Re: DASD VOL1 doc

Tue, 27 Jan 2009 12:30:39 -0800

At least, we'll probably never have to wonder if VTAM manuals are out of print. I've gotten the same set of VM/VSE/VTAM manuals since 1995. Every new release of VM comes with the same set of VTAM doc. I wish that Raleigh or whoever owns VTAM now would share some of their documentation money with Endicott so that we could have paper manuals every once in a while. I hate manuals on a screen. 

Jim

Lee Stewart wrote:
My VS/1 Data Areas book (3 3/4" x 6 3/4" in the little IBM binder) dated 1976 has good detail... ;-) Also probably out of stock... 

Jim Bohnsack wrote:
I used to have a 30 year old ?? OS manual that described the IBM format 1-5 DSCB fields. Don't know where I put it. Maybe it's with a S/360 Green Card or an old PofOPs manual. 

I found this when I did a search on IBM for VTOC.

http://www.vm.ibm.com/pubs/cp31064/FMLRC.HTML

it says:
IBM Systems <http://www.ibm.com/systems/> > System z <http://www.ibm.com/systems/z/> > z/VM <http://www.vm.ibm.com/> > 
        

*Programming Interface Information:* This information is NOT intended to be
used as Programming Interfaces of z/VM.


        FMLRC

Prolog <http://www.vm.ibm.com/pubs/cp31064/FMLRC.HTML#PLOG>
Control Block Contents <http://www.vm.ibm.com/pubs/cp31064/FMLRC.HTML#READ>
FMLRC DSECT <http://www.vm.ibm.com/pubs/cp31064/FMLRC.HTML#FMLRC> Storage Layout <http://www.vm.ibm.com/pubs/cp31064/FMLRC.HTML#BMAP> 
Cross Reference <http://www.vm.ibm.com/pubs/cp31064/FMLRC.HTML#XREF>


        FMLRC Prolog

 NAME       : HCPFMLRC
 DESCRIPTION: VOLUME LABEL RECORD
 DSECT      : FMLRC
 FUNCTION   : MAPS THE VOLUME LABEL RECORD THAT IS READ
              FROM/WRITTEN TO CYLINDER 0, TRACK 0, RECORD 3.
 LOCATED BY : FMNFAWLR - FIELD IN HCPFMNUC
 CREATED BY : HCPADF (INDIRECTLY) BY USING THE FIRST LEVEL
              ASA TO IMBED HCPFAW INTO THE GUEST VIRTUAL
              STORAGE.
              HCPCCF (CMS MODULE). HCPFAW IS INCLUDED IN THE
              CPFMTXA MODULE.
 DELETED BY : VIRTUAL SYSTEM CLEAR.

------------------------------------------------------------------------


        FMLRC Control Block Content


        FMLRC DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      FMLRC          VOLUME LABEL RECORD
     VOLUME LABEL RECORD - RECORD 3 ON CYLINDER 0, TRACK 0
0000    0 Character    4 FMLOSLAB       OS LABEL
0004    4 Character    6 FMLCPLAB       CP LABEL (ALSO KNOWN AS THE VOLID
                                        OR VOLUME IDENTIFIER)
000A   10 Bitstring    1 *              CHARACTER ZERO
000B   11 Bitstring    4 FMLVTCB        VTOC PTR IN R3 (CCHH)
000F   15 Bitstring    1 FMLVTCR        ... (R)
0010   16 Bitstring    5 *              ZEROS
0015   21 Bitstring    1 * (20)         BLANKS
0029   41 Bitstring    5 *              FILLER
002E   46 Character    5 FMLVLOWN       VOLUME OWNER - THIS FIELD WILL
                                        CONTAIN THE CHARACTERS 'CPVOL' IF
                                        CYLINDER ZERO HAS BEEN FORMATTED
                                        FOR VM/XA CP USE.
0033   51 Bitstring   29 *

------------------------------------------------------------------------


        FMLRC Storage Layout
*** FMLRC - VOLUME LABEL RECORD 
*
*     +---------------------------+---------------------------+
*   0 |         FMLOSLAB          |        FMLCPLAB-          |
*     +-------------+------+------+--------------------+------+
*   8 |   -(004)    |//////|         FMLVTCB           |:VTCR |
*     +-------------+------+-------------+-------------+------+
*  10 |//////////////////////////////////|////////////////////|
*     +----------------------------------+////////////////////|
*  18 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |//////+----------------------------------+-------------+
*  28 |//////|//////////////////////////////////|   (02E)-    |
*     +------+-------------+--------------------+-------------+
*  30 |     -FMLVLOWN      |//////////////////////////////////|
*     +--------------------+//////////////////////////////////|
*  38 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  50
*
*** FMLRC - VOLUME LABEL RECORD

------------------------------------------------------------------------


        FMLRC Cross Reference

Symbol         Dspl Value
-------------- ---- -----
FMLCPLAB       <http://www.vm.ibm.com/pubs/cp31064/FMLRC.HTML#0002> 0004
FMLOSLAB       <http://www.vm.ibm.com/pubs/cp31064/FMLRC.HTML#0001> 0000
FMLVLOWN       <http://www.vm.ibm.com/pubs/cp31064/FMLRC.HTML#0009> 002E
FMLVTCB        <http://www.vm.ibm.com/pubs/cp31064/FMLRC.HTML#0004> 000B
FMLVTCR        <http://www.vm.ibm.com/pubs/cp31064/FMLRC.HTML#0005> 000F

------------------------------------------------------------------------
This information is based on z/VM V3R1.0. Last updated on 29 Mar 2001 at 15:44:46 EDT. 
Copyright IBM Corporation, 1990, 2001



Tony Thigpen wrote:
Anybody know where in the VM manuals the layout of the VOL1 label is documented? 


--
Jim Bohnsack
Cornell University
(972) 596-6377 home/office
(972) 342-5823 cell
jab...@cornell.edu





--
Jim Bohnsack
Cornell University
(972) 596-6377 home/office
(972) 342-5823 cell
jab...@cornell.edu

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