Adding I/O destination devices

Mainframe Analytics Recorder User Guide

Version

10.1.x

Audience

anonymous

Part Number

MK-92HC226-08

ft:lastEdition

2026-01-30

If LDEV information is collected from a lot of volumes, you can shorten the time required to collect the information by increasing the number of I/O destination devices. The following is an example of how to add an I/O destination device.

In the example, an I/O destination device is added to shorten the time required to collect the information.

If the disk configuration for the I/O destination device to be added has not been acquired, execute the disk configuration acquisition program.
- Parameters input from the SYSIN:
```
PREFIX(USER01)
DEVN(4000)
```
Information about the volume (DEVN: 4000) is added to the disk configuration definition file (USER01.DSK.SN53038.LOCAL).
Change the settings of the metric collection parameter.
- Add the I/O destination device 4000 to IODEVN of the SET parameter.
```
SET IODEVN(2000)  ->  SET IODEVN(2000,4000)
```
Use the REFRESH command to update the metric collection environment.
```
F RS1,RE
```
Changes to the metric collection environment are applied from the next interval after metric collection for the current interval finishes.