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The I/O Configuration Analysis inquiries produce six primary
reports. Each of these reports allows you to analyze a
different facet of the performance of your I/O configuration.
The reports are:
o Shared DASD Analysis Report - Details the utilization
and performance impacts of DASD devices that are shared
by multiple systems. A sample Shared DASD Analysis
Report is shown in Figure 2-82.
o I/O Response Time Component Analysis Report - Breaks
device response time into internal queuing, queue for
control unit, queue for device, and start I/O times. A
sample I/O Response Time Component Analysis Report is
shown in Figure 2-83.
o DASD Skew Analysis Report - Analyzes DASD device
strings to identify strings that have heavily utilized
devices that adversely influence the performance of the
remainder of the devices on the string. A sample DASD
Skew Analysis Report is shown in Figure 2-84.
o DASD Multiple Volume Analysis Report - Provides
suggested volume groupings for DASD volumes to higher
density devices. An analysis of existing DASD volumes
can also be produced. A sample DASD Multiple Volume
Analysis report is shown in Figure 2-85.
o Tape Drive Simulation Analysis Report - Analyzes the
utilization of the tape drive subsystem. Modeling the
effects of changes in the tape drive subsystem's
workload can also be done. A sample Tape Drive
Simulation Analysis report is shown in Figure 2-86.
o Channel Resource Usage Summary Report - Analyzes the
performance of each FICON channel across a user provided
time interval to quantify channel performance and to
identify potential sources of performance problems.
Additionally, two other reports, the Processor Complex &
Channel Configuration and the Channel Resource Usage
Detail reports, and the Channel Service Time graphs can
be optionally produced as well. Each of these reports
will be discussed in more detail in a later section.
The operation and interpretation of each of these reports are
discussed in detail in the remainder of this chapter. The
algorithms used to produce these reports are discussed in the
technique tutorials in Sections 2.4.3.2, 2.4.4.2, 2.4.5.2,
2.4.6.2, 2.4.7.2 and 2.4.8.2.
CA MICS Performance Manager SHARED DASD ANALYSIS REPORT INTERVAL START: 03JANyy:23:59 INTERVAL END : 04JANyy:15:59 DURATION : 16:00 DEV DEVICE TOTAL % ---AVERAGE TIME (MS)--- DEV SIO % % AV RESP AV SERV AV QUE ADR VOLSER TYPE SIO UTIL RESP. SERVICE QUEUE SYSID ADR COUNT SIO UTIL TIME MS R/R TIME MS R/S TIME MS R/Q ---- ------ -------- ----- ----- ------- ------- ------- ----- ---- ----- --- ----- ------- --- ------- --- ------- --- 16C PAG16C 3380 111E3 12.5 33.3 32.5 0.8 SYSA 16C 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SYSB 16C 111E3 100 12.5 33.3 1.0 32.5 1.0 0.8 1.0 SYSC 16C 22 0 0.0 45.5 1.4 45.5 1.4 0.0 0.0 16D SMF302 3380 95251 7.2 21.2 21.0 0.2 SYSA 16D 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SYSB 16D 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SYSC 16D 95251 100 7.2 21.2 1.0 21.0 1.0 0.2 1.0 161 PAG161 3380 83489 6.4 23.4 22.0 1.4 SYSA 161 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SYSB 161 83467 100 6.4 23.4 1.0 22.0 1.0 1.4 1.0 SYSC 161 22 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 168 PAG168 3380 108E3 12.6 34.3 33.4 0.9 SYSA 168 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SYSB 168 108E3 100 12.6 34.3 1.0 33.4 1.0 0.9 1.0 SYSC 168 22 0 0.0 45.5 1.3 0.0 0.0 45.5 49 169 SMF301 3380 37098 2.8 21.6 21.1 0.6 SYSA 169 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SYSB 169 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SYSC 169 37098 100 2.8 21.6 1.0 21.1 1.0 0.6 1.0 17D PAG17D 3380 47671 7.0 57.0 42.6 14.5 SYSA 17D 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SYSB 17D 47649 100 7.0 57.1 1.0 42.6 1.0 14.5 1.0 SYSC 17D 22 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17F M33803 3380 82955 4.4 25.5 21.3 4.3 SYSA 17F 44738 54 1.8 29.6 1.2 23.0 1.1 6.7 1.6 SYSB 17F 20426 25 1.3 21.1 0.8 18.7 0.9 2.4 0.6 SYSC 17F 17791 21 1.3 20.2 0.8 19.9 0.9 0.3 0.1 171 PAG171 3380 47988 6.6 52.0 39.5 12.6 SYSA 171 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SYSB 171 47966 100 6.6 52.1 1.0 39.5 1.0 12.6 1.0 SYSC 171 22 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 173 PAG173 3380 47793 6.4 50.2 38.3 11.9 SYSA 173 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SYSB 173 47771 100 6.4 50.3 1.0 38.3 1.0 11.9 1.0 SYSC 173 22 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 174 M33801 3380 38972 2.0 21.0 19.9 1.1 SYSA 174 20741 53 0.7 20.4 1.0 19.0 1.0 1.4 1.3 SYSB 174 7622 20 0.5 18.8 0.9 18.1 0.9 0.7 0.6 SYSC 174 10609 27 0.9 23.8 1.1 23.0 1.2 0.8 0.8
Figure 2-82. Sample MVS/370 Version of Shared DASD Analysis Report
CA MICS Performance Manager DASD I/O RESPONSE TIME COMPONENT ANALYSIS INTERVAL START: 06JUNyy:08:59 INTERVAL END : 06JUNyy:10:59 DURATION : 2:00:00 SYSID : SYSA -------------RESPONSE TIME COMPONENTS (MS)------------- DEV DEVICE SSCH % ------------AVERAGE TIME (MS)------------ . 1 . 2 . 3 . 4 . 5 . NO. VOLSER TYPE RATE BUSY RESP QUEUE PEND DISC CONN ESCON 1234567890123456789012345678901234567890123456789012345 ---- ------ -------- ----- ----- ------ ------ ------ ------ ------ ------ ------------------------------------------------------- 140 WORK41 3390 5.9 9.8 20.1 1.7 1.7 13.8 2.8 0.0 QQPPDDDDDDDDDDDDDDCCC 142 PAG403 3390 4.4 12.7 28.9 0.0 0.2 17.3 11.5 0.0 DDDDDDDDDDDDDDDDDCCCCCCCCCCC 143 AAA902 3390 2.1 4.1 20.6 0.5 0.8 14.5 4.9 0.0 PDDDDDDDDDDDDDDCCCCC 145 SPOOL1 3390 6.2 11.6 23.2 4.4 0.1 16.2 2.5 0.0 QQQQDDDDDDDDDDDDDDDDCC 147 AAA904 3390 1.4 3.1 22.4 0.8 0.2 14.6 6.8 0.0 QDDDDDDDDDDDDDDDCCCCCCC 148 SPAR05 3390 2.5 3.9 17.5 0.1 1.8 13.0 2.6 0.0 PPDDDDDDDDDDDDDCCC 14C AAA917 3390 1.1 2.2 21.9 0.4 0.3 16.5 4.7 0.0 DDDDDDDDDDDDDDDDCCCCC 240 VIPL01 3380 3.1 7.6 26.8 2.0 0.4 17.2 7.3 0.0 QQDDDDDDDDDDDDDDDDDCCCCCCC 241 AAA909 3380 1.3 2.2 17.7 0.2 0.7 13.1 3.6 0.0 PDDDDDDDDDDDDDCCCC 242 PAG401 3380 3.8 15.1 40.4 0.0 0.3 27.6 12.5 0.0 DDDDDDDDDDDDDDDDDDDDDDDDDDDDCCCCCCCCCCCC 246 AAA923 3380 6.7 10.9 17.0 0.4 0.2 10.0 6.4 0.0 DDDDDDDDDDCCCCCC 24B AAA914 3380 2.9 6.0 21.5 0.6 0.4 16.6 4.0 0.0 QDDDDDDDDDDDDDDDDDCCCC 24C AAA916 3380 1.6 3.2 21.2 0.4 0.5 13.6 6.7 0.0 DDDDDDDDDDDDDDCCCCCCC 250 PAG404 3380 4.1 14.8 36.2 0.0 0.3 24.3 11.6 0.0 DDDDDDDDDDDDDDDDDDDDDDDDCCCCCCCCCCCC 252 WORK44 3380 5.1 11.7 26.1 1.6 1.6 14.3 8.6 0.0 QQPPDDDDDDDDDDDDDDCCCCCCCCC 255 WORK45 3380 8.0 22.0 32.8 4.5 0.8 17.3 10.2 0.0 QQQQPDDDDDDDDDDDDDDDDDCCCCCCCCCC 25A PAG405 3380 2.1 4.1 21.5 0.9 0.7 17.4 2.4 0.0 QPDDDDDDDDDDDDDDDDDCC 25B WORK46 3380 2.4 6.1 28.4 1.5 1.8 14.8 10.3 0.0 QPPDDDDDDDDDDDDDDDCCCCCCCCCC 25D PAG406 3380 2.1 13.2 65.0 0.0 0.8 55.6 8.6 0.0 PDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD+ 25E WORK47 3380 3.6 7.9 22.7 0.2 0.7 12.7 9.2 0.0 PDDDDDDDDDDDDDCCCCCCCCC 25F WORK48 3380 2.2 6.4 32.5 2.0 1.2 15.9 13.4 0.0 QQPDDDDDDDDDDDDDDDDCCCCCCCCCCCCC
Figure 2-83. Sample I/O Response Time Component Analysis Report
CA MICS Performance Manager 13:08 WEDNESDAY, DECEMBER 19, yyyy DASD SKEW ANALYSIS - DAYS LEVEL INTERVAL START: 15NOVyy:09:52 INTERVAL END : 15NOVyy:10:52 DURATION : 1:00:05 SYSID : SYSA CU / AV LCU TOTAL TOTAL TYPE CV / PATH LCU SERV MS SSCH RTE % HOS LINE DEV 1 DEV 2 DEV 3 DEV 4 DEV 5 DEV 6 DEV 7 DEV 8 SKEW ----- ---- ------- -------- ------- -------- ------- ------- ------- ------- ------- ------- ------- ------- ------- 1A0-0 0005 10.26 33.2 34.08 DEV NO. 1A0 1A1 1A2 1A3 1A4 1A5 1A6 1A7 --SEE-- * DLS * SSCH RT 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.3 -BELOW- ANY TWO AV SERV 30.63 0.00 37.06 0.00 0.00 0.00 0.00 21.60 DEVICES % PATH 0.12 0.00 0.00 0.00 0.02 0.00 0.00 0.21 CAN BE VOLSER WORK21 XTG001 BENSC2 FYQ001 WORK30 WORK31 PIANO1 WMN017 ACTIVE STGGRP N/A N/A N/A N/A N/A N/A N/A N/A DEVTYPE 3380J 3380J 3380J 3380J 3380J 3380J 3380J 3380J 1A0-0 0005 -------SEE ABOVE------- DEV NO. 1A8 1A9 1AA 1AB 1AC 1AD 1AE 1AF 2.14 * DLS * SSCH RT 0.0 0.0 0.0 31.5 0.0 0.1 0.0 1.1 1.36 ANY TWO AV SERV 0.00 0.00 0.00 22.16 0.00 10.21 0.00 22.48 DEVICES % PATH 0.00 0.00 0.00 32.96 0.00 0.02 0.00 0.76 CAN BE VOLSER PIANO5 FAT1B9 CIS001 FAT1BB FAT1BC FAT1BD FAT1BE TECSYS ACTIVE STGGRP N/A N/A N/A N/A N/A N/A N/A N/A DEVTYPE 3380J 3380J 3380J 3380J 3380J 3380J 3380J 3380J 1B0-0 0005 9.30 15.7 14.60 DEV NO. 1B0 1B1 1B2 1B3 1B4 1B5 1B6 1B7 --SEE-- * DLS * SSCH RT .15 0.4 0.0 0.4 0.1 0.0 3.3 0.0 -BELOW- ANY TWO AV SERV 10.78 22.82 0.00 23.73 15.84 18.48 16.26 16.53 DEVICES % PATH 0.32 0.53 0.00 0.21 0.02 0.00 0.80 0.00 CAN BE VOLSER WORK22 WORK26 WORK23 CH0100 PIANO2 PIANO4 BES003 BES001 ACTIVE STGGRP N/A N/A N/A N/A N/A N/A N/A N/A DEVTYPE 3380J 3380J 3380J 3380J 3380J 3380J 3380J 3380J 1B0-0 0005 -------SEE ABOVE------- DEV NO. 1B8 1B9 1BA 1BB 1BC 1BD 1BE 1BF 2.25 * DLS * SSCH RT 10.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.13 ANY TWO AV SERV 24.30 0.00 48.81 0.00 0.00 0.00 0.00 0.00 DEVICES % PATH 12.71 0.00 0.02 0.00 0.00 0.00 0.00 0.00 CAN BE VOLSER WMN003 WMN004 IPN001 WMN006 PIANO3 IPN002 CS0101 PIANO6 ACTIVE STGGRP N/A N/A N/A N/A N/A N/A N/A N/A DEVTYPE 3380J 3380J 3380J 3380J 3380J 3380J 3380J 3380J 1C0-0 0006 3.51 30.2 10.56 DEV NO. 1C0 1C1 1C2 1C3 1C4 1C5 1C6 1C7 --SEE-- * DLS * SSCH RT 0.0 0.0 0.1 0.1 0.5 8.5 2.1 0.6 -BELOW- ANY TWO AV SERV 15.81 0.00 38.00 27.63 15.84 18.48 16.26 16.53 DEVICES % PATH 0.00 0.00 0.11 0.08 0.10 3.30 0.41 0.15 CAN BE VOLSER SPL007 SPL008 WMN025 WMN026 WJEP03 WJEP04 FEJ000 DLIB23 ACTIVE STGGRP N/A N/A N/A N/A N/A N/A N/A N/A DEVTYPE 3380J 3380J 3380J 3380J 3380J 3380J 3380J 3380J 1C0-0 0006 -------SEE ABOVE------- DEV NO. 1C8 1C9 1CA 1CB 1CC 1CD 1CE 1CF 1.24 * DLS * SSCH RT 0.0 0.0 3.0 0.0 12.0 1.3 0.0 2.1 1.69 ANY TWO AV SERV 20.60 28.42 31.04 35.61 19.62 17.51 0.00 21.04 DEVICES % PATH 0.00 0.00 1.90 0.00 3.29 0.32 0.00 0.90 CAN BE VOLSER TEC003 WJEP18 IPN004 MICS02 FAT25C FAT25D WNM012 WNM013 ACTIVE STGGRP N/A N/A N/A N/A N/A N/A N/A N/A DEVTYPE 3380J 3380J 3380J 3380J 3380J 3380J 3380J 3380J
Figure 2-84. Sample DASD Skew Analysis Report
CA MICS Performance Manager DASD MULTIPLE VOLUME ANALYSIS INTERVAL START: 30SEPyy:07:30 INTERVAL END : 07SEPyy:17:59 DURATION : 26:00 SYSIDS : A370 B370 XA01 XA02 DEVICE DEVICE AVERAGE MAXIMUM VOLSER1 TYPE1 VOLSER2 TYPE2 PRODUCT SUM ------- ------ ------- ------ ------- ------- MIS380 3380 PAG104 3380 0.20 1.69 LIBS03 3380 PAG103 3380 2.18 5.49 PROD01 3350 TSSUCC 3350 8.28 14.01 HSMCTL 3380 SP3OL3 3380 35.84 69.13
Figure 2-85. Sample DASD Multiple Volume Analysis Report
CA MICS Performance Manager TAPE DRIVE ANALYSIS SUMMARY CHART TAPE ALLOCATION DURING ANALYSIS PERIOD STEP ALLOCATION ANALYSIS - PRORATING METHOD USED - SELECTION MACRO ACTIVE DATE ANALYZED=27APRyy HOUR ANALYZED=1 BAR CHART OF PGMMXNTA TESTTM TIME ANALYZED | 1:10:00 | | 1:12:00 | | 1:14:00 | | 1:16:00 | | 1:18:00 |CCCCCCCCCCCCCCCCCCCC | 1:20:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | 1:22:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC 1:24:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC 1:26:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC 1:28:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC 1:30:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | 1:32:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | 1:34:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC 1:36:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC 1:38:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | 1:40:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | 1:42:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | 1:44:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC 1:46:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC 1:48:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC 1:50:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC 1:52:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | 1:54:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC 1:56:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC 1:58:00 |CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC ----+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4 4.6 4.8 5 5.2 5.4 5.6 5.8 6 TAPE DEVICES ALLOC SYMBOL SYM C CURRENT WORKLOAD
Figure 2-86. Sample Tape Drive Simulation Analysis Report
CA MICS Performance Manager FICON Channel Performance Analysis Channel Resource Usage Summary Report, by SYSID For Friday, September 3, yyyy Ending Date: 20JULyyyy Duration: 24:17:25 CEC Serial: 0851 LCSS: 0 CHPID: 42 Description: FICON Switched DCM in Use: Y CHPID Group: 2 Shared: Y Channel Usage: DASD BUS Usage Count: 739.8M BUS Util. Pct : 13.09 Total Work Units : 2.5G CHPID Pct Busy : 22.41 CHPID I/Os p/sec : 362 Bytes Read p/Sec: 5.1M Read Path % Busy : 4.27 Bytes Writ p/Sec : 3.3M Write Path % Busy: 2.81 Avg Burst Size: 23.4K Avg Svc Time (ms): 2.40 Est. Open Exchngs: 0.80 Estimated Credits: 10 LPAR Usage Stats: Total Bytes Read Total Bytes Write Total Avg Average Avg Total Bytes Read Total Bytes Write Total Avg Average Avg Work CHPID Bytes Read Path Bytes Written Path I/O I/Os Burst Svc Time Open Estimd. SYSID Units % Busy Read p/sec % Busy Written p/sec % Busy Count p/sec Size (ms) Xchngs Credits CA11 80M 0.71 8G 98.3K 0.08 11G 125.9K 0.10 1M 19 11.2K 2.39 0.04 0 CA31 566M 4.97 136G 1.5M 1.30 132G 1.5M 1.26 5M 68 44.8K 1.34 0.08 2 CA71 20M 0.18 2G 25.5K 0.02 4G 47.5K 0.04 615K 7 10.3K 1.91 0.01 0 XAD1 1G 13.81 231G 2.6M 2.21 98G 1.1M 0.94 20M 240 15.7K 2.66 0.59 5 XAE1 21M 0.19 4G 49.0K 0.04 5G 60.8K 0.05 392K 4 24.5K 2.86 0.01 0 XAT1 12M 0.11 7G 91.1K 0.08 1G 19.3K 0.02 199K 2 48.3K 3.67 0.01 0 XA55 6M 0.06 1G 12.1K 0.01 2M 26 0.00 222K 2 4.8K 2.41 0.01 0 XE21 39M 0.35 10G 115.2K 0.10 9G 109.8K 0.09 453K 5 43.3K 2.12 0.01 0 XE44 40M 0.36 15G 176.6K 0.15 6G 76.0K 0.06 881K 10 25.0K 3.49 0.03 0 XE61 64M 0.56 17G 194.7K 0.16 18G 209.5K 0.17 127K 1 277.1K 2.74 0.00 0
Figure 2-86A. Sample Channel Resource Usage Summary Report
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