Service Action Codes; Understanding Service Action Codes And Modifiers - Quantum Scalar 10K User Manual

Service Action Codes

September 2007
This section contains information on SACs and is organized as
follows:
• Understanding Service Action Codes and Modifiers on page 6-
11
• Service Action Code Table on page 6-15
Understanding Service Action Codes
and Modifiers
SACs are used to help define the cause of the problem. If a
failure occurs that requires operator intervention and/or a
service call, a SAC is generated and displayed on the operator
panel. A SAC is the result of the Scalar 10K firmware
analyzing all pertinent system information available at the
time of a failure, such as sense data, the operation in progress,
error and threshold data, and any data returned from
diagnostic routines invoked by the firmware to isolate the
failure.
When a SAC is displayed on the operator panel, make sure to
write down all of the SAC information displayed, including
the 10-character code (for example, 0x02110000) that follows
the SAC. This information can be used to help diagnose the
problem.
Each SAC consists of three bytes (nn xx yy) or four bytes
(nn xx yy z) as described below:
• nn: SAC.
• xx yy z: SAC modifier. For most SACs, the modifier has a
value of 00 00 but for some SACs, this value is used to
further identify the physical location of the failing FRU or
component as described for xx yy. The additional z byte is
the single digit character error code displayed by tape
drives. The z byte provides tape drive information that
may or may not be useful in determining the problem.
• xx is the rack where the failing FRU or component is
located. xx has value ranging from 01 to 16:
•
•
• yy has a number of values depending on the SAC:
•
00: do not care condition
01-16: rack number from 1 to 16
00: do not care condition

Service Action Codes

6-11