Shared Device Activity Report
The Shared Device Activity Report displays shared DASD and tape activity (see a sample in the figure below).
The Shared Device Activity Report is produced by using the SHARDEV Analyzer control statement. The data for this report is obtained by using the DEVICE Extractor control statement.
BMC Software, Inc. MASTER LIST REPORT DATE: dd mmm yy 12.00
ACTL dd mmm yy 22.17.31 dd mmm yy 14.30.00 SUPERPAV SYSTEM ID: SJSC Z 2.02.0
BASED ON REC TYPE/# RECS/# SAMPLES/REC HOURS: 74-1/3,640/58.3K/16.21
- ------------- AVERAGE TIME IN MSEC -------------- --- PERCENT OF TOTAL TIME ---
VOLSER/DEVTYPE INIT DEV INTER DEV AVG
DEV IODF SYSNAME/ PAV PAV SSCH TOTAL COMND BUSY -RUPT DEV IN DEV DEV MOUNT DSETS
NUM SFX LCU SYSID MX TYP PER SEC SERVICE IOSQ RESP DELAY DELAY PEND DISC CONN CONN USE RESV ALLOC PEND ALLOC
----- --- ---- -------- ---- --- ------- ------- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----
33909
0A87B 87 00B7 SJSC 1.0 HPV 0 0.146 0 0 0 0 0.055 0 0.091 0.0 0.0 0.0 86.1 0.0 0.0
SUMMARY ( 1 ACTIVE) 0 0.146 0 0 0 0 0.055 0 0.091 0.0 0.0 0.0 86.1 0.0 0.0
---E0A 3380K
00E0A 87 000D SJSC 0 0.176 0 0 0 0 0.080 0 0.096 0.0 0.0 0.0 100.0 0.0 0.0
SUMMARY ( 1 ACTIVE) 0 0.176 0 0 0 0 0.080 0 0.096 0.0 0.0 0.0 100.0 0.0 0.0
--AF18 33903
0AF18 87 00BE SJSC 1.0 HPV 0 0.165 0 0 0 0 0.073 0 0.091 0.0 0.0 0.0 100.0 0.0 0.0
SUMMARY ( 1 ACTIVE) 0 0.165 0 0 0 0 0.073 0 0.091 0.0 0.0 0.0 100.0 0.0 0.0
--A501 33909
0A501 87 00B4 SJSC 1.0 HPV 0 0.165 0 0 0 0 0.073 0 0.091 0.0 0.0 0.0 100.0 0.0 0.0
SUMMARY ( 1 ACTIVE) 0 0.165 0 0 0 0 0.073 0 0.091 0.0 0.0 0.0 100.0 0.0 0.0
--A87D 33909
0A87D 87 00B7 SJSC 1.0 HPV 0 0.146 0 0 0 0 0.073 0 0.073 0.0 0.0 0.0 100.0 0.0 0.0
SUMMARY ( 1 ACTIVE) 0 0.146 0 0 0 0 0.073 0 0.073 0.0 0.0 0.0 100.0 0.0 0.0
--C1C5 33903
0C1C5 87 00C9 SJSC 0 0.224 0 0.048 0 0 0.128 0 0.096 0.0 0.0 0.0 100.0 0.0 0.0
SUMMARY ( 1 ACTIVE) 0 0.224 0 0.048 0 0 0.128 0 0.096 0.0 0.0 0.0 100.0 0.0 0.0
--C1C6 33903
0C1C6 87 00C9 SJSC 0 0.240 0 0.032 0 0 0.128 0 0.112 0.0 0.0 0.0 100.0 0.0 0.0
SUMMARY ( 1 ACTIVE) 0 0.240 0 0.032 0 0 0.128 0 0.112 0.0 0.0 0.0 100.0 0.0 0.0
--C100 33903
0C100 87 00C9 SJSC 0 0.208 0 0.016 0 0 0.112 0 0.096 0.0 0.0 0.0 100.0 0.0 0.0
SUMMARY ( 1 ACTIVE) 0 0.208 0 0.016 0 0 0.112 0 0.096 0.0 0.0 0.0 100.0 0.0 0.0
--C16F 33903
0C16F 87 00C9 SJSC 0 0.224 0 0.048 0 0 0.144 0 0.080 0.0 0.0 0.0 100.0 0.0 0.0
SUMMARY ( 1 ACTIVE) 0 0.224 0 0.048 0 0 0.144 0 0.080 0.0 0.0 0.0 100.0 0.0 0.0
--D305 33909
0D305 87 00D1 SJSC 1.0 HPV 0 0.165 0 0 0 0 0.073 0 0.091 0.0 0.0 0.0 100.0 0.0 0.0
SUMMARY ( 1 ACTIVE) 0 0.165 0 0 0 0 0.073 0 0.091 0.0 0.0 0.0 100.0 0.0 0.0
--0CA1 33903
00CA1 87 000B SJSC 0.001 1.999 0 0 0 0 0.108 0.499 1.392 0.0 0.0 0.0 100.0 0.0 0.0
SUMMARY ( 1 ACTIVE) 0.001 1.999 0 0 0 0 0.108 0.499 1.392 0.0 0.0 0.0 100.0 0.0 0.0
Shared Device Activity Report field descriptions
The following table describes each field in the Shared Device Activity Report.
Field | Description |
|---|---|
VOLSER | Volser from the UCB of the last volume mounted on this device |
DEV TYPE | Type of the physical I/O device on which the volume is mounted |
DEV NUM | Five-digit hexadecimal number that identifies this device An asterisk (*) following this number indicates that the online/offline status of the device was changed during the report interval. |
IODF SFX | IODF suffix in effect for the system |
LCU | Four-digit hexadecimal identifier of the Logical Control Unit |
SYSNAME/SYSID | Name of the system by either SYSNAME or SYSID |
PAV MX | Number of exposures (base and aliases) of a Parallel Access Volume (PAV); applicable only to DASDs
The PAV MX SUMMARY line contains the average of the PAV MX values in the detail lines for the device. |
PAV TYP | Indicates the operating mode of the PAV
|
SSCH PER SEC | Rate per second at which SSCH instructions issued for this device completed successfully OFFLINE is printed under this column if the device was offline during the entire report interval. If the online/offline status of the device was changed during a recording interval, it is considered offline and its data is skipped for that particular interval. The device SUMMARY line contains the sum of SSCH/sec for all systems reported. |
TOTAL SERVICE | Average number of milliseconds the device required to service an I/O request (IOSQ + PEND + DISC + CONN) The device SUMMARY line contains the sum of the weighted IOSQ, PEND, DISC, and CONN. |
IOSQ | Average number of milliseconds of delay an I/O request encountered because the device was busy performing an I/O from the local system 1 |
INIT COMND RESP | Average number of milliseconds of delay that an I/O request encountered beginning from when the first command of the channel program is sent to the device until the device indicates that it has accepted the command This delay is part of pending time. Delay is available only on z990 or later processors. |
DEV BUSY DELAY | Average number of milliseconds of delay that an I/O request encountered because the device was busy due to I/O from another system; this delay is part of pending time 1 |
INTERRUPT DELAY | For devices attached to IBM zEnterprise EC12 (zEC12) and later servers, the average amount of time, in milliseconds per I/O request, that the I/O completion interrupt was delayed because no logical central processor (LCP) was available to accept the interrupt |
PEND | Average number of milliseconds that an I/O request must wait for hardware, such as an available channel path or control unit, as well as time between the SSCH pending at the channel and the device active on the subchannel; also includes delays caused by another processor reserving this device in a shared DASD environment 1 |
DISC | Average number of milliseconds during which the device was processing an SSCH instruction but not transferring data 1 |
CONN | Average number of milliseconds during which the device was processing an SSCH instruction and transferring data 1 |
% DEV CONN | Percentage of time during the measurement interval that the device was connected to a channel path The device SUMMARY line contains the sum of % DEV CONN for each system. |
% DEV IN USE | Percentage of time during the measurement interval that the device was in use; includes device connect and disconnect time The device SUMMARY line contains the sum of % DEV IN USE for each system. |
% DEV RESV | Percentage of time during the measurement interval that this device was reserved by the processor on which the CMF MONITOR Extractor was executing The device SUMMARY line contains the sum of % DEV RESV for each system. |
% DEVICE ALLOC | Percentage of time during the measurement interval that this device was allocated to one or more data sets; DASD devices always show 100% allocation 1 |
% MOUNT PEND | Percentage of time during the measurement interval that this device had an outstanding mount pending request The device SUMMARY line contains the sum of % MOUNT PEND for each system. |
AVG DSETS ALLOC | Average number of data sets allocated on this DASD The device SUMMARY line contains the sum of AVG DSETS ALLOC for each system. |
NUM OF MOUNTS | Total number of mounts for the tape device during the reporting interval An asterisk (*) to the left of this value indicates that a mount pending condition existed at the start of the recording interval. An asterisk (*) to the right of the value indicates that a mount pending condition existed at the end of the recording interval. The device SUMMARY line contains the sum of NUM OF MOUNTS for each system. |
AVG MOUNT TIME | Average mount pending time for the tape device The field is reported as hh:mm:ss; the maximum time reported in this field is 99:59:59. The device SUMMARY line contains the weighted average of the values of the reported systems. The weighting factor for a system is the ratio of the number of mounts on that system over the total number of mounts on all reported systems. |
TIME DEVICE ALLOC | Total time that the tape device was allocated during the reporting interval The field is reported as hh:mm:ss; the maximum time reported in this field is 99:59:59. The device SUMMARY line contains the sum of TIME DEVICE ALLOC for each system. |
SUMMARY | Total number of DASD and tape devices found on all systems |
# OF DEVICES - DASD | Total number of DASD devices used on the system |
# OF DEVICES - TAPE | Total number of tape devices used on the system |
1 The device SUMMARY line contains the weighted average of the values of the reported systems. The weighting factor for a system is the ratio of the I/Os by that system over the total I/Os by all reported systems.