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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. |
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 292 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 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 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. .... IODVON_ENCRYCAP When on, device is encryption capable. ...1 .... IODVON_EQIEQHSH When on, user-specified EQID information supplied in IODVON_EQIEQID .... 1... IODVON_EQIDUHSH When on, system-generated EQID information supplied in IODVON_EQIDUID .... .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 ..1. .... IODVON_RDEVHPBA HyperPAV Base ...1 .... IODVON_RDEVHPAL HyperPAV Alias The above fields are mutually exclusive .... 1... IODVON_RDEVFREQ HyperPAV Alias is on the free queue .... .1.. IODVON_RDEVESE Extent Space Efficient .... ..1. * .... ...1 * 59 3B Bitstring 1 IODVON_EDEVTYPE EDEV emulation type X'00' - Invalid EDEV type X'80' - X'80' - SCSI with FBA emulation X'40' - RAM disk with FBA emulation X'20' - 9336 FBA interface frontend 60 3C Character 160 IODVON_EDEVPTHS 8 EDEV path triplets 60 3C Character 20 IODVON_EDEVPTH1 Path 1 60 3C Character 1 * Reserved for IBM use 61 3D Character 1 IODVON_EDEVCHP1 Channel Path ID 62 3E Character 2 IODVON_EDEVFCP1 FCP device number 64 40 Character 8 IODVON_EDEVWPN1 World wide port number 72 48 Character 8 IODVON_EDEVLUN1 Logical unit number 80 50 Character 20 IODVON_EDEVPTH2 Path 2 80 50 Character 1 * Reserved for IBM use 81 51 Character 1 IODVON_EDEVCHP2 Channel Path ID 82 52 Character 2 IODVON_EDEVFCP2 FCP device number 84 54 Character 8 IODVON_EDEVWPN2 World wide port number 92 5C Character 8 IODVON_EDEVLUN2 Logical unit number 100 64 Character 20 IODVON_EDEVPTH3 Path 3 100 64 Character 1 * Reserved for IBM use 101 65 Character 1 IODVON_EDEVCHP3 Channel Path ID 102 66 Character 2 IODVON_EDEVFCP3 FCP device number 104 68 Character 8 IODVON_EDEVWPN3 World wide port number 112 70 Character 8 IODVON_EDEVLUN3 Logical unit number 120 78 Character 20 IODVON_EDEVPTH4 Path 4 120 78 Character 1 * Reserved for IBM use 121 79 Character 1 IODVON_EDEVCHP4 Channel Path ID 122 7A Character 2 IODVON_EDEVFCP4 FCP device number 124 7C Character 8 IODVON_EDEVWPN4 World wide port number 132 84 Character 8 IODVON_EDEVLUN4 Logical unit number 140 8C Character 20 IODVON_EDEVPTH5 Path 5 140 8C Character 1 * Reserved for IBM use 141 8D Character 1 IODVON_EDEVCHP5 Channel Path ID 142 8E Character 2 IODVON_EDEVFCP5 FCP device number 144 90 Character 8 IODVON_EDEVWPN5 World wide port number 152 98 Character 8 IODVON_EDEVLUN5 Logical unit number 160 A0 Character 20 IODVON_EDEVPTH6 Path 6 160 A0 Character 1 * Reserved for IBM use 161 A1 Character 1 IODVON_EDEVCHP6 Channel Path ID 162 A2 Character 2 IODVON_EDEVFCP6 FCP device number 164 A4 Character 8 IODVON_EDEVWPN6 World wide port number 172 AC Character 8 IODVON_EDEVLUN6 Logical unit number 180 B4 Character 20 IODVON_EDEVPTH7 Path 7 180 B4 Character 1 * Reserved for IBM use 181 B5 Character 1 IODVON_EDEVCHP7 Channel Path ID 182 B6 Character 2 IODVON_EDEVFCP7 FCP device number 184 B8 Character 8 IODVON_EDEVWPN7 World wide port number 192 C0 Character 8 IODVON_EDEVLUN7 Logical unit number 200 C8 Character 20 IODVON_EDEVPTH8 Path 8 200 C8 Character 1 * Reserved for IBM use 201 C9 Character 1 IODVON_EDEVCHP8 Channel Path ID 202 CA Character 2 IODVON_EDEVFCP8 FCP device number 204 CC Character 8 IODVON_EDEVWPN8 World wide port number 212 D4 Character 8 IODVON_EDEVLUN8 Logical unit number 220 DC Bitstring 1 IODVON_PREFPATH Preferred path mask 221 DD Character 3 * Reserved and available for IBM use. 224 E0 Unsigned 2 IODVON_RDEVHPPL HyperPAV Pool Number Note: This value is only meaningful if the IODVON_RDEVHPBA or IODVON_RDEVHPAL flag is set 226 E2 Unsigned 2 IODVON_CUIDSSID If the device is a DASD this field contains the subsystem ID (SSID). If the device is a non-DASD this field contains binary zeroes. 228 E4 Character 40 IODVON_EQIDUID System-generated EQID 268 10C Character 8 IODVON_EQIEQID User-specified EQID 276 114 Bitstring 1 IODVON_DEVCHAR Device Characteristics 1... .... IODVON_DEVCHAR_DED Encrypted Device .1.. .... IODVON_DEVCHAR_SSD Solid-State Drive ..1. .... * ...1 .... * .... 1... * .... .1.. * .... ..1. * .... ...1 * 277 115 Bitstring 1 IODVON_EDEVATTR EDEV Attributes This deprecated field reports the previous bit settings that were used to record the EDEVICE attribute. The EDEVATTV field field provides the equivalent information and leaves room for expansion. 1... .... IODVON_EDEVSCSI General SCSI Attributes .1.. .... IODVON_EDEV2105 2105 SCSI Attributes ..1. .... IODVON_EDEVFASD Fibre Array Storage ...1 .... IODVON_EDEV2107 2107 SCSI Attributes .... 1... IODVON_EDEV1750 1750 SCSI Attributes .... .1.. IODVON_EDEV2145 2145 SCSI Attributes .... ..1. IODVON_EDEVXIV XIV SCSI Attributes .... ...1 IODVON_EDEVFLSH Flash SCSI Attributes 278 116 Unsigned 1 IODVON_EDEVATTV EDEV Attribute value 1 - General SCSI 2 - 2105 SCSI 3 - Fibre Array Storage 4 - 2107 SCSI 5 - 1750 SCSI 6 - 2145 SCSI 7 - XIV SCSI 8 - Flash SCSI 9 - NVMe 279 117 Character 1 * Reserved and available for future IBM use 280 118 Unsigned 4 IODVON_RDEVMEXT Maximum cylinder/block 284 11C Character 8 IODVON_EDEVTABL SCSI Attribute Table 292 124 Character 0 IODVON_END
MRIODVON Cross Reference
Hex Hex
Name Offset Length Value
IODVON 0 292
IODVON_CALFLAGS 2B 1
IODVON_CALMODLN 18 1
IODVON_CALRDEVDEV 38 2
IODVON_CALRDEVSID 34 4
IODVON_CUIDSSID E2 2
IODVON_DEVCHAR 114 1
IODVON_DEVCHAR_DED 114 80
IODVON_DEVCHAR_SSD 114 40
IODVON_EDEVATTR 115 1
IODVON_EDEVATTV 116 1
IODVON_EDEVCHP1 3D 1
IODVON_EDEVCHP2 51 1
IODVON_EDEVCHP3 65 1
IODVON_EDEVCHP4 79 1
IODVON_EDEVCHP5 8D 1
IODVON_EDEVCHP6 A1 1
IODVON_EDEVCHP7 B5 1
IODVON_EDEVCHP8 C9 1
IODVON_EDEVFASD 115 20
IODVON_EDEVFCP1 3E 2
IODVON_EDEVFCP2 52 2
IODVON_EDEVFCP3 66 2
IODVON_EDEVFCP4 7A 2
IODVON_EDEVFCP5 8E 2
IODVON_EDEVFCP6 A2 2
IODVON_EDEVFCP7 B6 2
IODVON_EDEVFCP8 CA 2
IODVON_EDEVFLSH 115 01
IODVON_EDEVLUN1 48 8
IODVON_EDEVLUN2 5C 8
IODVON_EDEVLUN3 70 8
IODVON_EDEVLUN4 84 8
IODVON_EDEVLUN5 98 8
IODVON_EDEVLUN6 AC 8
IODVON_EDEVLUN7 C0 8
IODVON_EDEVLUN8 D4 8
IODVON_EDEVPTHS 3C 160
IODVON_EDEVPTH1 3C 20
IODVON_EDEVPTH2 50 20
IODVON_EDEVPTH3 64 20
IODVON_EDEVPTH4 78 20
IODVON_EDEVPTH5 8C 20
IODVON_EDEVPTH6 A0 20
IODVON_EDEVPTH7 B4 20
IODVON_EDEVPTH8 C8 20
IODVON_EDEVSCSI 115 80
IODVON_EDEVTABL 11C 8
IODVON_EDEVTYPE 3B 1
IODVON_EDEVWPN1 40 8
IODVON_EDEVWPN2 54 8
IODVON_EDEVWPN3 68 8
IODVON_EDEVWPN4 7C 8
IODVON_EDEVWPN5 90 8
IODVON_EDEVWPN6 A4 8
IODVON_EDEVWPN7 B8 8
IODVON_EDEVWPN8 CC 8
IODVON_EDEVXIV 115 02
IODVON_EDEV1750 115 08
IODVON_EDEV2105 115 40
IODVON_EDEV2107 115 10
IODVON_EDEV2145 115 04
IODVON_ENCRYCAP 2B 20
IODVON_END 124 0
IODVON_EQIDUHSH 2B 08
IODVON_EQIDUID E4 40
IODVON_EQIEQHSH 2B 10
IODVON_EQIEQID 10C 8
IODVON_MRHDR 0 0
IODVON_PREFPATH DC 1
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_RDEVESE 3A 04
IODVON_RDEVFREQ 3A 08
IODVON_RDEVHPAL 3A 10
IODVON_RDEVHPBA 3A 20
IODVON_RDEVHPPL E0 2
IODVON_RDEVLPM 19 1
IODVON_RDEVMEXT 118 4
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 V7R3.0.
Last updated on 13 September 2022 at 13:17:05.
Copyright IBM Corporation, 1990, 2022