After my questions in a couple fora went unanswered, I looked further into NFS documentation:
z/OS Network File System Guide and Reference SC26-7417-13 ... File time stamps in UNIX format are part of the attributes required by the NFS protocol for NFS client/server communication. ... 2. MVS maintains the PDSE member create/change time stamp (mtime) in the PDSE AX cell. The Server uses a FileAccessMethodService (FAMS) call ... A Google search for FAMS returns the NFS reference, a SHARE presentation, a RFE, and several APARs. Where is this thing documented? It should be useful. Also, from the NFS Guide: ... The server uses the following main time stamp sources to generate UNIX time stamps for MVS z/OS conventional (legacy) file systems: DSCB (data set control block) Master Catalog data set attribute extension (AX) cell PDSE member attribute extension (AX) cell ISPF member statistics TOD (current time_of_day on the server side). Rube Goldberg. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN