Barracuda 18LP Family: ST39175LW/LC ST318275LW ... - Seagate
Barracuda 18LP Family: ST39175LW/LC ST318275LW ... - Seagate
Barracuda 18LP Family: ST39175LW/LC ST318275LW ... - Seagate
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<strong>Barracuda</strong> <strong>18LP</strong> Product Manual, Rev. E 41<br />
9.0 Interface requirements<br />
9.1 General description<br />
This section describes in essentially general terms the interface requirements supported by the <strong>Barracuda</strong><br />
<strong>18LP</strong>. No attempt is made to describe all of the minute details of conditions and constraints that must be considered<br />
by designers when designing a system in which this family of drives can properly operate. <strong>Seagate</strong><br />
declares that the drives operate in accordance with the appropriate ANSI Standards referenced in various<br />
places herein, with exceptions as noted herein or in the <strong>Seagate</strong> SCSI Interface Product Manual, part number<br />
77738479.<br />
9.2 SCSI interface messages supported<br />
Table 5 lists the messages supported by the SCSI-2 and SCSI-3 modes of the <strong>Barracuda</strong> <strong>18LP</strong> family drives.<br />
Table 5:<br />
SCSI messages supported by <strong>Barracuda</strong> <strong>18LP</strong> family drives<br />
Message name<br />
Message code<br />
Supported by<br />
<strong>Barracuda</strong> <strong>18LP</strong><br />
Abort 06h Y<br />
Abort-tag 0Dh Y<br />
Bus device reset 0Ch Y<br />
Clear queue 0Eh Y<br />
Command complete 00h Y<br />
Continue I/O process 12h Y<br />
Disconnect 04h Y<br />
Extended messages 01h[1] Y<br />
Identify 80h-FFh Y<br />
Ignore wide residue (two bytes) 23h Y<br />
Initiate recovery 0Fh N<br />
Initiator detected error 05h Y<br />
Linked command complete 0Ah Y<br />
Linked command complete with flag 0Bh Y<br />
Message parity error 09h Y<br />
Message reject 07h Y<br />
Modify data pointer [1] N<br />
No operation 08h Y<br />
Queue tag messages (two bytes)<br />
Head of queue tag 21h Y<br />
Ordered queue tag 22h Y<br />
Simple queue tag 20h Y<br />
Release recovery 10h N<br />
Restore pointers 03h Y<br />
Save data pointer 02h Y<br />
Synchronous data transfer req. [1] Y<br />
Target transfer disable 13h Y<br />
Terminate I/O process 11h N<br />
Wide data transfer request [1] Y<br />
Notes.<br />
[1] Extended messages (see the SCSI Interface Product Manual, part number 77738479).