IBM SY44-5902-05 manual Control Panel Functions, Values for IPL types, key modes, and speeds

Chapter 5. Control Panel Functions

Values for IPL types, key modes, and speeds . . . 159 Control Panel Functions (Models 150, 170, 250, 4xx, 50x, 51x, 530, 53S, 6xx, 7xx, SB1, and Sxx) . . . . 160

Ways to access the control panel (Models 150, 170, 250, 4xx, 50x, 51x, 530, 53S, 6xx, 7xx, SB1,

and Sxx) . . . . . . . . . . . . . . 162 Control panel function descriptions (Models 150, 170, 250, 4xx, 50x, 51x, 530, 53S, 6xx, 7xx, SB1,

and Sxx) . . . . . . . . . . . . . . 162 Customer control panel functions (Models

150, 170, 250, 4xx, 50x, 51x, 530, 53S, 6xx, 7xx, SB1, and Sxx) . . . . . . . . . . . 162 Extended control panel functions (Models

150, 170, 250, 4xx, 50x, 51x, 530, 53S, 6xx, 7xx, SB1, and Sxx) . . . . . . . . . . . 169

Low-Level Debug (LLD) panel functions
(Models 150, 170, 250, 4xx, 50x, 51x, 530, 53S,
6xx, 7xx, SB1, and Sxx)	.	171
Control panel functions (Models 270, 8xx, SB2, SB3,
and 890)	.	174
Ways to access the control panel (Models 270,
8xx, SB2, SB3, and 890)	.	175
Control panel function descriptions (Models 270,
8xx, SB2, SB3, and 890)	.	177
Customer control panel functions (Models
270, 8xx, SB2, SB3, and 890)	.	177
Extended control panel functions (Models
270, 8xx, SB2, SB3, 890)	.	185
Low-Level Debug (LLD) panel functions
(Models 270, 8xx, SB2, SB3, and 890) . .	. 188

Values for IPL types, key modes, and speeds

Table 13, Table 14, and Table 15 describe the valid IPL types, key modes, and speeds that are used in control panel functions 01 and 02.

Table 13. IPL types

IPL type	Action or description
A	IPL from disk using copy A of the system Licensed Internal Code.
B	IPL from disk using copy B of the system Licensed Internal Code.
C	Reserved for hardware service use only under the direction of
	Rochester development support. Attention: Severe data loss can occur
	with improper use of this function.
D	IPL from media other than load-source disk. Alternate IPL for code
	installation support.
Table 14. Key mode values
Key mode	Action or description
Manual (M)	Allows you to access DST and perform an attended IPL.
Normal (N)	Allows you to access the operating system and perform an unattended
	IPL.
Secure	Locks the control panel on the system unit. Found only on systems
	with an electronic keystick.
Auto	Locks most control panel functions. Automatic IPLs are allowed. Found
	only on systems with an electronic keystick.
Table 15. IPL speeds
IPL speed	Action or description	Details
F:	Fast override for one IPL.	Fast IPL run. Some hardware diagnostics
		are skipped.

© Copyright IBM Corp. 1997, 2002 159