On Monday, 02/16/2004 at 03:05 CST, Adam Thornton <[EMAIL PROTECTED]> wrote:
> Does my exclusive-write copy become the "real" copy when everyone who > had links to it has logged off? I guess that's what's confusing me: > when I do the updates to it, and I'm really changing my private copy, do > those changes get propagated back to the rest of the world? Your exclusive-write copy does not become the "real" copy until you save it (per the book) by writing to /save, wherein Linux will issue the DEFSEG and SAVESEG for you when you subsequently close the DCSS file. Everyone using the segment must then reload it to get the updated copy. Until they do, they will be looking at the old copy (which is now class P, pending purge). Reloading is by re-IPLing or by purging and adding the segment again. The linux term "exclusive write" is the same as the VM term "non-shared copy". It is NOT the same as a DCSS defined with Exclusive Write (EW) attributes, and it does not prevent access to the existing copy of the DCSS. Alan Altmark Sr. Software Engineer IBM z/VM Development
