On Sun, 22 Nov 2020 02:10:45 +0100, R.S. wrote: >IMHO it was the same error as nowadays: bad naming. >I didn't work with removable DASD, but I worked with physically >removable, human-operated tapes. And it was administrator responsibility >to have proper naming convention and unique volume serials. Exceptions >in justified scenarios only. > That uniqueness might have been enforced more automatically for tape than for DASD because the tape volume serial might need to match the numbered slot in the library.
The scenario justifying an exception might be for mass production of products distributed to customers: the volser must match that in the README. I once had a conflict between the volser in our README and a DASD volume. Fortunately, ops was able to dismount that DASD logically long enough for me to write a master tape to send to Manufacturing. An organization (SHARE?) once tried to maintain a world-wide registry of tape volser prefixes. They rapidly exhausted the name space. UUID? -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
