When a failure occurs, the Scalar 100 firmware performs error recovery and reporting. Error reporting
includes Service Action Codes (SACs), operator intervention messages, and operator information
messages. All of these messages are discussed and explained here.
Service Action Codes
If a failure requires operator service, a two-byte Service Action Code (SACs) is generated and displayed on
the operator panel. These codes indicate a specific task that should be taken.
the recommended actions.
The two-byte SAC definition is generated as follows:
•
nn represents the Service Action Code
•
xx represents the modifier to the Service Action Code
•
00 represents the main controller
•
10 represents the picker controller
•
20 represents the display assembly
•
3x represents the drive module
•
x represents the drive ID
•
40 represents SCSI controller
•
50 represents Remote Management Unit (RMU)
Table 8
Service Action Code Descriptions
Reported
Error and Solution
SAC
Type 1 software errors including microcode and operating system errors.
Error also due to communication time-out with the drive.
01 xx
Power off and on the Scalar 100 library to recover from the error. Use the rear
switch to perform this action, wait at least one minute between power off and
on.
Scalar 100 User's Guide
Troubleshooting and Help
Table 8
lists each SAC and
97