There is however one feature that contradicts this a bit: once a user has ACCESSed a directory, CMS caches it, even after a RELEASE command it still is cached. And, here it comes: the SFS server informs that CMS user about updates to the files in the directory (like a GRANT command that changed authority or a file's timestamp being updated).
2009/3/25 Alan Altmark <[email protected]>: > On Wednesday, 03/25/2009 at 12:05 EDT, Alan Ackerman > <[email protected]> wrote: > >> Can someone explain this restriction to me. If I have accessed a >> file mode directory, doesn't the SFS server know that? > > ACCESS of a filecontrol directory doesn't really "access" anything. CMS > reads the directory and caches the information, then closes the directory. > That same sequence could just an app making CSL calls. So, no, the > server doesn't know you've accessed a filecontrol directory. > > ACCESS of a dircontrol directory is different since you have a consistent > (fixed) ACCESS-to-RELEASE view of the file content. The SFS server has to > maintain a "bookmark" for you, and so must keep track of ACCESS and > RELEASE. > > Alan Altmark > z/VM Development > IBM Endicott > -- Kris Buelens, IBM Belgium, VM customer support
