Collection Services data files: QAPMDIOP
This database file contains storage device (disk) IOP file entries.
It lists the fields in the storage device IOP file. Consider the following information in these fields:
- Device means disk.
- The idle loop count and time are used to calculate the storage
device controller IOP utilization as follows:
Convert the product of the idle loop count times the idle loop time from hundredths of microseconds to seconds. Subtract this from the interval time, and divide the result by the interval time. For example:
IOP Utilization = (INTSEC - (DIIDLC * DIIDLT)/10**8)/INTSEC
| Field Name | Description | Attribute |
|---|---|---|
| INTNUM | Interval number: The nth sample database interval based on the start time specified in the Create Performance Data (CRTPFRDTA) command. | PD (5,0) |
| DTETIM | Interval date (yymmdd) and time (hhmmss): The date and time of the sample interval. | C (12) |
| INTSEC | Elapsed interval seconds: The number of seconds since the last sample interval. | PD (7,0) |
| IOPRN | IOP resource name. | C (10) |
| DIIOP | Reserved | C (1) |
| DITYPE | IOP type. | C (4) |
| DIIDLC | Idle loop count: The number of times the disk controller IOP ran an idle loop. This is done when the IOP has no work to perform. This count is used with the idle loop time. | PD (11,0) |
| DIIDLT | Idle loop time: The time (in hundredths of microseconds) to run the idle loop once. | PD (11,0) |
| DITPDK | Total packets transferred. | PD (11,0) |
| DIKBYO | Total KB transmitted from the IOP to the system across the bus. | PD (11,0) |
| DIKBYI | Total KB transmitted to the IOP from the system across the bus. | PD (11,0) |
| DIOPSR | OPSTART bus unit message received from another bus unit using normal flow. | PD (11,0) |
| DIOPSS | OPSTART bus unit message received from another bus unit using reverse flow method 2 (always 0). | PD (11,0) |
| DISGLR | Signals received. | PD (11,0) |
| DIOPST | OPSTARTs sent. | PD (11,0) |
| DISGLS | Signals sent. | PD (11,0) |
| DIRSTQ | Restart queues sent. | PD (11,0) |
| DIRQDO | DMA requests sent for output of data: The number of requests the IOP sends to the system for data to be sent from the IOP to the system across the bus. | PD (11,0) |
| DIRQDI | DMA requests sent for input of data: The number of requests the IOP sends to the system for data to be sent to the IOP from the system across the bus. | PD (11,0) |
| DIBNAR | Occurrences of BNA received. | PD (11,0) |
| DIRID0 | Reserved | C (8) |
| DISMP0 | Reserved | PD (11,0) |
| DIQLN0 | Reserved | PD (11,0) |
| DINRQ0 | Reserved | PD (11,0) |
| DIRID1 | Reserved | C (8) |
| DISMP1 | Reserved | PD (11,0) |
| DIQLN1 | Reserved | PD (11,0) |
| DINRQ1 | Reserved | PD (11,0) |
| DIRID2 | Reserved | C (8) |
| DISMP2 | Reserved | PD (11,0) |
| DIQLN2 | Reserved | PD (11,0) |
| DINRQ2 | Reserved | PD (11,0) |
| DIRID3 | Reserved | C (8) |
| DISMP3 | Reserved | PD (11,0) |
| DIQLN3 | Reserved | PD (11,0) |
| DINRQ3 | Reserved | PD (11,0) |
| DIRID4 | Reserved | C (8) |
| DISMP4 | Reserved | PD (11,0) |
| DIQLN4 | Reserved | PD (11,0) |
| DINRQ4 | Reserved | PD (11,0) |
| DIRID5 | Reserved | C (8) |
| DISMP5 | Reserved | PD (11,0) |
| DIQLN5 | Reserved | PD (11,0) |
| DINRQ5 | Reserved | PD (11,0) |
| DIRID6 | Reserved | C (8) |
| DISMP6 | Reserved | PD (11,0) |
| DIQLN6 | Reserved | PD (11,0) |
| DINRQ6 | Reserved | PD (11,0) |
| DIRID7 | Reserved | C (8) |
| DISMP7 | Reserved | PD (11,0) |
| DIQLN7 | Reserved | PD (11,0) |
| DINRQ7 | Reserved | PD (11,0) |
| DIRID8 | Reserved | C (8) |
| DISMP8 | Reserved | PD (11,0) |
| DIQLN8 | Reserved | PD (11,0) |
| DINRQ8 | Reserved | PD (11,0) |
| DIRID9 | Reserved | C (8) |
| DISMP9 | Reserved | PD (11,0) |
| DIQLN9 | Reserved | PD (11,0) |
| DINRQ9 | Reserved | PD (11,0) |
| DIRIDA | Reserved | C (8) |
| DISMPA | Reserved | PD (11,0) |
| DIQLNA | Reserved | PD (11,0) |
| DINRQA | Reserved | PD (11,0) |
| DIRIDB | Reserved | C (8) |
| DISMPB | Reserved | PD (11,0) |
| DIQLNB | Reserved | PD (11,0) |
| DINRQB | Reserved | PD (11,0) |
| DIRIDC | Reserved | C (8) |
| DISMPC | Reserved | PD (11,0) |
| DIQLNC | Reserved | PD (11,0) |
| DINRQC | Reserved | PD (11,0) |
| DIRIDD | Reserved | C (8) |
| DISMPD | Reserved | PD (11,0) |
| DIQLND | Reserved | PD (11,0) |
| DINRQD | Reserved | PD (11,0) |
| DIRIDE | Reserved | C (8) |
| DISMPE | Reserved | PD (11,0) |
| DIQLNE | Reserved | PD (11,0) |
| DINRQE | Reserved | PD (11,0) |
| DIRIDF | Reserved | C (8) |
| DISMPF | Reserved | PD (11,0) |
| DIQLNF | Reserved | PD (11,0) |
| DINRQF | Reserved | PD (11,0) |
Note: The performance monitor reports I/O processor (IOP)
statistics different beginning with Version 3 Release 7. Therefore,
performance statistics for IOPs introduced in Version 3 Release 7
or later releases are reported in the QAPMMIOP file. Performance statistics
are reported in the QAPMMIOP file even if the IOP supports only one
of the three IOP functions (communications, disk, or local workstation).
Performance statistics for IOPs that were introduced before Version
3 Release 7 will continue to be reported in the appropriate IOP file
(QAPMCIOP, QAPMDIOP, QAPMLIOP, and QAPMMIOP).