2.2SCSI Function Specifications

Table 2.4 shows the SCSI functions provided with the HDD.

 

 

Table 2.4

SCSI function specifications

 

 

 

 

 

 

 

 

 

 

 

 

Item

 

 

 

 

Specification

 

 

 

 

 

 

 

 

Single-ended type

 

 

 

 

Ο

 

 

 

 

 

 

 

HVD type (High Voltage Differential)

 

 

 

 

 

 

 

 

Electrical

LVD type (Low Voltage Differential)

 

 

Ο

 

 

 

 

 

 

 

requirements

Single-ended type

Position where the terminating

 

 

(*1)

resistor is mounted on the PCA

 

 

 

 

 

 

 

 

Differential type

Position where the terminating

 

 

 

resistor is mounted on the PCA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TERMPWR signal send function

 

 

Ο (NP model)

 

 

 

 

 

 

Connector

68-pin P cable connector

 

 

 

Ο (NP model)

 

 

 

 

 

 

 

80-pin SCA2 connector

 

 

 

Ο (NC model)

 

 

 

 

 

 

 

 

 

 

 

Data bus parity (Data bus CRC)

 

 

 

 

Ο

 

 

 

 

 

 

 

Bus arbitration function

 

 

 

 

 

Ο

 

 

 

 

 

 

Disconnection/reconnection function

 

 

 

 

Ο

 

 

 

 

 

 

 

 

 

SCSI ID

16-bit SCSI

 

 

 

#0 to #15

Addressing

 

(Jumper selection, NP model)

 

 

 

 

 

LUN (logical unit number)

 

 

 

#0 fixed

 

 

 

 

 

8-bit SCSI (Single-ended type)

Ο

20 MB/s max.

Data transfer

 

(Ultra 2 type)

 

Ο

40 MB/s max.

16-bit SCSI (Single-ended type)

Ο

40 MB/s max.

(Synchronous

 

(Ultra 2 Wide type)

Ο

80 MB/s max.

mode) (*2)

 

 

(U160 LVD type)

 

Ο

160 MB/s max.

 

 

 

 

 

(U320 LVD type)

 

Ο

320 MB/s max.

Data buffer (*3)

 

 

 

 

 

8 MB

 

 

 

 

 

 

 

 

Data block length (Logical data length=Physical data length) (*4)

 

 

512 to 528 bytes

 

 

(Fixed length)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ο :

Provided

⋅ : Not provided

(*1) The driver mode (Single-ended or LVD) changes automatically by Diffsence signal level.

(*2) 1MB/s=1,000,000 bytes/s

(*3) 1MB=1,048,576 bytes

(*4) Refer to (13) of Section 1.1.

C141-E270

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Fujitsu MBA3147NC, MBA3073NP, MBA3073NC, MBA3300NP, MBA3300NC, MBA3147NP manual Shows the Scsi functions provided with the HDD