Seagate ST3300955FC, ST3400755FC manual Standard features, Media description

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.

8 Cheetah NS FC Product Manual, Rev. B