Fujitsu MBA3073 SERIES Technical Manual page 198

The retry count for the timeout of RESELECTION phase can be set by the CHANGE
DEFINITION command. For details, see Section 1.6.11.
(8) Errors concerning message protocol
If the HDD detects an ATTENTION condition in the SELECTION phase and it receives the
message except for the following messages from the INIT in its response to the ATTENTION
condition (the MESSAGE OUT phase), the HDD considers it as an error in the message protocol
and enters the BUS FREE phase immediately.
•
IDENTIFY
•
ABORT TASK
•
TARGET REST
(9) Internal controller error
If a hardware or firmware error inside of the HDD is detected and if the LUN is already identified,
the HDD abnormally terminates the currently executing command in the CHECK CONDITION
status. In such case, the HDD generates the sense data which indicates the "HARDWARE
ERROR [=4]/Internal target failure [=44-nn]" sense key/sense code. If the LUN is not identified
yet, the HDD does not generate the sense data but enters the BUS FREE phase immediately.
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