Fujitsu MBA3073NP User Manual download pdf (Page 18)

1.1 Standard Features

(1) Compactness

Since the SCSI controller circuit is embedded in the standard 3.5-inch hard disk drive form factor,

the HDD is extremely compact. The HDD can be connected directly to the SCSI bus of the host

system.

(2) Environmental Protection

The HDDs comply with the Restriction of the use of certain Hazardous Substances in electrical

and electronic equipment (RoHS) directive issued by European Union (EU).

(3) SCSI standard

The HDD provides not only SCSI basic functions but also the following features:

• Arbitration

• Disconnection/Reconnection

• Data bus parity

The SCSI commands can manipulate data through logical block addressing regardless of the

physical characteristics of the HDD. This allows software to accommodate future expansion of

system functions.

(4) 8-bit SCSI/16-bit SCSI

The HDD has 16-bit data bus width (16-bit SCSI), which have the wide transfer function suitable

for SCSI-2. 8-bit data bus is available only with NP model.

See subsection 5.3.2 for details of the bus width setting.

For the ultra SCSI model, number of connectable SCSI devices on the same SCSI bus is varied as

follows.

• 8-bit SCSI: 8 drives max. (option for NP model)

• 16-bit SCSI: 16 drives max.

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Fujitsu MBA3073NP User Manual Page 18