Dave, Even if you mirror data to DASD I would still recommend that you still backup to tape.
Tape introduces its own challenges, but it has the benefit that it is designed to be taken off-line. Being off-line makes it much harder to accidently or maliciously delete, and in the event that you are ever in litigation the fact that it is off-line and off-site is often in your interests. A vault on the other side of the campus would not satisfy any credible business continuity auditor (unless your campus is at least several miles across). Gerard > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On > Behalf Of Gibney, Dave > Sent: Friday, October 13, 2006 2:46 AM > To: [email protected] > Subject: Storage Philosophy Question > > As a State agency, it's the time we ask for money for the > upgrades/replacements for the next year or two. > Our z800-0B1 lease runs out and so we'll be looking at z9BC. We also > have EMC 8230(?) dasd and 3590-A tape drives. A couple terabytes active > data, and more in migration/backup, etc. We're pretty small. > > We have no mirroring at this time, we move tapes back at forth from a > vault on the other side of campus. The administration seems willing to > allocate funds for a more robust Business Continuation infrastructure. > > It's been suggested by the Operations Manager and also my boss(es) > that we move to a "tapeless" model. That is that we acquire sufficient > dasd and establish a mirror offsite. We would cease DFHSM migration and > do FDR or DFHSM version backups to dasd. > > It appears the tape might be more expensive than disk. And you don't > need people to mount disks. We don't have a silo. > > The questions I've been asked to ask are: Is anyone else doing > something like this idea? Does it seem feasible? Or is it a really bad > idea? > > I'm asking here because this seems a place to get some good thoughts > on this fast. My Director needs to talk with her VP next week, or maybe > the week after. ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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
