>> :-( I hope it is not licensed (and extra paid) knowledge.
I fear it is. I tried to hold of a copy some years ago and it’s the stuff that 
is available to 3rd party software developers, at cost.
Lennie

-----Original Message-----
From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
Radoslaw Skorupka
Sent: 24 May 2025 20:54
To: [email protected]
Subject: Re: VVDS format and view... and encryption

I started from RTFM. I browsed both Managing Catalogs, Access Method Services 
and Advanced Services. No effect. :-( I hope it is not licensed (and extra 
paid) knowledge.

Regarding FM, I also use to browse/edit VSAM datasets, but VVDS is different 
animal. From the abend code I read I need APF authorisation, which is not 
available for FM under ISPF. As far as I remember, good old DITTO allowed APF 
mode under ISPF, but restriction was single ISPF screen (no PF9, etc.).

-- 
Radoslaw Skorupka
Lodz, Poland



W dniu 24.05.2025 o 21:35, Paul Feller pisze:
> You could try looking in the z/OS DFSMS Managing Catalogs (SC23-6853) manual. 
>  From what I see there is some information about the records in the VVDS.  
> Unfortunately from what I can see the information does not give any detail 
> around offsets and lengths for the fields.
>
> I know I've used File Manager under ISPF to browse Vsam datasets.  Not sure 
> if you could use File Manager to actually browse the VVDS.
>
> Paul
>
> -----Original Message-----
> From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
> Radoslaw Skorupka
> Sent: Saturday, May 24, 2025 1:54 PM
> To: [email protected]
> Subject: VVDS format and view... and encryption
>
> 1. Where can I find VVDS entries documentation?
>
> 2. Is there any tool which allow to view VVDS interactively? I'm aware of dss 
> PRINT TRACKS, it seems that File Manager in batch mode also allow that. 
> However it is not the same as ISPF panels. What about edit
> (change) mode?
>
> 3. One of the reasons is key information for encrypted datasets. I have found 
> key label in the PRINT output, but I guess there's also some key check value 
> as well. I'd like to find it out and compare to the key residing in CKDS. 
> (Hint: same label does not necessarily mean same key material).
>

----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: INFO IBM-MAIN

----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: INFO IBM-MAIN

Reply via email to