IBM SY44-5902-05 manual Introduction

Table 11. Data Collection Ranges for Models 270, 8xx, SB2, and SB3. Functions 57, 63,

and 64

Function	Description	Range
57	Addresses of service processor	5700 continue until you get 0000
	data structures	0000 four times or FF
63	Status SRC trace	6300 to 6318
64	Diagnostic SRC trace	6400 to 6420

Use the following procedure and record the data as shown.

1.Press the Increment (↑) button until the function you want appears in the Function display (example: 63).

2.Press Enter on the control panel; ** appears next to the function number to indicate that you are in the subfunction mode. This is the entry point and exit point for subfunction mode).

If the data is xx _ _ _ _ FF (where xx = the function number), this function is not available.

3.Press the Increment (↑) button until 00 is next to the function number.

4.Press Enter on the control panel. Data appears in the display. Record the data.

5.Press the Increment (↑) button to continue to the next subfunction (example: 5401).

6.Press Enter on the control panel. Record the data.

7.Repeat steps 5 and 6, increasing the subfunction number one at a time and recording the data until all the suitable data is collected.

8.Press the Increment (↑) or Decrement (↓) buttons to move from the last subfunction back to ** (example: 633F to 63**).

9.Press Enter on the control panel. Doing this takes you out of subfunction mode, and ** no longer appears.

Repeat steps 1 through 9 for additional data that you were instructed to collect.

Call your next level of support and give them the information you collected to write a LIC APAR.

Changing the address in functions 59 through 61 (Models 150, 170, 250, 4xx, 50x, 51x, 530, 53S, 6xx, 7xx, SB1, and Sxx)

Introduction

For this procedure, use the address you were given when you were sent to this procedure. The address consists of 4 bytes.

For Motorola** 68020 processor-based IOPs, you cannot control the first byte; 00 displays.

The xx, yy, and zz represent parts of the address.

For example, the address of 00002C80 has:

v00 in the xx position

v2C in the yy position

v80 in the zz position

Chapter 4. Service Reference Procedures 133