Dave, I can think of 2 things, that you might want to look further into:
The DS8000 was introduced with the capability to be equipped with both fast (expensive) and cheap (slower) storage. The latest DS8000 announcements mentioned more interesting morroring/DR features. Have a look at the new TS7700 Virtual Tape Engine: http://www-03.ibm.com/servers/storage/support/tape/ts7700/planning.html It is the next generation of VTS: emulated tapes and tapedrives with diskcache and taperobot. Its grid options allow you to mirror tape datasets over two sites. It has a huge 20 TB disk-cache, which allows you to almost run all your tape i/o from the disc cache. Backing storage will be real tape so relatively cheap. Maybe it is too large (and therefor too expensive) for you, but you could move data from disk to this tape device with almost no performance penalty. Kees. "Gibney, Dave" <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>.. . > 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? ********************************************************************** For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 ********************************************************************** ---------------------------------------------------------------------- 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
