This is probably one of those cases most people will *never* have to worry about, but to perhaps spare you the hours I and the HP RC spent trying to figure out what was going on: The NEWSET command in VOLUTIL (and the corresponding NEWMIRRSET command in MIRVUTIL) has an optional parameter called "gen-number"; which can take on any value from 0 to 32767. It can be used for....... well, anything that strikes your fancy, apparently: Number of volume sets; number of times this volume set has been created; whatever. Default is zero.... and per HP RC, almost all sites they know of accept that "0" default for all their volume sets. Being the type of person who has a natural inclination to turn right if I'm part of a group that is given the order to "left face", mostly on a whim (and because we are now up to four volume sets on our 959KS/400), I punched in a "4" for the gen-number parameter. Created volume set; all appeared to be well..... Then I did: DISCFREE C All 29 of our DISC LDEVs are correctly listed out; including the new mirrored volume set where I used gen-number = 4. Still looking good, me thinks... Then I just happen to try: DISCFREE (no parameter - results in DISCFREE prompt): Enter [<format>] [,<ldev>] [,<vsname>] If I enter (for example): C,,USER all is well (USER has gen-number = 0). *BUT*: If at same prompt I enter: C,,XXXX where XXXX is new user volume with gen-number NOT = 0, then: BZZZZZST !!!!..: DISCFREE does NOT see it at all. < interlude: maybe tables messed up ?? SCRATCH and rebuild volume set just to be sure; etc..... > SUMMARY: After RC and I checked and double checked everything we could think of, HP figured it out: DISCFREE has a bug; it will NOT see any volume set that has gen-number not equal to zero; if you choose a DISCFREE option where you put in a volumeset name. SR has been generated: SR # is: GAD25523 (first "new format" number I've gotten, since RC shifted over to new system). Since my volume set was brand new and empty, I took the easy path: Redo NEWMIRRSET one more time; this time with gen-number = 0. DISCFREE is happy. THE HANGING QUESTION: What else if anything besides DISCFREE might not see a volume set if gen-number is NOT equal to zero ??. The easy workaround: Stay with gen-number = 0 (if it hurts when you hit your head against the wall, then don't do that...). As you might expect, fixing this is likely to get a LOW priority. So it goes.... Ken Sletten