Just a heads-up to a known problem if you run VMSECURE in a 2nd-level guest, you're running zVM 5.2 first-level and you have minidisk cache turned on in 1st-level for your 2nd-level SYSRES. See APAR VM63918 / PTF
UM31659. Symptoms are that VMSECURE fails to initialise (PX107 ABEND). Bypass is t o SET SHARED ON for the real pack holding the 2nd-level SYSRES minidisk (or take some other action that causes the minidisk to become inelegible for MDC). It bit me and it must have bitten whoever raised the APAR - hopefully thi s note will save it biting a few others. (Let me point out that VMSECURE's the innocent victim in this - anybody who's using the same interface will trip over the same problem - it's jus t that if you have VMSECURE installed then it's almost-certain that it'll b e the first component in your 2nd-level system to try to do this.) Regards Jeff
