2. PERFORMANCE REPORTING ANALYSIS › 2.4 I/O Configuration Analysis › 2.4.3 Shared DASD Analysis Inquiry › 2.4.3.3 Case Study › 2.4.3.3.2 Inquiry Panel

2.4.3.3.2 Inquiry Panel

We used I/O Configuration Analysis routines to study the
impact of the shared DASD effects on system SYSA, one of
three IBM 3081s that shared many of the DASD volumes in the
configuration.  (NOTE:  Section 2.4.3.4.1 presents a detailed
description of the inquiry fields on the IOA Shared DASD
Analysis Report inquiry panel.)

We selected the peak morning and afternoon periods (hours 9,
10, 14, and 15) for the study over a four-day period.  We
denoted the CA MICS database unit that contained the
installation's hardware data by database identifier B.   The
inquiry fields for the study are shown in Figure 2-89. The
generated report is shown in Figure 2-90.

/-----------------------  IOA Shared DASD Analysis Report  -----------------------\
| Command ===>                                                                    |
|                                                                                 |
| Composing CA MICS Inquiry: IOA08 - Shared DASD Case Study                       |
|                                                                                 |
| Time-span ===> DETAIL (DETAIL/DAYS)                      Cycle(s) ===> 01 - 04  |
| Data base ===> B (PRIMARY)  _            _            _            _            |
| Allow Run-Time Override of Data Base ===> N (Y/N) and/or Cycle(s) ===> N (Y/N)  |
|                                                                                 |
| Shared System (All sharing systems will be reported)     ===> SYSA              |
| Report by time interval ===> N (Y/N)   Minimum I/O rate  ===> 1    (.001 - 999) |
|                                                                                 |
| Usage qualification processing:                                                 |
|  CA MICS Element to test===> ________ (Any numeric HARDVA element)              |
|  Operator to employ     ===> __       (LE,LT,GT,GE)                             |
|  Numeric value to test  ===> ________ (.0000000 - 99999999)                     |
|                                                                                 |
| Data Selection:                                        Allow run-time override  |
|   Date         ===> _______ - _______   _______ - _______         ===> N (Y/N)  |
|   Hour         ===> 09 - 10    14 - 15    __ - __                 ===> N (Y/N)  |
|   Zone         ===> _ _ _ _ _ _ _ _ _                             ===> N (Y/N)  |
|                                                                                 |
| Specify extended options ===> N (Y/N)                                           |
|                                                                                 |
\-------------------------------------------------------------------------------/

 Figure 2-89.  Case Study - IOA Shared DASD Analysis Report Inquiry Panel