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6-6
C
6: T
HAPTER
ROUBLESHOOTING
Memory Dump
Procedures
Dumping Memory
to an RBCS Server
Dumping Memory
to a TFTP Host
Dumping Memory
to Diskettes
If the communications server fails during operation, you can write the
contents of the server's CPU registers and RAM to an RBCS or TFTP/FTP
server, or to diskettes. This procedure is called a memory dump.
The memory dump procedure depends on the communications server's
configuration. For example, if Auto-Reboot in the firmware configuration is
set for "Upload then reboot," the memory dump to the network is
automatic. If Auto-Reboot is set to "Boot monitor," the communications
server enters the monitor and waits for commands. You must attach a
terminal to the console port and enter the upload command
memory to the network, or
to "Reboot," no memory dump is performed, and the contents of memory
are overwritten.
A communications server crash is also reported in the audit trail. Technical
support staff can use audit trail and memory dump information to diagnose
the cause of the crash.
To write a memory dump to the RBCS server, you must set the boot
protocol to TFTP and establish a safepath on the RBCS server. The default
safepath is to the data/DUMP directory. If this directory is not already
present on the RBCS server, you must create it for the memory dump. If you
specify a different path for the TFTP Upload Path parameter, the memory
dump uses that path. For more information on the RBCS safepath function,
refer to the Remote Boot and Configuration Services User's Guide or release
notes. For information about the TFTP Upload Path parameter, refer to
Table 4-3.
To write a memory dump to a TFTP host, you must set the boot protocol to
TFTP, and the TFTP Upload Path parameter in the firmware configuration
must indicate where the dump should be written onto the host. Refer to
your TFTP server documentation to determine the appropriate directory. For
information about the TFTP Upload Path parameter, refer to Table 4-3.
You can dump memory to the communications server's diskette drive only
if the Auto-Reboot option has been disabled before the crash, and if the
reset switch on the server's front panel has not been pressed. Use the
Firmware Configuration Utility to set the Auto-Reboot parameter to "Boot
to dump it to diskettes. If Auto-Reboot is set
du
to dump
up
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