Performing an IOP dump

You can perform I/O processor storage dumps by using the control panel or by using the Hardware Service Manager.

Choose from the following to perform an IOP dump:

Performing an IOP dump using the control panel
Performing an IOP dump using the Hardware Service Manager

Performing an IOP dump using the control panel

Do the following to perform an IOP dump:

Select Manual system operating mode.
Select control panel Function 25 (service switch 1 function).
Press Enter on the control panel.
Select control panel Function 26 (service switch 2 function).
Press Enter on the control panel.
Select control panel Function 67 (disk unit IOP reset/reload).
Press Enter on the control panel.
Wait for one of the following completion SRCs:
- 11xx A1XX8ABF
- 11xx B1XX8ABF
- 11xx D1XX8ABF
The data is now written to disk.
Save the MFIOP data for the storage dump to tape or diskette. See Copying the IOP storage dump to removable media.

Performing an IOP dump using the Hardware Service Manager

You can perform I/O processor storage dumps by using the I/O debug option on the Logical Hardware Resources display (under Hardware Service Manager). Use this utility under the direction of your next level of support. For more information on the Hardware Service Manager function, see Hardware Service Manager.

The Logical Hardware Resources display (under Hardware Service Manager) lists the logical resources that are attached to the system bus. Select the I/O debug option to access the IOP dump function. The IOP dump function allows you to collect, display, print, and save data from the I/O processor. The dump is written to a temporary disk storage area. When you exit the Hardware Service Manager function, the dump is lost.