Miscellaneous Operating Features And Conditions; Sas Physical Interface - Seagate Constellation ST4000NM0023 Product Manual

11.4 M
ISCELLANEOUS OPERATING FEATURES AND CONDITIONS
Table 15 lists various features and conditions. A "Y" in the support column indicates the feature or condition is supported. An "N" in the
support column indicates the feature or condition is not supported.
Table 15 Miscellaneous features
Supported Feature or condition
N Automatic contingent allegiance
N Asynchronous event notification
N Synchronized (locked) spindle operation
Y Segmented caching
N Zero latency read
Y Queue tagging (up to 64 queue tags supported)
Y Deferred error handling
Y Parameter rounding (controlled by Round bit in Mode Select page 0)
Y Reporting actual retry count in Extended Sense bytes 15, 16, and 17
N Adaptive caching
Y SMP = 1 in Mode Select command needed to save RPL and rotational offset bytes
Table 16 Miscellaneous status
Supported Status
Y Good
Y Check condition
Y Condition met/good
Y Busy
Y Intermediate/good
Y Intermediate/condition met/good
Y Reservation conflict
Y Task set full
N ACA active
N ACA active, faulted initiator
11.4.1

SAS physical interface

Figure 19 shows the location of the SAS device connector J1. Figures 20 and 21 provide the dimensions of the SAS connector.
Details of the physical, electrical, and logical characteristics are provided within this section. The operational aspects of Seagate's SAS
drives are provided in the SAS Interface Manual.
Figure 19. Physical interface
C ES.3 SAS P
ONSTELLATION
M , R . C
RODUCT ANUAL EV
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