On Tue, Jul 7, 2015 at 10:39 AM, Richard Pinion <[email protected]>
wrote:

> Naw, card punch and card reader are your best friends in such an
> emergency :)
>

​You laugh. But I had to do that many years ago. I messed up the VTAM proc.
No VTAM ==> no terminals. Back to the 129 to punch out some JCL to IEBPTPCH
the VTAM proc to cards. Then interpret them. Then​ find the mistake and
replace it. Now punch the IEBUPDTE and read it in. Oh, wow. I am so happy
to have multiple system images now. And I _never_ take them all down at
once. Well, unless we have a power failure.



>
>
>
> --- [email protected] wrote:
>
> From:         John Eells <[email protected]>
> To:           [email protected]
> Subject: TSO-only proc (was Re: Product Remove from z/OS)
> Date:         Tue, 7 Jul 2015 11:37:50 -0400
>
> That works for updating the procs themselves, and it's an outstanding
> precaution everyone should use as a matter of routine.
>
> But it does not work so well for a volume failure, when a data set named
> in the proc is moved (and referenced by volser) or renamed, or when the
> concatenation limit is exceeded for one of the DD names after a change
> causes a data set to extend (I can hear TomC already, yelling,
> "but-but-but...don't *do* it that way to begin with!"), or...etc.
>
> A TSO/E-only proc's purpose is to provide a way to recover (nearly) no
> matter *what* happens to the regular procs or the data sets named in
> them. With native TSO EDIT, you can list, alter, and save changes to
> the logon proc you really want to use.  Or, you can edit the one you
> want to use to make it a batch job, save it in a new member, submit it,
> and use the OUTPUT command to read the output and locate the problem.
> You can do this in a standalone single-system environment, too, without
> NJE or FTP access.
>
> Everyone should have one.  Really.  Even if you are sure you will never
> need it.  Just because "can" beats "can't" when things go wrong.
>
> [email protected] (Alan Schwartz) wrote:
> > Or have someone stay logged on to TSO while updating the logon procs. If
> > there's a problem they can fix it.
>
> --
> John Eells
> z/OS Technical Marketing
> IBM Poughkeepsie
> [email protected]
>
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-- 

Schrodinger's backup: The condition of any backup is unknown until a
restore is attempted.

Yoda of Borg, we are. Futile, resistance is, yes. Assimilated, you will be.

He's about as useful as a wax frying pan.

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Maranatha! <><
John McKown

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