MN100 MN700 provides, via CP MONITOR, the I/O tasks and cylinder seek activity cf a specified DASD. o MN700UID 8 MB700ADD MN700CYL MN7CCCCY M*l 10 M*3 I M*4 n ......... _;I!,...".;.".!!!II1 Field
tisplacement Halle Field DescriptioD# Contents s Meaning ------------ -------------------------------------- 0 MB700UID DS cta Userid a MN700ADD DS 1H Device address
A MN700CYt DS 1H Cylinder l:eing sought
C MN700CCY DS 1H Current cylinder
E MN700QDV DS 11 8*1 I/O tasks queued on the device
F MN700QCU DS 11 8*2 I/O tasks queued on the contrcl unit 10 MN700QCH DS 1X 8*3 I/O tasks queued on the channel
11 8N700DIR DS 1X 8*4 Seek direction: OO=lower, 01=bigber 8B700tEB EQU *-MN100 Length of class 7 code o record
section 1. CP Data Areas and Ccntrel Blocks 53

MN802 I • Header Reccrd MN802HDR provides the number of device block counters.
r--------------------------------------------------------"
o MN802NUM MN802CNT I Hexadecimal Field
Displacement Name Field Description, Contents, !eaning o MN802NUM DS 1H Number of dev1ce block counters
that follow
2 MN802CNT DS IL4 Device I/O count MN802DLN RQU *-MN802CTR Length of the header I. System Profile Data MN802CTR provides, via CP MONITOR command, additional system profile data. The monitor
data includes: the I/O activity for each device, the number of logged en users, number cf page read/writes, and the total system I/O, page wait, and proble. state times. ,
o MN802NIU MN8C2PGR 8 MN802PGW MN8C2NPP 10 MN802WID 18 MN802WPG 20 MN802WIO 28 MN802PRE Hexadecimal Field
Displacement Name Field Description, Contents, Meaning ------------ -------------------------------------- 0 MN802NAU DS 1F No. of logged on users
4 MN802PGR DS 1F Total system page reads
8 MN802PGW DS 1F Total system page writes
C MN802NPP DS 1F No. cf system pageable pages 10 MN802WID DS 118 Total system idle wait time
18 MN802WPG DS XL8 Total system page wait time 20 MN802WIO DS 118 Total system I/O wait time
28 MN802PRB DS IL8 Total system problem time MN802CLN EQU *-MN802CTR Length of each data entry
54 IBM VM/370 Data Areas and Control Block Logic