Fujitsu MBA3300RC Sense Data Hold State, Unit Attention condition multiple hold, Inquiry command

2.5 Sense Data Hold State

(2) INQUIRY command

The INQUIRY command is executed normally, but the Unit Attention condition is not cleared.

(3) REQUEST SENSE command

The HDD executes the REQUEST SENSE command normally, and sends the sense data which show the Unit Attention condition which is currently being held to the INIT. At this time, the Unit Attention condition with respect to that INIT is cleared.

(4) REPORT LUNS command

The REPORT LUN command is executed normally, but the Unit Attention condition is not cleared.

2.4.3 UNIT ATTENTION condition multiple hold

If any Unit Attention condition occurs and another Unit Attention condition occurs which is caused by other factors before the first Unit Attention condition is cleared by the INIT for which that condition is held, those multiple Unit Attention conditions are held and the HDD reports multiple unit attention conditions in sequence.

2.5 Sense Data Hold State

If the status is the Check Condition status when the status is reported, this HDD adds that sense data to the response frame and notifies the INIT of it.

Therefore, the sense data hold state does not occur and the CA status does not occur.

The function which reports sense data automatically is called the Auto Sense function.

This HDD operates with the Auto Sense function activated at all times and this function cannot be deactivated. Also, since this HDD does not support ACA, it does not enter the ACA state.

C141-C013 113