IBM 3708 Description page 57

Alert, Error, and EEIF Logs
Alert Log
Error Log
The 3708 maintains three log areas in EEPROM; Alert Log, Error Log, and
Extended Error Information Field. The Alert Log and the Error Log are updated in
RAM and then written to EEPROM when the first error occurs after power on and
after each four hours from that point on. A third log is the Extended Error
Information Fields (EEIF). The EEIF is only written to EEPROM for a Stop on
Error condition. None of these three logs are written to EEPROM when there is a
Restart Loop.
The Alert Log gives the control terminal operator information about error
conditions. This is in addition to the Alerts and Vectors which may have been sent
to the NetView or NPDA program at the SNA Communications Network
Management (CNM) Host. The logging of 3708 alerts is independent of whether or
not there is an SNA host and whether or not the host link is active. Usually, normal
3708 operations continue after an entry is made in the alert log. The 3708 stores up
to the last seven alerts.
The error log gives 3708 maintenance personnel information about error conditions.
The error log is presented as one entry per line. Each entry is 14 bytes of
hexadecimal data. Usually, normal 3708 operations continue after an entry is made
in the error log.
Extended Error Information Field (EEIF)
The EEIF area gives 3708 maintenance personnel data about serious error
conditions. Data is only captured when a serious failure occurs and Stop on Error is
set. The 3708 stops after the error information is written to EEPROM. The base
Not Ready light is on solid and the cartridge light is off. Refer to IBM 3708
Network Conversion Unit Problem Determination
for instructions.
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IBM 3708 Description