Technical information

HGST Ultrastar C15K600 Hard Disk Drive Specification
303
If the target receives a command from an initiator before reporting a CHECK CONDITION status for a pending unit
attention condition for that initiator, the target's response varies with the command as follows:
Inquiry
Execute the command, return GOOD status, and preserve the unit attention condition.
Report Luns
Same as above
Request Sense
Execute the command, return any pending sense data, return GOOD status, and preserve the
unit attention condition. If there is not any pending sense data, the sense data associated with
the highest priority unit attention condition is returned and the highest priority unit attention
condition is cleared for this initiator.
All Others
Do not execute the command, return a CHECK CONDITION status, clear the highest priority
unit attention condition for this initiator and return the associated sense data.
More than one unit attention condition may be generated for an initiator before that initiator
clears the unit attention condition.