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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

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Seagate ST336607FC, ST3146807FC, ST373307FC manual Standard features, Media description, Performance, Reliability

ST336607FC, ST373307FC, ST3146807FC specifications

The Seagate ST373307FC, ST3146807FC, and ST336607FC are robust hard disk drives designed for enterprise environments where reliability and performance are critical. Each model offers distinct features suited to various data storage needs, reflecting Seagate's commitment to innovation in storage technology.

The ST373307FC is a 73GB Fibre Channel hard drive that operates at 15,000 RPM, making it exceptionally fast for read and write operations. This drive employs a 4GB cache, enhancing its performance by allowing quicker access to frequently used data. With a 3.5-inch form factor, the ST373307FC is built for high-density environments, delivering reliable access to data. Its Fibre Channel interface supports high-speed connections, essential for data-intensive applications like databases and virtualization.

Next in line, the ST3146807FC offers a capacity of 146GB, also operating at 15,000 RPM. This drive features an 8GB cache, which significantly improves its data transfer rates, making it ideal for transactional workloads. The ST3146807FC is engineered to minimize latency and maximize throughput, ensuring that enterprises can access critical data swiftly and efficiently. Additionally, its rugged construction is designed to withstand the demands of continuous operation, providing peace of mind for businesses with strict uptime requirements.

Lastly, the ST336607FC has a substantial storage capacity of 300GB and shares the 15,000 RPM operational speed that characterizes this high-performance line. With a similar 8GB cache as the ST3146807FC, it offers excellent performance for read-intensive and write-heavy applications. The ST336607FC is also designed with enhanced thermal management features, supporting cooler operations in densely packed server environments. This model is particularly suited for applications such as data warehousing and online transaction processing, where speed and reliability are paramount.

Each of these drives utilizes advanced technologies like Native Command Queuing (NCQ), which optimizes the order of read and write requests. These features, combined with Seagate's reputation for durability and performance, make the ST373307FC, ST3146807FC, and ST336607FC excellent choices for enterprise applications requiring high-speed data access and exceptional reliability. In environments where data integrity and uptime are critical, these drives provide the robust performance necessary to meet demanding storage needs.