Tekram Technology DC-820B - Manual (Page 31)

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EISA Fast SCSI Caching Adapter
Adapter Error Log utility: This module provides the I/O error log informa-
tion for the devices controlled by the DC-820B(s). When this module is
selected, the screen will display the information of I/O port address corre-
sponding to each adapter, which is an Adaptec adapter or its compatible.
You may then further go through the specific adapter for viewing the Read/
Write error log information for all devices attached to it. This error log
information screen will show the times of error logged during the whole
device access history. Note that only the DC-820B and its series are able to
record the times of error.
There is a count limit of 31 for both read and write error logs. If one of them
exceeds 31, the DC-820B will issue a warning message through the beeper
connected to it by keeping beeping. This also implies some defects, such as
bad sector(s), may reside in the device, and you should do something about
it. Also, you need to reset the counter by choosing Yes to clear all log data
and resume the logging function. Note that the log data is stored in the
EEPROM of the DC-820B and not able to be erased by turning the power
off. Since this log utility cannot sense the SCSI ID change among your
devices, you have to take care of the SCSI ID consistency regarding to each
device for correct logging.