Caveat:  daily digester back from a long weekend (in Canada) -> responses are 
implicitly delayed.

Martin: using ISMF, in the VIO Storage Pool definition is VIO Unit (beside the 
MaxSize).  I haven't been able to find a complete list of available device 
types but v2.1 documentation focus is on 3390 with the occasional mention of 
3380.  Supposedly any valid device could be used. [pause]  hey, managed to 
locate it. [1]  Presumably it's used to determine byte to track conversions for 
SPACE=. Similar to " Default Device Geometry :" in the CDS Base panels. [2]

From Implementing SMS manual,  " The VIO device type is virtual and is 
unrelated to actual devices on your system. "

[1] 
DGTHDT06 HELP --------  DEVICE TYPES SUPPORTED BY ISMF  ------------------HELP
COMMAND ===>

   The following list contains the device types that are supported by ISMF.

             DASD Device Types:               TAPE Device Types:

                  3380                             3400-3
                  3390                             3400-4
                  9345                             3400-5
                                                   3400-6
                                                   3400-9
                                                   3480
                                                   3480X
                                                   3490
                                                   3590-1

[2]  
DGTHBS07 HELP ------------  DEFAULT DEVICE GEOMETRY  ---------------------HELP
COMMAND ===>

   The DEFAULT DEVICE GEOMETRY field specifies the default values to use when
   converting all requests for space into KB or MB.  These values appear in the
   BYTES/TRACK and TRACKS/CYLINDER fields.

-------->  signature = 8 lines follows  <--------
Neil Duffee, Joe Sysprog, uOttawa, Ottawa, Ont, Canada
telephone:1 613 562 5800 x4585                  fax:1 613 562 5161
mailto:NDuffee of uOttawa.ca     http:/ /aix1.uOttawa.ca/ ~nduffee
“How *do* you plan for something like that?”  Guardian Bob, Reboot
“For every action, there is an equal and opposite criticism.”
“Systems Programming: Guilty, until proven innocent”  John Norgauer 2004
"Schrodinger's backup: The condition of any backup is unknown until a restore 
is attempted."  John McKown 2015

-----Original Message-----
From: Martin Packer [mailto:ma..pac..@UK.. ..COM] 
Sent: May 20, 2016 01:48
Subject: Re: What was a 3314? (was: Whither VIO)

Right. My (now long gone, I fear) VIOTOES presentation majored on (the then
new) DFSMS implementation. In particular ACS Routines and VIOMAXSIZE.

But I still thought you had to have some VIO devices defined.


> On 19 May 2016, at 22:53, Gibney, David Allen <[email protected]> wrote:
>
> Very, Very early in implementing SMS (the minimal implementation) is managing 
> VIO.
>
> Since we've been SMS for a long time, there aren't even any devices in our 
> EDT(s) for VIO
 [snip]

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