Chapter 5 Troubleshooting
Power-on Self Test (POST)
Quantum SuperLoader 3A Series User’s Guide
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Power-on Self Test (POST)
This section describes the POST and its various tests and also explains
how to perform diagnostic tests from the front panel and from the On-
board Remote Management interface.
The Power-on Self Test (POST) and diagnostic tests are helpful tools for
testing the autoloader’s functionality and for troubleshooting errors.
With the results from the POST and diagnostic tests, you can determine
how well the autoloader is working and locate any problems
Every time you turn on the autoloader, the POST checks all of the
autoloader’s basic components. If you experience problems with the
autoloader, the POST is a good method to determine if any major parts
are malfunctioning.
.
The autoloader recognizes when the drive or autoloader is executing host
commands and will respond appropriately to prevent application
failures. A diagnostic command issued between host application
commands may not be recognized appropriately, resulting in a failed
application.
Table 11 POST Descriptions
Note:
Use of the
Diagnostic Commands
from the On-board Remote
Management interface should not be issued while the
autoloader is being used by host applications. Only use the
Diagnostics Commands
when the autoloader is known to be
idle and unavailable to host backup/restore applications.
POST Test
Description
MICROP
Tests the microprocessor’s general-purpose registers
IRAM
Tests the microprocessor’s internal RAM
Addr Lines
Bit walks the SRAM address lines
SRAM
Tests the 512k SRAM