Most all backups are WORN. They are created, perhaps sent off site, and returned to the scratch pool never having been read. An archival backup would not be returned to scratch because it would most likely exceed its expected life while in storage.
-----Original Message----- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of McKown, John Sent: Tuesday, June 22, 2010 10:33 AM To: IBM-MAIN@bama.ua.edu Subject: Re: Disk replacing Tape? > -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:ibm-m...@bama.ua.edu] On Behalf Of Hal Merritt > Sent: Tuesday, June 22, 2010 10:29 AM > To: IBM-MAIN@bama.ua.edu > Subject: Re: Disk replacing Tape? > > Interesting. Your experience is comparable to some cost > studies we did some years ago (with much more expensive > DASD). The root issue seems to be to get folks to recognize > the true TCO of a tape based solution. > > Some, for example, discount the human costs because that > human is already there and has spare time. Some might ignore > HVAC, power, and physical footprint simply because those > costs are not in their budget. > > Personally, I agree that a WORN* tape solution may add value > for many for a good while yet. > > WORN = Write once, read never. > gee, if really WORN, then I'd suggest writting to DD DUMMY or /dev/null. -- John McKown Systems Engineer IV IT ---------------------------------------------------------------------- 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 NOTICE: This electronic mail message and any files transmitted with it are intended exclusively for the individual or entity to which it is addressed. The message, together with any attachment, may contain confidential and/or privileged information. Any unauthorized review, use, printing, saving, copying, disclosure or distribution is strictly prohibited. If you have received this message in error, please immediately advise the sender by reply email and delete all copies. ---------------------------------------------------------------------- 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
