SCSI - Computer Busses - page 165

b 7 b 6 b 5 b 4 b 3 b 2 b 1 b 0

Reserved

Reserved Status byte code

Figure 7.4 Status field

Table 7.8 Status byte codes

Bit values of status byte Status Description

7 6 5 4 3 2 1 0

R R 0 0 0 0 0 R Good Indicates that the target has successfully completed the

command.

R R 0 0 0 0 1 R Check
condition

Indicates that a contingent allegiance condition has oc-
curred.

R R 0 0 0 1 0 R Condition met This status or INTERMEDIATE-CONDITION MET is

returned whenever the requested operation is satisfied.

R R 0 0 1 0 0 R Busy Indicates that the target is busy. This status shall be re-

turned whenever a target is unable to accept a command
from an otherwise acceptable initiator (that is, no reserva-
tion conflicts).

R R 0 1 0 0 0 R Immediate This status or INTERMEDIATE-CONDITION MET

shall be returned for every successfully completed com-
mand in a series of linked commands (except the last
command).

R R 0 1 0 1 0 R Immediate-
condition met

This status is the combination of the CONDITION MET
and INTERMEDIATE status's.

R R 0 1 1 0 0 R Reservation
conflict

This status occurs whenever an initiator attempts to ac-
cess a logical unit that is reserved with a conflicting res-
ervation type for another SCSI device.

R R 1 0 0 0 1 R Command
conflict

This status occurs whenever the target terminates the
current I/O process after receiving a TERMINATE I/O
PROCESS message.

R R 1 0 1 0 0 R Queue full This status shall be implemented if tagged queuing is

implemented.

R R R R R R R R Reserved