Programming Interface Information:
The Monitor Records are intended Programming Interfaces that allow the customer to write programs to obtain services of z/VM. |
MRIODCHS
PrologControl Block Contents
Cross Reference
MRIODCHS Prolog
DSECT NAME - IODCHS FUNCTION - Map a Monitor record. LOCATED BY - Through the Monitor Control Area REFERENCED CONTROL BLOCKS - MRRECHDR Monitor Record Header NAME - MRIODCHS DESCRIPTIVE NAME - Monitor Sample Record Domain 6 - I/O Domain Record 49 - EDEVICE CHPID activity DESCRIPTION - Describes activity on a CHPID since the first associated EDEVice using that CHPID came online. NOTES: - Note that the timestamp and data for the CHPID activity record might be identical to that in the previous record in cases where there was a delay in the capturing of the data. In this case there is effectively no interval reported on between this pair of records and a later record with a different timestamp must be used to compute usage for the CHPID.
MRIODCHS Control Block Contents
Offsets Dec Hex Type Len Name (Dim) Description 0 0 Structure 148 IODCHS Start of monitor record 0 0 Character 0 IODCHS_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 Character 8 IODCHS_CHAUTIME Timestamp (TOD) of the most recent data set collection. 28 1C Unsigned 2 IODCHS_CHANMPTH Number of path(s) using this chpid 30 1E Unsigned 2 * Reserved for IBM use 32 20 Unsigned 1 IODCHS_CHACHPID CHPID number 33 21 Unsigned 3 * Reserved for IBM use 36 24 Unsigned 4 IODCHS_CHAPRTYP The type of the local port X'00000001'- port type unknown X'00000003'- port not accessible X'00000005'- N_Port attached to a fabric X'00000021'- port is point-to-point attached to a device 40 28 Character 8 IODCHS_CHAINPRQ The number of requests causing Read operations on this chpid since activation - cumulative (eight-byte unsigned binary) 48 30 Character 8 IODCHS_CHAOUTRQ The number of requests causing write operations on this chpid since activation - cumulative (eight-byte unsigned binary) 56 38 Character 8 IODCHS_CHAINPMB The amount of data in megabytes that has been received for this chpid since activation - cumulative (eight-byte unsigned binary) 64 40 Character 8 IODCHS_CHAOUTMB The amount of data in megabytes that has been sent for this chpid since activation - cumulative (eight-byte unsigned binary) 72 48 Character 8 IODCHS_CHARESET Seconds since last channel reset - cumulative (eight-byte unsigned binary) 80 50 Unsigned 4 IODCHS_CHASCALL The overall number of calls to gather data - cumulative 84 54 Character 8 IODCHS_CHASTIME Cumulative time to gather data in time-of-day (TOD) format. (eight-byte unsigned binary) 92 5C Unsigned 4 IODCHS_CHASERRS Number of data calls that failed with error - cumulative
IODCHS_CHASMPLS is a count of the number of samples of data that have been taken for this record since Monitor began. It is used by the reduction program in relation to the cumulative values below.
Offsets Dec Hex Type Len Name (Dim) Description 96 60 Unsigned 4 IODCHS_CHASMPLS Cumulative count of samples 100 64 Unsigned 1 IODCHS_CHAPROCU Overall utilization of the processor in the FCP channel, percentage - cardinal 101 65 Unsigned 3 * Reserved for IBM use 104 68 Unsigned 4 IODCHS_CHAPROCS Cumulative sum of processor utilization 108 6C Character 8 IODCHS_CHAPROCQ Sum of squares of processor utilization 116 74 Unsigned 1 IODCHS_CHABUSUT Overall utilization of the bus in the FCP channel, percentage - cardinal 117 75 Unsigned 3 * Reserved for IBM use 120 78 Unsigned 4 IODCHS_CHABUSSM Cumulative sum of bus utilization 124 7C Character 8 IODCHS_CHABUSSQ Sum of squares of bus utilization 132 84 Unsigned 1 IODCHS_CHAADAPU Overall utilization of the FCP channel's integrated Fibre Channel adapter, percentage - cardinal 133 85 Unsigned 3 * Reserved for IBM use 136 88 Unsigned 4 IODCHS_CHAADAPS Cumulative sum of adapter utilization 140 7C Character 8 IODCHS_CHAADAPQ Sum of squares of adapter utilization 148 94 Character 0 IODCHS_END
MRIODCHS Cross Reference
Hex Hex Name Offset Length Value IODCHS 0 148 IODCHS_CHAADAPQ 7C 8 IODCHS_CHAADAPS 88 4 IODCHS_CHAADAPU 84 1 IODCHS_CHABUSSM 78 4 IODCHS_CHABUSSQ 7C 8 IODCHS_CHABUSUT 74 1 IODCHS_CHACHPID 20 1 IODCHS_CHAINPMB 38 8 IODCHS_CHAINPRQ 28 8 IODCHS_CHANMPTH 1C 2 IODCHS_CHAOUTMB 40 8 IODCHS_CHAOUTRQ 30 8 IODCHS_CHAPROCQ 6C 8 IODCHS_CHAPROCS 68 4 IODCHS_CHAPROCU 64 1 IODCHS_CHAPRTYP 24 4 IODCHS_CHARESET 48 8 IODCHS_CHASCALL 50 4 IODCHS_CHASERRS 5C 4 IODCHS_CHASMPLS 60 4 IODCHS_CHASTIME 54 8 IODCHS_CHAUTIME 14 8 IODCHS_END 94 0 IODCHS_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 V6R4.0.
Last updated on 26 March 2018 at 14:50:21.
Copyright IBM Corporation, 1990, 2018