User guide

SC3500 User Guide Ver 1.3 March 8, 2005 Page 27 of 28
8. TROUBLE SHOOTING GUIDE
The following is a list of possible error indicators or messages, what they indicate, and
possible solutions to the source problem. If no solution is found, contact the factory for
further assistance.
8.1 Error Blink Codes -
If the green LED issues a repeating blink code (accompanied by the drive not
responding to SCSI commands), this indicates a hard error condition as listed in the
table below. Contact the Memtech factory for repair service.
Number of
Blinks
Error
2 ROM Firmware Checksum error
3 ASIC initialization error
4 SRAM Test failed
5 Remap Table error
6 SCSI controller error
7 Flash/Data Path error
8.2 Warning Blink Codes –
The green LED is also used to indicate a number of warning conditions. If a warning
condition is encountered, the green LED will issue the number of rapid or warbling
blinks indicated below a single time, then continue the power-up procedure. Please
note that the warning condition is also entered after each SCSI reset, so the blink
code may be issued several times during power-up at irregular intervals.
Number of
Blinks
Error
1 No Flash memory
2 Invalid Remap Table
3 Remap Table disabled
8.3 Red LED on steady at power-up-
The red LED will come on when the remap table becomes full. One or more memory
devices have exceeded their useful life. Contact Memtech repair department for repair
or upgrade options.
8.4 Unit does not respond to SCSI commands -
If the unit passes power-up diagnostics, but does not respond to SCSI commands,
there may be a SCSI ID contention among the SCSI bus units. Make sure that every
SCSI ID used on the bus is different. See section 5 to find out how to change the
SCSI ID of the unit.