Tom Marchant wrote: > On Mon, 27 Apr 2009 09:59:51 +0300, Binyamin Dissen wrote: >> Do all products (HSM, FDR, etc.) use the string MIGRAT as the VOLSER? > > FDR does. Actually, it's ABR. ISTR that this behavior is optional, but I > don't recall what is in the VOLSER if the option is not selected. The > original VOLSER perhaps. >
Another point to note is that ABR sets the high-order bit on in the DSCB CCHHR field of the catalog entry when the data set is archived and the original volume serial is retained. I do not know if this bit setting occurs or not when the volume serial of MIGRAT is used. I believe that the usual restriction of "VTOCs must be in the first 64K cylinders of a volume" must therefore become "VTOCs must be in the first 32K cylinders of a volume" when ABR (without MIGRAT at least) is used to archive data sets. I would guess that all volumes had less than one thousand cylinders when this logic was devised. Cheers, Greg ---------------------------------------------------------------------- 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
