John, You do not give any details about your setup of rmm and RACF, but I would guess that you are using rmm parmlib option TPRACF(P) or TPRACF(A). It is very likely that it is rmm creating the TVTOC and the first data set gets added either by OPEN issuing RACROUTE in DATASET class or by rmm when the data set is closed.
You could consider larger logical volumes sizes since VTS now supports this option, or you have to avoid the problem by not using both TAPEVOL class and the TAPEDSN option. Many people do use TAPEDSN without TAPEVOL. As long as you have tape management, and you do, you can consider running without TVTOCs, and most likely this means not using TAPEVOL. There are other considerations such as BLP and use of ustilities such as IEHINITT. Limitations such as this are just some of the reasons why we have previewed new tape data set security options in z/OS 1.8. http://www- 03.ibm.com/servers/eserver/zseries/zos/overview/zosnew18_preview.html Mike Wood RMM Development ---------------------------------------------------------------------- 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
