
16-4 Troubleshooting startup problems
Normal startup sequence
Standard 1.0 Modular Option EC Installation and Maintenance Guide November 1999
Normal startup sequence
Introduction
When you power on Meridian Mail, the Enhanced MMP40
(or MMP40) card must first initialize itself and perform self-
diagnostics. Then it boots up the other system elements (non-
prime nodes and the disk subsystem) and performs diagnostics
on them. Finally, it loads the Meridian Mail operating system
and the user interface.
The Enhanced MMP40 (or MMP40) initialization phase can be
monitored using the hexadecimal display on the Enhanced
MMP40 card. The bootup can usually be monitored using the
text displayed on the terminal. The following sections describe
the LED, hexadecimal display, and progression through bootup.
Note: If you encounter difficulty during a normal startup
sequence, refer to Appendix C, “Enhanced MMP40 (or
MMP40) troubleshooting flowcharts,” to determine causes and
solutions of potential problems.
Power on
initialization—LED
and hexadecimal
display description
A hexadecimal display on the upper-front edge of the Enhanced
MMP40 (or MMP40) card provides information for diagnosing
some system problems in the field. See “Hexadecimal display
on Enhanced MMP40 card” on page 16-5.
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