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Programming Interface Information:
The Monitor Records are intended Programming Interfaces that allow the customer to write programs to obtain services of z/VM. |
MRMTRPAG
PrologControl Block Contents
Cross Reference
MRMTRPAG Prolog
DSECT NAME - MTRPAG
FUNCTION - Map a Monitor record.
LOCATED BY -
Through the Monitor Control Area
REFERENCED CONYTOL BLOCKS -
MRRECHDR Monitor Record Header
NAME - MRMTRPAG
DESCRIPTIVE NAME - Monitor Sample Configuration Record
Domain 1 - Monitor Domain
Record 8 - Paging Configuration Data
DESCRIPTION - Identifies paging and spooling space available
on CP owned DASD. A separate record is generated
for each contiguous paging area and each contiguous
spooling area on a CP volume.
MRMTRPAG Control Block Contents
Offsets
Dec Hex Type Len Name (Dim) Description
0 0 Structure 44 MTRPAG Start of monitor record
0 0 Character 0 MTRPAG_MRHDR Record header. See MRRECHDR for
details.
0 0 Character 20 MRHDR
0 0 Unsigned 2 MRHDRLEN record length in bytes
2 2 Unsigned 2 MRHDRZER field of zeros
4 4 Unsigned 1 MRHDRDM domain identifier
5 5 Unsigned 1 *
6 6 Unsigned 2 MRHDRRC record identifier
8 8 Character 8 MRHDRTOD Time at which this record was
built. In time-of-day (TOD) clock
format. See IBM System 370 XA
Principle of Operation for
explanation of format.
16 10 Character 4 *
20 14 Character 0 MRHDR_END End of header
20 14 Character 6 MTRPAG_CPVOLSER Volume serial identifier
26 1A Unsigned 1 MTRPAG_RDCPCYL Number of pages per cylinder.
Not applicable for FBA devices.
See MTRPAG_FBA
27 1B Bitstring 1 MTRPAG_CALFLAGS Flag byte
1... .... MTRPAG_FBA When on, this device is a FBA
(Fixed Block Access) DASD.
.1.. .... *
..1. .... *
...1 .... *
.... 1... *
.... .1.. *
.... ..1. *
.... ...1 *
28 1C Character 4 MTRPAG_CALTYPE 'PAGE' = paging space, 'SPOL' =
spooling space
32 20 Signed 4 MTRPAG_CALCYLNO Space allocation. Number of
cylinders for a non-FBA DASD, or
number of pages for a FBA DASD.
See MTRPAG_FBA
36 24 Signed 4 MTRPAG_CALSTART Start of the paging or spooling
area. A cylinder number for a
non-FBA DASD, or a page number for
a FBA DASD. See MTRPAG_FBA
40 28 Unsigned 4 MTRPAG_RDEVSID Host subchannel id
44 2C Character 0 MTRPAG_END
MRMTRPAG 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
MTRPAG 0 44
MTRPAG_CALCYLNO 20 4
MTRPAG_CALFLAGS 1B 1
MTRPAG_CALSTART 24 4
MTRPAG_CALTYPE 1C 4
MTRPAG_CPVOLSER 14 6
MTRPAG_END 2C 0
MTRPAG_FBA 1B 80
MTRPAG_MRHDR 0 0
MTRPAG_RDCPCYL 1A 1
MTRPAG_RDEVSID 28 4
This information is
based on z/VM V4R4.0.
Last updated on 22 Jul 2003 at 15:04:23.
Copyright IBM Corporation, 1990, 2003