30.06.2014 Views

Barracuda 18LP Family: ST39175LW/LC ST318275LW ... - Seagate

Barracuda 18LP Family: ST39175LW/LC ST318275LW ... - Seagate

Barracuda 18LP Family: ST39175LW/LC ST318275LW ... - Seagate

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

50 <strong>Barracuda</strong> <strong>18LP</strong> Product Manual, Rev. E<br />

9.4 SCSI bus conditions and miscellaneous features supported<br />

Asynchronous SCSI bus conditions supported by the drive are listed below. These conditions cause the SCSI<br />

device to perform certain actions and can alter the SCSI bus phase sequence. Other miscellaneous operating<br />

features supported are also listed here. Refer to the SCSI Interface Product Manual, part number 77738479,<br />

for details.<br />

Table 10:<br />

SCSI bus conditions and other miscellaneous features<br />

Supported<br />

Conditions or feature<br />

Y<br />

68 and 80 pin interface connectors<br />

Y<br />

1 Mbyte data buffer<br />

N<br />

Active termination disabled via jumper<br />

Y<br />

Terminator power from drive power connector and to SCSI bus option<br />

Y<br />

Terminator power from drive power connector option<br />

Y<br />

Terminator power from SCSI bus pin 26 option<br />

Y Terminator power from SCSI I/O cable pin 26<br />

N<br />

Active termination enabled<br />

N<br />

Adaptive caching<br />

Y<br />

Adaptive read look-ahead<br />

Y<br />

Arbitrating system<br />

Y<br />

ASYNC burst rate of 5 Mbytes/sec.—single-ended<br />

Y<br />

Asynchronous data transfer<br />

N<br />

Asynchronous event notification<br />

Y<br />

Attention condition<br />

Y (not implemented) Audio video recovery scheme<br />

N<br />

Automatic adaptive cache (customer unique option)<br />

Y<br />

Capacity programming<br />

Y<br />

Command overhead less than 500 USEC, typ.<br />

Y<br />

Contingent allegiance condition<br />

Y<br />

Deferred error handling<br />

Y<br />

Delayed motor start<br />

Y<br />

Differential interface circuits available<br />

Y<br />

Disconnect/reconnect<br />

Y<br />

Embedded servo<br />

Y<br />

Fast SCSI, 10 Mbytes/sec.<br />

Y<br />

Firmware downloadable via SCSI interface<br />

Y<br />

Flag and link bits in control byte supported<br />

Y<br />

Format progress indication<br />

Y<br />

Full automatic read and write reallocation<br />

Y<br />

Hot plugging, with bus active<br />

Y<br />

Immediate status on Format Unit command<br />

Y<br />

Immediate status on Start/Stop command<br />

Y<br />

Immediate status on Synchronize cache<br />

Y<br />

Linked commands—customer unique options<br />

Y<br />

Low voltage differential SCSI<br />

Y<br />

Motor start enable<br />

Y<br />

Multi-initiator<br />

Y<br />

Multi-mode drivers/receivers (single-ended/differential)<br />

Y<br />

Parameter rounding

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!