Seagate ST318452LC Manual download pdf (Page 53)

Cheetah X15 36LP Product Manual, Rev. D 43

9.0 Interface requirements

This section partially describes the interface requirements as implemented on the drives.

9.1 General description

This section describes in essentially general terms the interface requirements supported by the Cheetah X15

36LP. No attempt is made to describe all of the minute details of conditions and constraints that must be con-

sidered by designers when designing a system in which this family of drives can properly operate. Seagate

declares that the drives operate in accordance with the appropriate ANSI Standards referenced in various

places herein, with exceptions as noted herein or in the Seagate SCSI Interface Product Manual.

9.2 SCSI interface messages supported

Table 5 lists the messages supported by Cheetah X15 36LP family drives.

Table 5: SCSI messages supported by Cheetah X15 36LP family drives

Message name Message code

Supported by

ST336752 and

ST318452 models

Supported by

ST336732 and

ST318432 models

Abort 06h Y Y

Abort-tag 0Dh Y Y

Bus device reset 0Ch Y Y

Clear ACA 16h N N

Clear queue 0Eh Y Y

Command complete 00h Y Y

Continue I/O process 12h N N

Disconnect 04h Y Y

Extended messages 01h[1] Y Y

Identify 80h-FFh Y Y

Ignore wide residue (two bytes) 23h Y Y

Initiate recovery 0Fh N N

Initiator detected error 05h Y Y

Linked command complete 0Ah Y Y

Linked command complete with flag 0Bh Y Y

Message parity error 09h Y Y

Message reject 07h Y Y

Modify data pointer [1] N N

No operation 08h Y Y

Parallel Protocol Request Y [1] [2] Y

Queue tag messages (two bytes)

ACA 24h N N

Head of queue tag 21h Y Y

Ordered queue tag 22h Y Y

Simple queue tag 20h Y Y

Quick Arbitration and Selection (QAS) 55h N Y

Release recovery 10h N N

Restore pointers 03h Y Y

Save data pointer 02h Y Y

Synchronous data transfer req. [1] Y Y

Target transfer disable 13h N N

Terminate I/O process 11h N N

Wide data transfer request [1] Y Y

1 2 ... 48 49 50 51 52 53 54 55 56 57 58 ... 93 94

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