The CA MICS STK VSM VTSS System Capacity Summary report is
created from measurements in the Subsystem Performance
Request (SVTSSP) and Channel Interface Performance (SVTCIP)
files. The report displays the disk buffer usage in the VTSS
and the IO activity on the channel links between the VTSS and
the host, and between the VTSS and the real tape drives.
The report body displays the following measurements:
o Total disk buffer capacity (GB) (SSPAVTCP)
o Used disk buffer (GB) (SSPAVUCP)
o Free disk buffer (GB) (SSPAVFCP)
o Percentage of the disk buffer used (SSPPCUCP)
o Average number of IOs per link type, per interval, per
link. Link types are HOST and RTD (real tape drives).
Intervals are 15 minutes, and number of links depends on
the configuration of the site's virtual tape systems.
(CIPAVNIO)
o Maximum number of IOs per link type, per interval, per
link. (CIPMXNIO)
o Average control unit busy in seconds, per link type, per
interval, per link. (CIPAVCUB)
o Maximum control unit busy in seconds, per link type, per
interval, per link. Should not exceed 15 minutes, the
duration of an interval. (CIPMXCUB)
o Overall percentage control unit busy of all channels, per
link type. CIPPCCUB)
o Total IOs per link type. (CIPNIO)
To produce the report:
o Enter the CA MICS Workstation Facility (MWF)
o Choose option 2, CA MICS Information Center Facility
(MICF)
o Choose option 2, Database Inquiries
o Select TAPLSC, whose Catalog Group is PERFORM
o Complete the MICF Execution panel
o Complete the specification panel. Refer to section
3.2.2.1, StorageTek VSM MICF Inquiry Specification
Panels, for information about modifiable panel fields.
The following report sample shows the hourly capacity of the
disk buffer and the throughput of the IO changes from the
host to the VTSS and the VTSS to the real tape drives for a
day.
INQUIRY: TAPLSC CA MICS STK VSM VTSS System Capacity Summary RUN DATE: 18AUGyy Data Presented by Hour within Day Page 001 VTSS Library ID:VTSS1 Report Start: 27MAYyy:23:47 Report End : 29MAYyy:01:21 Timespan : DAYS ---------------------------------------------------------------------------------------------------------------------------------- Day: 28MAYyy ---Disk Buffer Summary----+-----------Host Links--------------------------+-----------RTD Links--------------------------+ -----------Capacity-------| Per Interval / Per Link---+-----Totals-----|----Per Interval / Per Link---+----Totals---- | Total Used Free % | Avg I0 Max IO Av CU Mx CU| % Total | Avg IO Max IO Av CU Mx CU| % Total | HOUR (GB) (GB) (GB) Used | Busy Busy |Busy IOs | Busy Busy |Busy IOs | ---- ----- ----- ----- ---- -------- -------- ----- ----- ---- ---------- -------- -------- ----- ----- ---- ---------- 0 3,481 1,855 1,626 53% 49733 209661 2:42 10:04 18% 4774369 135076 463031 3:33 9:43 24% 4322425 1 3,481 1,813 1,668 52% 68377 230851 3:40 12:15 24% 6564195 173268 443137 4:23 9:55 29% 5544577 2 3,481 1,852 1,629 53% 56681 199266 3:25 10:52 23% 5441341 140737 378517 3:24 7:52 23% 4503571 3 3,481 1,870 1,610 54% 66578 270513 2:55 9:56 19% 6391471 78744 234737 1:58 4:57 13% 2519799 4 3,481 1,835 1,645 53% 57021 198558 2:41 9:09 18% 5474028 153239 412134 4:35 10:55 31% 4903641 5 3,481 1,838 1,643 53% 60968 208075 3:23 10:52 23% 5852882 149002 365479 3:47 8:38 25% 4768063 6 3,481 1,864 1,617 54% 61570 235963 3:33 11:24 24% 5910763 196036 568586 5:50 12:58 39% 6273145 7 3,481 1,827 1,654 52% 63609 209064 3:24 11:30 23% 6106503 234893 572075 7:16 12:51 48% 7516567 8 3,481 1,794 1,687 52% 61872 199899 3:20 10:59 22% 5939667 253966 605433 7:52 13:25 52% 8126909 9 3,481 1,791 1,689 51% 61616 209684 2:37 9:08 17% 5915172 169352 472365 7:06 11:52 47% 5419251 10 3,481 1,829 1,652 53% 53602 213541 2:26 8:33 16% 5145797 132931 212386 6:08 11:43 41% 4253786 11 3,481 1,867 1,614 54% 47454 195411 1:43 6:50 11% 4555629 203886 362883 9:14 13:14 62% 6524366 12 3,481 1,816 1,665 52% 41546 199712 1:41 5:40 11% 3988450 238642 420800 9:55 13:47 66% 7636544 13 3,481 1,780 1,701 51% 31987 121239 2:10 8:20 14% 3070726 220149 414812 8:54 14:13 59% 7044759 14 3,481 1,805 1,676 52% 34643 136273 1:40 6:08 11% 3325719 192073 495373 7:59 14:34 53% 6146343 15 3,481 1,832 1,648 53% 35707 127115 1:30 5:50 10% 3427884 97646 424607 4:08 14:36 28% 3124678 16 3,481 1,863 1,618 54% 30998 126288 0:57 3:48 6% 2975812 128142 501556 5:53 14:40 39% 4100549 17 3,481 1,818 1,663 52% 25495 100602 1:20 5:20 9% 2447526 168482 406792 6:51 13:34 46% 5391410 18 3,481 1,774 1,707 51% 14242 60405 1:05 5:26 7% 1367222 205305 463514 7:46 14:29 52% 6569752 19 3,481 1,758 1,723 51% 9901 52627 0:40 3:08 4% 950528 151802 376472 6:08 14:41 41% 4857665 20 3,481 1,739 1,741 50% 28034 159918 1:37 7:47 11% 2691257 193020 452482 6:48 14:50 45% 6176643 21 3,481 1,774 1,706 51% 55534 299780 2:15 9:08 15% 5331278 80151 278290 2:05 5:29 14% 2564826 22 3,481 1,815 1,666 52% 15786 58673 1:34 6:02 10% 1515494 67822 303456 1:42 6:01 11% 2170304 23 3,481 1,849 1,631 53% 55699 211758 2:22 8:39 16% 5347142 120716 344082 2:48 7:02 19% 3862923 ----------------------------------------------------------------------------------------------------------------------------------
Figure 3-14. STK VSM VTSS System Capacity Summary
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