3.1Standard features

Cheetah NS FC drives have the following standard features:

Perpendicular recording technology

4-Gbit Fibre Channel interface

Integrated dual port FC-AL controller

Concurrent dual port transfers

Support for FC arbitrated loop, private and public attachment

Differential copper FC drivers and receivers

Downloadable firmware using the FC-AL interface

Supports SCSI enclosure services via interface connector

128-deep task set (queue)

Supports up to 32 initiators

Drive selection ID and configuration options are set on the FC-AL backpanel or through interface com- mands. Jumpers are not used on the drive.

Supports SCSI Enclosure Services through the interface connector

Fibre Channel worldwide name uniquely identifies the drive and each port

User-selectable logical block size (512, 520, 524, or 528 bytes per logical block)

Selectable frame sizes from 256 to 2,112 bytes

Industry standard 3.5-inch low profile form factor dimensions

Programmable logical block reallocation scheme

Flawed logical block reallocation at format time

Programmable auto write and read reallocation

Reed-Solomon error correction code

Sealed head and disc assembly (HDA)

No preventive maintenance or adjustments required

Dedicated head landing zone

Embedded servo design

Automatic shipping lock

Self-diagnostics performed when power is applied to the drive

Zone bit recording (ZBR)

Vertical, horizontal, or top down mounting

Dynamic spindle brake

16 Mbyte data buffer (see Section 4.5).

Reallocation of defects on command (Post Format)

3.2Media description

The media used on the drive has an aluminum substrate coated with a thin film magnetic material, overcoated with a proprietary protective layer for improved durability and environmental protection.

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Cheetah NS FC Product Manual, Rev. A

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Seagate ST3300955FC, ST3400755FC manual Standard features, Media description