Programming Interface Information:
The Monitor Records are intended Programming Interfaces that
allow the customer to write programs to obtain services of z/VM.

MRSTORST

Prolog
Control Block Contents
Cross Reference

MRSTORST Prolog

 DSECT NAME - STORST
 FUNCTION - Map a Monitor record.
 LOCATED By -
        Through the Monitor Control Area
 REFERENCED CONTROL BLOCKS -
        MRRECHDR    Monitor Record Header
 NAME - MRSTORST
 DESCRIPTIVE NAME - Monitor Event Record
                    Domain 3 - Storage Domain
                    Record 22 - Central Storage Add/Remove started
 DESCRIPTION - Generated whenever central storage is added or
               removed from the real memory configuration
 NOTES:

MRSTORST Control Block Contents

Offsets
Dec  Hex  Type        Len  Name (Dim)             Description
 
   0   0  Structure    56  STORST                 Start of monitor record
   0   0  Character     0  STORST_MRHDR           Record header - see
                                                  MRRECHDR for details
   0   0  Character    20  MRHDR
   0   0  Unsigned      2  MRHDRLEN
   2   2  Unsigned      2  MRHDRZER
   4   4  Unsigned      1  MRHDRDM
   5   5  Unsigned      1  *
   6   6  Unsigned      2  MRHDRRC
   8   8  Character     8  MRHDRTOD
  16  10  Character     4  *
  20  14  Character     0  MRHDR_END
  20  14  Bitstring     1  STORST_DSRFLAG0        Flag byte identifying
                                                  charactistics of the SET
                                                  STORAGE operation.
          1... ....        *
          .1.. ....        *
          ..1. ....        *
          ...1 ....        *
          .... 1...        *
          .... .1..        STORST_DSRF0MAXF       MAXPAGEFULL operand
                                                  specified. Valid only if the
                                                  reconfig is a remove
                                                  operation.
          .... ..1.        STORST_DSRF0FORC       FORCE operand specified.
                                                  Valid only if the reconfig is
                                                  a remove operation.
          .... ...1        *
  21  15  Unsigned      1  STORST_DSRWARNPC       MAXPAGEFULL percent used
                                                  for a storage removal
                                                  operation. This value was
                                                  requested using the
                                                  MAXPAGEFULL operand on the
                                                  SET STORAGE command, or
                                                  defaulted to the
                                                  paging-warning percent
                                                  established by the PAGING
                                                  WARNING system config
                                                  statement or a previous SET
                                                  PAGING WARNING command. Valid
                                                  only if the reconfig is a
                                                  remove operation.
  22  16  Character     2  *                      Reserved for IBM use
  24  18  Character     8  STORST_DSRUSERID       Userid who issued the SET
                                                  STORAGE command to initiate
                                                  the reconfiguration.
  32  20  Unsigned      8  STORST_CALPERMADD      Amount of permanent storage
                                                  to add in bytes.
  40  28  Unsigned      8  STORST_CALRECONFADD    Amount of reconfigurable
                                                  storage to add in bytes.
  48  30  Unsigned      8  STORST_CALRECONFREM    Amount of reconfigurable
                                                  storage to remove in bytes.
  56  38  Character     0  STORST_END

MRSTORST Cross Reference

                      Hex           Hex
Name                  Offset Length Value
 
MRHDR                      0     20
MRHDR_END                 14      0
MRHDRDM                    4      1
MRHDRLEN                   0      2
MRHDRRC                    6      2
MRHDRTOD                   8      8
MRHDRZER                   2      2
STORST                     0     56
STORST_CALPERMADD         20      8
STORST_CALRECONFADD       28      8
STORST_CALRECONFREM       30      8
STORST_DSRFLAG0           14      1
STORST_DSRF0FORC          14           02
STORST_DSRF0MAXF          14           04
STORST_DSRUSERID          18      8
STORST_DSRWARNPC          15      1
STORST_END                38      0
STORST_MRHDR               0      0

This information is
based on z/VM V7R4.0.

Last updated on 10 September 2024 at 20:32:05.

Copyright IBM Corporation, 1990, 2024