Seagate ST336607FC, ST3146807FC Standard features, Media description, Performance, Reliability

6 Cheetah 10K.6 FC Product Manual, Rev. B

3.1Standard features

Cheetah 10K.6 FC drives have the following standard features:

•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.

•Fibre Channel worldwide name uniquely identifies the drive and each port

•User-selectable logical block size (512 to 528 bytes per logical block) in even numbers of blocks

•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

•Automatic shipping lock

•Embedded Grey Code track address and servo wedge address to eliminate seek errors

•Self-diagnostics performed at power on

•1:1 interleave

•Zone bit recording (ZBR)

•Vertical, horizontal, or top down mounting

•Dynamic spindle brake

•8,192 Kbyte data buffer. See Section 4.5.

•Embedded servo design

•Reallocation of defects on command (Post Format)

•Fibre Channel interface transports SCSI protocol

3.2Media description

The media used on the drive has a diameter of approximately 84 mm (approximately 3.3 inches). The alumi- num substrate is coated with a thin film magnetic material, overcoated with a proprietary protective layer for improved durability and environmental protection.

3.3Performance

•Programmable multi-segmentable cache buffer

•200 Mbytes/sec maximum instantaneous data transfers per port

•10K RPM spindle; average latency = 2.99 msec

•Command queuing of up to 128 commands

•Background processing of queue

•Supports start and stop commands

•Adaptive seek velocity; improved seek performance

3.4Reliability

•1,200,000 hour MTBF

•LSI circuitry

•Balanced low mass rotary voice coil actuator