2. PERFORMANCE REPORTING ANALYSIS › 2.4 I/O Configuration Analysis › 2.4.4 DASD I/O Component Analysis Inquiry › 2.4.4.4 Component Operation › 2.4.4.4.3 Global Data Selection Panel

2.4.4.4.3 Global Data Selection Panel

If you enter Y (yes) in the Specify global data selection
exit field, the Global Data Selection Panel, which is shown
in Figure 2-103, is displayed. This panel allows you to enter
SAS statements that will perform special data selection
functions in addition to the normal DATE/HOUR/ZONE option on
the main inquiry panel.

If all the DASD in your configuration is IBM, the device
types reported by RMF (CA MICS data element DEVTYPE) will be
correct.  If some of your DASD is from another manufacturer,
the value of DEVTYPE may not reflect the true manufacturer
device designation.

For instance, Amdahl 6380 disk drives will be reported as
3380s.  If this is the situation at your installation,
specify a global data selection exit to change the value of
DEVTYPE so that you can compare the devices of each
manufacturer.

To illustrate the use of these control statements, consider a
configuration containing IBM 3380s at addresses 480 to 48F
and Amdahl 6380s at addresses 580 to 58F.  In order to make
comparisons between the IBM and Amdahl devices, you would
code the SAS statements as shown below:

/--------------------------------  SAS Statements  -------------------------------\
| Command ===>                                                  Scroll ===> CSR   |
|                                                                                 |
| Inquiry Step:  IOA DASD Component Analysis                                      |
|                                                                                 |
| Line Cmds: I Insert  D Delete  R Repeat  M Move  C Copy                         |
|                                                                                 |
| Cmd  SAS Statements for:  Specifying global data selection                      |
|  -   ------------------------------------------------------------------------   |
|  _ - %MACRO SELECT;                                                             |
|  _ - IF DEVADDR=:'48' THEN DEVTYPE='3380';                                      |
|  _ - IF DEVADDR=:'58' THEN DEVTYPE='6380';                                      |
|  _   ________________________________________________________________________   |
|  _   ________________________________________________________________________   |
|  _   ________________________________________________________________________   |
|  _   ________________________________________________________________________   |
|  _   ________________________________________________________________________   |
|  _   ________________________________________________________________________   |
|  _   ________________________________________________________________________   |
|  _   ________________________________________________________________________   |
|  _ - %MEND SELECT;                                                              |
| ****************************** BOTTOM OF DATA  ******************************** |
|                                                                                 |
\-------------------------------------------------------------------------------/

 Figure 2-103. DASD I/O Component Analysis Report Global Data Selection Panel