Programming Interface Information:
The Monitor Records are intended Programming Interfaces that allow the customer to write programs to obtain services of z/VM. |
MRIODVON
PrologControl Block Contents
Cross Reference
MRIODVON Prolog
DSECT NAME - IODVON FUNCTION - Map a Monitor record. LOCATED BY - Through the Monitor Control Area REFERENCED CONTROL BLOCKS - MRRECHDR Monitor Record Header NAME - MRIODVON DESCRIPTIVE NAME - Monitor Event Record Domain 6 - I/O Domain Record 1 - Vary On Device DESCRIPTION - Indicates that a real device has been varied online
MRIODVON Control Block Contents
Offsets Dec Hex Type Len Name (Dim) Description 0 0 Structure 60 IODVON Start of monitor record 0 0 Character 0 IODVON_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 Bitstring 1 IODVON_RDEVTYPE Device type code. Unique for each device within the class in IODVON_RDEVCLAS. 21 15 Bitstring 1 IODVON_RDEVCLAS Device class code. Unique for each class. 22 16 Unsigned 2 IODVON_RDEVDVID Device type number in packed decimal. See IODVON_RDEVDVIV for its source. 24 18 Bitstring 1 IODVON_CALMODLN Device model identifier. See IODVON_RDEVDVIV flag for its source. 25 19 Bitstring 1 IODVON_RDEVLPM Logical path mask 26 1A Unsigned 2 IODVON_RDEVDEV Device number in packed decimal 28 1C Unsigned 4 IODVON_RDEVSID Host subchannel id 32 20 Character 8 IODVON_RDEVCHPS Eight channel path ids for this device 40 28 Unsigned 2 IODVON_RDEVCUID control unit id in packed decimal. Applicable only when IODVON_RDEVCUIV = on. 42 2A Unsigned 1 IODVON_RDEVCUMN Control unit model identifier. Applicable only when IODVON_RDEVCUIV = on. 43 2B Bitstring 1 IODVON_CALFLAGS Flag Byte 1... .... IODVON_RDEVDVIV OFF = device model number (in IODVON_RDEVDVID) and model identifier (in IODVON_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.. .... IODVON_RDEVCUIV When on, Control unit information is supplied in IODVON_RDEVCUID and IODVON_RDEVCUMN. ..1. .... * ...1 .... * .... 1... * .... .1.. * .... ..1. * .... ...1 * 44 2C Character 1 IODVON_RDCRCUC Real CU Code 45 2D Character 1 IODVON_RDCOBRCO OBR Code 46 2E Character 6 IODVON_RDEVSER DASD volume serial identifier 52 34 Unsigned 4 IODVON_CALRDEVSID Host subchannel id of the base PAV when RDEVPVAL is on, zero otherwise 56 38 Unsigned 2 IODVON_CALRDEVDEV Device number of the base PAV when RDEVPVAL is on, zero otherwise 58 3A Bitstring 1 IODVON_RDEVPVFG PAV flag to indicate base and alias DASD 1... .... IODVON_RDEVPVBA PAV base indicator .1.. .... IODVON_RDEVPVAL PAV alias indicator Base and alias is mutually exclusive ..1. .... * ...1 .... * .... 1... * .... .1.. * .... ..1. * .... ...1 * 59 3B Bitstring 1 * Reserved and available for IBM use 60 3C Character 0 IODVON_END
MRIODVON Cross Reference
Hex Hex Name Offset Length Value IODVON 0 60 IODVON_CALFLAGS 2B 1 IODVON_CALMODLN 18 1 IODVON_CALRDEVDEV 38 2 IODVON_CALRDEVSID 34 4 IODVON_END 3C 0 IODVON_MRHDR 0 0 IODVON_RDCOBRCO 2D 1 IODVON_RDCRCUC 2C 1 IODVON_RDEVCHPS 20 8 IODVON_RDEVCLAS 15 1 IODVON_RDEVCUID 28 2 IODVON_RDEVCUIV 2B 40 IODVON_RDEVCUMN 2A 1 IODVON_RDEVDEV 1A 2 IODVON_RDEVDVID 16 2 IODVON_RDEVDVIV 2B 80 IODVON_RDEVLPM 19 1 IODVON_RDEVPVAL 3A 40 IODVON_RDEVPVBA 3A 80 IODVON_RDEVPVFG 3A 1 IODVON_RDEVSER 2E 6 IODVON_RDEVSID 1C 4 IODVON_RDEVTYPE 14 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 V4R4.0.
Last updated on 22 Jul 2003 at 15:04:23.
Copyright IBM Corporation, 1990, 2003