8.174.4 Examples

Example 1:

Specify year 1900 as the base date for the TOD clock and use an offset of 28 years.

HHC00013I Herc command: 'sysepoch 1900 +28'

Figure 309: SYSEPOCH command (with offset)

Example 2:

Specify year 1960 as the base date for the TOD clock without an offset.

HHC00013I Herc command: 'sysepoch 1960'

Figure 310: SYSEPOCH command (without offset)

8.175 SYSRESET (SYSTEM RESET manual operation)

8.175.1 Function

The SYSRESET command issues a SYSTEM RESET manual operation. Without any arguments or with
the “NORMAL” argument only a CPU and I/O subsystem reset are performed. When the “CLEAR” argu-
ment is given then this command is identical function to the “SYSCLEAR” command.

Please note that all CPUs must be stopped prior to issuing a system reset or the function will be rejected
with a message.

8.175.2 Syntax

Descriptive

Diagram

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8.175.3 Parameter

NORMAL

Performs only a CPU and I/O subsystem reset. This is the same as “SYSRESET”
without any argument given.

CLEAR

This clears the main storage to x'00'. Additionally the general purpose registers,
control registers, etc. are reset to their initial value. At this point the system is es-
sentially in the same state as it was just after having been started. “SYSRESET
CLEAR” is identical in functionality to the “SYSCLEAR” command.

8.175.4 Examples

Example 1:

RESET CLEAR the system.

HHC00013I Herc command: 'stopall'

HHC00013I Herc command: 'sysreset clear'

HHC02311I sysreset clear completed

Figure 311: SYSRESET CLEAR command