On Thursday, 03/15/2007 at 10:55 EST, "McKown, John" <[EMAIL PROTECTED]> wrote: > > The CP Directory has information for each user. At logon time, > > the information about a single user is available very quickly. > > This makes sense to me. IIRC, the VM directory is memory resident so all > this information is "instantly" available, making for a very fast logon.
Actually, it isn't. When a user logs on and a VMDBK is created for them, SOME of the information in the directory is cached in memory. Other things, such as LINK, require a trip to DASD. Since reading the user's directory entry is a relatively rare event, that's ok. Alan Altmark z/VM Development IBM Endicott
