FMLRC Back to Index page
 
Prolog 
Control Block Contents 
   FMLRC DSECT
Storage Layout 
Cross Reference (Contains links to field and bit definitions)
Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.


  FMLRC Prolog Top of page
 
 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.
 RELOCATION CONSIDERATIONS : None
 
 
  FMLRC Control Block Content Top of page
 

 FMLRC DSECT Top of page
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 Top of page
 
          
*** 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 Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
FMLCPLAB       0004
FMLOSLAB       0000
FMLVLOWN       002E
FMLVTCB        000B
FMLVTCR        000F
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:50:33 EDT.
Copyright IBM Corporation, 1990, 2022