Re: User ASP

[PaulMmn <PaulMmn@xxxxxxxxxxxxx>]

User ASPs are FUN!  (:  Usually, the message you get indicates that the
user ASP is overflowing into the System ASP (#1).  Are you sure that -your-
libraries are not in the User ASP?

When ASP #1 overflows, you get the normal "System storage at critical
level.  Tell programmers to clean up their act" messages.

What usually happens is that you have to (1) reduce the storage space used
by the overflowing ASP below the max disk allocated to the ASP.  Then (2)
Reset the ASP.  Used to require an IPL, but I believe there is a procedure
that doesn't require one.  The reset basically moves any object 'hanging
out' of the overflowed ASP back onto the disks of the ASP so it's all
self-contained.

I don't know how much of a performance hit ASPs cause; until recently our
production machine had most of its data in a User ASP, with just the system
and office stuff in ASP#.

No real problems with the ASP as far as using it; you just have to be
careful with Restore and Create Lib commands:  there's an ASP parameter to
tell the system where to put things.

There's no way to stop an ASP from overflowing, other than giving it a lot
of disk so everything fits.

--Paul E Musselman
PaulMmn@ix.netcom.com





>Hey Folks!
>
>In order to prevent my group (blushing) from taking over DASD that was
>purchased for other projects on the development box (320 2052 4-way running
>V3R2M0 on the latest CUM), my client implemented user ASP.  I've always
>avoided user ASP, as I was always told it was a performance hog, so I know
>absolutely _nothing_ about it.  Today, I was creating a new environment for
>our next BPCS implementation, and noticed message CPF3216 which (paraphrasing)
>states "storage for file _x_ not all on requested unit, however, member _y_
>added successfully".
>
>I'm guessing here, but it sounds like the ASP that is supposed to be protected
>from my group is being overflowed into anyway.  Now, I don't want to "cut my
>nose off to spite my face" here; however, if my overflow assumtions are true,
>I also don't want to put up with a performance degradation that serves a non-
>existent purpose.  Are my assumptions correct?  If so, is there a way to
>implement user ASP that will prevent overflows from occurring?
>
>TIA!
>
>Dean Asmussen




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