Tom, >>.... However, there is a flag in the NVR that says "I am a deferred >>generation" (probably in the catalog as well) and I don't know what >>trouble that might cause later. >> >Wouldn't that be the same flag, Bruce? As I understand it, the BCS just >points to the volume and everything else is kept in the VVDS.
Active generations are kept in the B (GDG base) record in the BCS. Datasets that are deferred or rolled out have a type A (simple dataset) record. When you create a +1 SMS gds, it is cataloged with type A record until you roll it into the GDG base (type B) record. If the GDG is already at the limit, the oldest generation is rolled off the B record to make room for the +1. If the GDG has scratch, the rolled off generation is uncataloged and scratched. If the GDG has noscratch, the rolled off SMS-managed generation is recataloged in a type A record. I run scans every now and then looking for gdgs with noscratch and fix them. Since I use utilities to find deferred or rolled out GDS so I don't know what flag bits are used or where to find them. Regards, John ---------------------------------------------------------------------- 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
