Seagate ST15150DC, Product Manual

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66 ST15150N/ND/W/WD/WC/DC Product Manual, Rev. D
11.4 SCSI bus conditions
and miscellaneous features supported
Asynchronous SCSI bus conditions supported by the drive are listed in Table
11. These conditions cause the SCSI device to perform certain actions and
can alter the phase sequence. Other miscellaneous operating features
supported are also listed here.
Table 11. SCSI bus conditions and other miscellaneous features
Supported by
ASA I
ASA I ASA II
Conditions or feature SCSI-1 SCSI-2 SCSI-2
Adaptive caching N N N
Arbitrating system Y Y Y
Asynchronous data transfer Y Y Y
Asynchronous event notification N N N
Attention condition Y Y Y
Contingent allegiance condition N Y Y
Deferred error handling N Y Y
Differential interface circuits available Y Y Y
Disconnect/reconnect Y Y Y
Parameter rounding Y Y Y
(controlled by round bit in Mode Select page 0)
Queue tagging (up to 64 queue tags supported) N Y Y
Reporting actual retry count N Y Y
in extended sense bytes 15,16, and 17
Reset condition Y Y Y
Segmented caching Y Y Y
SMP = 1 in Mode Select command needed to save Y Y Y
RPL and rotational offset bytes (in Table 5.2.1-25
of SCSI-2 Interface Product Manual, Vol. 2).
Synchronized (locked) spindle operation Y Y Y
Synchronous data transfer Y Y Y
Zero latency read N N N
ASA I ASAI ASAII
Status supported SCSI-1 SCSI-2 SCSI-2
Busy Y Y Y
Check condition Y Y Y
Condition met/good Y Y Y
Good Y Y Y
Intermediate/condition met/good Y Y Y
Intermediate/good Y Y Y
Queue full Y Y Y
Reservation conflict Y Y Y