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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. |
MRIODMDE
PrologControl Block Contents
Cross Reference
MRIODMDE Prolog
DSECT NAME - IODMDE
FUNCTION - Map a Monitor record.
LOCATED BY -
Through the Monitor Control Area
REFERENCED CONTROL BLOCKS -
MRRECHDR Monitor Record Header
NAME - MRIODMDE
DESCRIPTIVE NAME - Monitor Event Record
Domain 6 - I/O Domain
Record 31- Minidisk Activity
DESCRIPTION - Indicates Minidisk Cache (MDC) setting has been
changed automatically by CP
MRIODMDE Control Block Contents
Offsets
Dec Hex Type Len Name (Dim) Description
0 0 Structure 80 IODMDE Start of monitor record
0 0 Character 0 IODMDE_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 8 IODMDE_MDIOUSER Minidisk owner userid
28 1C Bitstring 2 IODMDE_MDIOVDEV Minidisk owner VDEV number
30 1E Character 40 IODMDE_EQIDUID EQID of real device
70 46 Bitstring 4 IODMDE_MDIVSEXT Start extent
74 4A Bitstring 4 IODMDE_MDIVEEXT End extent
78 4E Bitstring 1 IODMDE_CALFLAGS Flag Byte
1... .... IODMDE_MDCSETTG OFF = XDISK set MDC OFF ON
= XDISK doesn't care
.1.. .... IODMDE_EQIDUHSH ON = system generated EQID
which is 40 bytes in
IODMDE_EQIDUID OFF = user
generated EQID which is 8
bytes in IODMDE_EQIDUID
..1. .... *
...1 .... *
.... 1... *
.... .1.. *
.... ..1. *
.... ...1 *
79 4F Character 1 * Reserved for IBM use
80 50 Character 0 IODMDE_END
MRIODMDE Cross Reference
Hex Hex
Name Offset Length Value
IODMDE 0 80
IODMDE_CALFLAGS 4E 1
IODMDE_END 50 0
IODMDE_EQIDUHSH 4E 40
IODMDE_EQIDUID 1E 40
IODMDE_MDCSETTG 4E 80
IODMDE_MDIOUSER 14 8
IODMDE_MDIOVDEV 1C 2
IODMDE_MDIVEEXT 4A 4
IODMDE_MDIVSEXT 46 4
IODMDE_MRHDR 0 0
MRHDR 0 20
MRHDR_END 14 0
MRHDRDM 4 1
MRHDRLEN 0 2
MRHDRRC 6 2
MRHDRTOD 8 8
MRHDRZER 2 2
This information is
based on z/VM V6R2.0.
Last updated on 23 Nov 2011 at 15:33:04.
Copyright IBM Corporation, 1990, 2011