Sys_Exer - Digital Equipment 3300R Service Manual

Running System Diagnostics

sys_exer

The sys_exer command runs diagnostics for the system. The same tests that are run using
the test command are run with sys_exer, only these tests are run concurrently and in the
background. Nothing is displayed, after the initial test startup messages, unless an error
occurs.
The diagnostics started by the sys_exer command automatically reallocate memory
resources, as these tests require additional resources. The init command must be used to
reconfigure memory before booting an operating system.
Because the sys_exer tests are run concurrently and indefinitely (until you stop them with
the init command), they are useful in flushing out intermittent hardware problems.
When using the sys_exer command after shutting down an operating system, you must
initialize the system to a quiescent state. Enter the following command at the SRM
console:
>>> init
...
>>> sys_exer
By default, no write tests are performed on disk and tape drives. Media must be installed
to test the floppy drive and tape drives. A loopback connector is required for the COM2
(9-pin loopback connector, 12-27351-01) port and parallel port (25-pin loopback
connector) when the -lb argument is used.
Syntax
sys_exer [-lb]
Argument:
[-lb]
3–6 DIGITAL Server 3300/3300R
The loopback option includes console loopback tests for the COM2
serial port and the parallel port during the test sequence.