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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. |
MRIODSTC
PrologControl Block Contents
Cross Reference
MRIODSTC Prolog
DSECT NAME - IODSTC
FUNCTION - Map a Monitor record.
LOCATED BY -
Through the Monitor Control Area
REFERENCED CONTROL BLOCKS -
MRRECHDR Monitor Record Header
NAME - MRIODSTC
DESCRIPTIVE NAME - Monitor Event Record
Domain 6 - I/O Domain
Record 20 - State Change
DESCRIPTION - Indicates that a real device has generated a state
change.
NOTES -
Codes defined for IODSTC_CALCODE:
IODSTC_CALCODE_00: '00'X Reserved
IODSTC_CALCODE_BS: '01'X Result of a PSF order X'1F' -
manage alias
IODSTC_CALCODE_1E: '02'X Result of a x'1E' -
PAC state change unit check
MRIODSTC Control Block Contents
Offsets Dec Hex Type Len Name (Dim) Description 0 0 Structure 68 IODSTC Start of monitor record 0 0 Character 0 IODSTC_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 Unsigned 1 IODSTC_CALCODE State change type code See defined code values above 21 15 Bitstring 1 * Reserved and available for IBM use 22 16 Unsigned 2 * Reserved and available for IBM use 24 18 Bitstring 1 IODSTC_RDEVTYPE Device type code. Unique for each device within the class in IODSTC_RDEVCLAS. 25 19 Bitstring 1 IODSTC_RDEVCLAS Device class code. Unique for each class. 26 1A Unsigned 2 IODSTC_RDEVDVID Device type number in packed decimal. See IODSTC_RDEVDVIV for its source. 28 1C Bitstring 1 IODSTC_CALMODLN Device model identifier. See IODSTC_RDEVDVIV flag for its source. 29 1D Bitstring 1 IODSTC_RDEVLPM Logical path mask 30 1E Unsigned 2 IODSTC_RDEVDEV Device number 32 20 Unsigned 4 IODSTC_RDEVSID Host subchannel id 36 24 Character 8 IODSTC_RDEVCHPS Eight channel path ids for this device 44 2C Unsigned 2 IODSTC_RDEVCUID control unit id in packed decimal. Applicable only when IODSTC_RDEVCUIV = on. 46 2E Unsigned 1 IODSTC_RDEVCUMN Control unit model identifier. Applicable only when IODSTC_RDEVCUIV = on. 47 2F Bitstring 1 IODSTC_CALFLAGS Flag Byte 1... .... IODSTC_RDEVDVIV OFF = device model number (in IODSTC_RDEVDVID) and model identifier (in IODSTC_CALMODLN) were provided by user through the RDEVICE macro or device sensing at IPL time. ON = device type number and model identifier were provided by the device at device initialization time. .1.. .... IODSTC_RDEVCUIV When on, Control unit information is supplied in IODSTC_RDEVCUID and IODSTC_RDEVCUMN. ..1. .... * ...1 .... * .... 1... * .... .1.. * .... ..1. * .... ...1 * 48 30 Character 6 IODSTC_RDEVSER DASD volume serial identifier 54 36 Unsigned 2 * Reserved and available for IBM use 56 38 Unsigned 4 IODSTC_CALRDEVSID Host subchannel id for the new base 60 3C Unsigned 2 IODSTC_CALRDEVDEV Device number for the new base in packed decimal 62 3E Bitstring 1 IODSTC_RDEVPVFG PAV flag to indicate base and alias DASD 1... .... IODSTC_RDEVPVBA PAV base indicator .1.. .... IODSTC_RDEVPVAL PAV alias indicator ..1. .... IODSTC_RDEVHPBA HyperPAV Base ...1 .... IODSTC_RDEVHPAL HyperPAV Alias The above fields are mutually exclusive .... 1... IODSTC_RDEVFREQ HyperPAV Alias is on the free queue .... .1.. * .... ..1. * .... ...1 * 63 3F Bitstring 1 * Reserved and available for IBM use 64 40 Unsigned 2 IODSTC_RDEVHPPL HyperPAV Pool Number Note: This value is only meaningful if the IODSTC_RDEVHPBA or IODSTC_RDEVHPAL flag is set 66 42 Unsigned 2 * Reserved and available for IBM use. 68 44 Character 0 IODSTC_END
MRIODSTC Cross Reference
Hex Hex
Name Offset Length Value
IODSTC 0 68
IODSTC_CALCODE 14 1
IODSTC_CALFLAGS 2F 1
IODSTC_CALMODLN 1C 1
IODSTC_CALRDEVDEV 3C 2
IODSTC_CALRDEVSID 38 4
IODSTC_END 44 0
IODSTC_MRHDR 0 0
IODSTC_RDEVCHPS 24 8
IODSTC_RDEVCLAS 19 1
IODSTC_RDEVCUID 2C 2
IODSTC_RDEVCUIV 2F 40
IODSTC_RDEVCUMN 2E 1
IODSTC_RDEVDEV 1E 2
IODSTC_RDEVDVID 1A 2
IODSTC_RDEVDVIV 2F 80
IODSTC_RDEVFREQ 3E 08
IODSTC_RDEVHPAL 3E 10
IODSTC_RDEVHPBA 3E 20
IODSTC_RDEVHPPL 40 2
IODSTC_RDEVLPM 1D 1
IODSTC_RDEVPVAL 3E 40
IODSTC_RDEVPVBA 3E 80
IODSTC_RDEVPVFG 3E 1
IODSTC_RDEVSER 30 6
IODSTC_RDEVSID 20 4
IODSTC_RDEVTYPE 18 1
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 V6R4.0.
Last updated on 5 Oct 2016 at 14:06:56.
Copyright IBM Corporation, 1990, 2016