On Tuesday, 03/11/2008 at 03:17 EDT, Rob van der Heij <[EMAIL PROTECTED]> 
wrote:
> On Tue, Mar 11, 2008 at 1:59 AM, Alan Altmark <[EMAIL PROTECTED]> 
wrote:
> 
> >  While trying to reconstruct a source directory from an object 
directory
> >  might seem logical, far too much information is "lost in 
translation".
> 
> Obviously it would be really easy to write a wrapper around DIRECTXA
> that also runs DIRMAP (or what it is called these days) and extra
> sanity checks *before* bringing the directory online. Sometimes it
> makes sense to also detect the change to mini disks that are currently
> linked by logged-on users (typically for something you need to do
> after the new directory is online).

IMO, sanity checks are in the domain of directory maintenence products.

> While you can keep a lot in GLOBALV, it might be nice if DIRECTXA
> would place de FSTAT of the source directory in the object in a way
> that CP can tell it us. If you also keep your set of copies, it would
> identify which source is currently online.

While GLOBALV is useful for setting default behavior (e.g. DEFAULTS), I 
wouldn't propose using it as a database of directory metadata.  Adding 
USER DIRECT metadata to the object directory seems useful and is 
relatively straightforward to implement.  I'd want filename, file 
timestamp, and source mdisk.

Alan Altmark
z/VM Development
IBM Endicott

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