk replication cycle gets us. We can be back online in a couple of hours if need be. Thanks Bill Bishop Specialist Mainframe Support Group Server Development & Support Toyota Motor Engineering & Manufacturing North America, Inc. bill.bis...@tema.toyota.com (502) 570-6143 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
