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This report shows queues and delays on each logical control unit (LCU). It is broken down by LCU identifier. The data is summarized over all the intervals in the input data, EXTDATA type R78B.
The fields in the report are as follows:
Logical control unit identifier.
Average rate of I/O requests going through channel paths attached to this LCU.
Average percentage of requests deferred due to the director port and control unit being busy.
Average delay (in miliseconds) caused by the control unit being busy.
Average initial command-response-time delay (in milliseconds) between the first I/O function started and the first response from the device.
Average number of requests per second placed into the CU-HDR queue for this LCU. A request is placed in the CU-HDR queue if all paths to the control units are busy.
Average number of I/O requests waiting in the CU-HDR queue for this LCU.
Average delay (in miliseconds) caused by the channel subsystem.
Ratio of I/O requests that could not start because HyperPAV alias was not available, to all I/O requests for this LCU.
Maximum of HyperPAV aliases used at once for this LCU.
Estimate of average number of concurrently active I/O operations.
Estimate of average number of concurrently active data transfers.
1 2/20/08 I/O QUEUING - LOGICAL CONTROL UNITS REPORT PAGE 1 REPORT ID: EZXT0348 SYSPLEX: PLEXC1 SOURCE : SMF 78-3 SYSTEM: CA31 FROM DATE: 08/02/12 FROM TIME: 23:59:00 TO DATE: 08/02/13 TO TIME: 23:44:00 - LCU CHAN PATH PCT PD PCT CU AVG CUB AVG CMR CONTENTION DELAY AVG CSS HPAV HPAV AVG OPEN DATA XFER ID TAKEN BUSY BUSY DELAY DELAY RATE QUE LEN DELAY WAIT MAX EXCHANGES CONCURENCY 0000C .304 .51 44.63 .00 .00 .250 .00 .33 .00 .00 .00 001B .189 .00 .00 .00 .00 .000 .00 .00 .00 .00 .00 0022 .004 25.66 21.92 .15 .00 .004 .00 1.84 .00 .00 .00 0030 .004 .00 1.54 .00 .00 .000 .00 .14 .00 .02 .00 0032 2.581 .00 .00 .00 .00 .000 .00 .30 .00 .00 .00 0038 365.622 .00 .88 .00 .17 .023 .00 .21 .00 .35 .24 0039 109.062 .00 1.82 .00 .18 .000 .00 .18 .00 .09 .06 003A 164.218 .00 .17 .00 .16 .009 .00 .18 .00 .18 .12 003B 92.704 .00 1.04 .00 .17 .047 .00 .20 .00 .09 .05 003C 82.981 .00 2.45 .00 .17 .004 .00 .21 .00 .11 .08 003D 336.506 .00 .13 .00 .14 .003 .08 .19 .00 .25 .17 003E 314.724 .00 .03 .00 .14 .000 1.90 .17 .00 .22 .14 003F 78.647 .00 .07 .00 .18 .002 .82 .20 .00 .09 .05 0040 48.716 .00 .02 .00 .17 .001 .00 .20 .00 .04 .03 0041 148.411 .00 .06 .00 .17 .002 .00 .17 .00 .15 .11 0042 107.598 .00 .03 .00 .17 .001 .00 .17 .00 .10 .07 0043 179.386 .00 .35 .00 .16 .566 .00 .16 .00 .10 .06 0044 3.786 .00 .01 .00 .40 .000 .00 .19 .00 .00 .00 0045 179.260 .00 .11 .00 .17 .000 .00 .18 .00 .24 .19 0046 96.681 .00 .07 .00 .16 .000 .00 .15 .00 .07 .05 004F .000 .00 .00 .00 .22 .000 .00 .11 .00 .00 .00 0051 .921 .00 .00 .00 .76 .000 .00 1.86 .00 .03 .00 0053 .019 .00 .00 .00 1.08 .000 .00 4.18 .00 .00 .00 0054 .328 .00 .00 .00 .77 .000 .00 2.17 .00 .01 .00 0055 .118 .00 .00 .00 .85 .000 .00 2.66 .00 .00 .00 0056 .008 .00 .00 .00 2.15 .000 .00 13.21 .00 .00 .00 0057 .029 .00 .00 .00 .87 .000 .00 3.19 .00 .00 .00 0058 .115 .00 .00 .00 1.55 .000 .00 7.85 .00 .01 .00 0059 .082 .00 .00 .00 .94 .000 .00 3.79 .00 .00 .00
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