Seagate Hawk 2 ST11900N, Product Manual

Page: 56 / 82

48 Product Manual - Hawk 2 Family SCSI-2 (Volume 1), Rev. B
_________________________________________________________________________________________
11.4 SCSI Bus Conditions and Miscellaneous Features Supported
Asynchronous SCSI bus conditions supported by the drive are listed in Table 11.4-1. These conditions cause the
SCSI device to perform certain actions and can alter the phase sequence. Other miscellaneous operating fea-
tures supported are also listed here.
Table 11.4-1. SCSI bus conditions and other misc. features
Condition/Feature Supported by:
SCSI-1 SCSI-2 Conditions or Feature
Y Y Attention Condition
Y Y Reset Condition
Y Y Contingent Allegiance Condition
N N Asynchronous Event Notification
Y Y Arbitrating System
Y Y Disconnect/Reconnect
Y Y Asynchronous Data Transfer
Y Y Synchronous Data Transfer
Y Y Synchronized (locked) Spindle Operation
Y Y Differential Interface Circuits available
Y Y Segmented Caching
N N Zero Latency Read
Y Y Queue tagging (up to 64 Que tags supported)
Y Y Deferred Error Handling
Y Y Parameter Rounding
Y Y Reporting actual retry count in Extended Sense bytes
15, 16 and 17.
Y Y Adaptive Caching (available only on some drives)
Y Y SMP = 1 in Mode Select command needed to save
RPL and Rotational Offset bytes (in Table 5.2.1-25
of Vol. II).
Y Y Immediate status for Start/Stop command
N N Immediate status for Format Unit and Synchronize
Cache commands
N N Format progress indication
[1] [1] Flag and Link bits in Control byte supported
SCSI-1 SCSI-2 Status Supported
Y Y Good
Y Y Check Condition
N N Condition Met/Good
Y Y Busy
[1] [1] Intermediate/Good
Y Y Intermediate/Condition Met/Good
Y Y Reservation Conflict
Y Y Queue Full
Notes.
[1] Option supported only if customer selected.