Chapter 5. control panel functions, Values for ipl types, key modes, and speeds – IBM VERSION 5 SY44-5902-05 User Manual
Page 173
Chapter 5. Control Panel Functions
Values for IPL types, key modes, and speeds .
Control Panel Functions (Models 150, 170, 250, 4xx,
50x, 51x, 530, 53S, 6xx, 7xx, SB1, and Sxx) .
Control panel functions (Models 270, 8xx, SB2, SB3,
and 890) .
Ways to access the control panel (Models 270,
8xx, SB2, SB3, and 890) .
Control panel function descriptions (Models 270,
8xx, SB2, SB3, and 890) .
Customer control panel functions (Models
270, 8xx, SB2, SB3, and 890)
Extended control panel functions (Models
270, 8xx, SB2, SB3, 890) .
Low-Level Debug (LLD) panel functions
(Models 270, 8xx, SB2, SB3, and 890)
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
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