Cheetah 15K.3 FC Installation Guide

ST373453FC, ST336753FC and ST318753FC

Publication Number: 100148127, Rev. C, July 2002

Handling precautions/Electrostatic discharge protection

•Disc drives are fragile. Do not drop or jar the drive. Handle the drive only by the edges or frame.

•Drive electronics are extremely sensitive to static electricity. Keep the drive in its antistatic container until you are ready to install it. Wear a wrist strap and cable connected to ground. Discharge static from all items near or that will contact the drive. Never use an ohmmeter on any circuit boards.

•Turn off the power to the host system during installation.

•Always use forced-air ventilation when operating the drive.

•Use caution when troubleshooting a unit that has voltages present.

•Do not disassemble the drive; doing so voids the warranty.

•Return the entire drive for depot service if any part is defective.

•Do not apply pressure or attach labels to the circuit board or to the top of the drive.

Electromagnetic compliance

See the Safety and Regulatory Agency Specifications page, part number 75789512, which was shipped with this installation guide.

Drive characteristics

 

ST373453FC

ST336753FC

ST318753FC

Formatted capacity

73.4 Gbytes

36.7 Gbytes

18.4 Gbytes

Total # of data blocks

143,374,744

71,687,372

35,843,686

 

(88BB998h)

(445DCCCh)

(222EE66h)

Cylinders (user accessible) 31,310

 

31,310

 

31,310

 

Heads (user accessible)

8

 

4

 

2

 

Disc rotation +/– 5%

15,000 RPM

15,000 RPM

15,000 RPM

Operating voltages

+5V

+12V

+5V

+12V

+5V

+12V

Typical operating

 

 

 

 

 

 

current (amps)

1.05

1.15

1.02

0.97

1.02

0.86

What you need

•Screwdriver and four 6-32 UNC drive mounting screws

•Forced-air ventilation to provide adequate drive cooling

•Host system with Fibre Channel host adapter or backplane

Installation instructions

1. Mount the drive in the host system carrier or tray

Most Fibre Channel host systems (including enclosures) provide a way to insert the drive using a carrier or tray which allows the drive to be hot- plugged into the system’s Fibre Channel 40-pin single connector attach- ment (FC-SCA).

Mount the drive to the carrier or tray provided by the host system using four 6-32 UNC screws. Do not over-tighten or force the screws. You can mount the drive in any orientation. See Figure 1.

Note. FC drives are designed to be attached to the host system without I/O or power cables.

Figure 1. Sample drive carrier

2. Insert the drive

Slide the carrier or tray into the appropriate bay in your host system. This connects the drive directly to your system’s 40-pin Fibre Channel single connector attachment (FC-SCA). The FC-SCA connector is normally located on a Fibre Channel backpanel.

Note. There are no jumpers or terminators on the drive, and power is sup- plied through the 40-pin connector.

3. Connect LEDs (optional)

Note. This is an optional step. The drive will work fine without the LEDs connected to the drive.

The drive supplies pins that you can use to connect fault and active LEDs. This allows you to monitor drive fault conditions and activity. The actual LED is external to the drive.

Drive

Front

Pin 1

J6

Reserved

Port A Bypass LED [1]

Port B Bypass LED [1]

Fault LED [1]

Reserved

Active LED [2]

Reserved

+5V

Active LED [1]

Ground [3]

[1]The drive has a 2.2K ohm resistor in series with this LED driver. Tie the minus side of an external high-efficiency LED (i.e., 2ma) to this pin. Connect the plus side of the LED to +5V.

[2]An external current-limiting resistor is required when connecting an LED to this pin. The minus side of the resistor/LED combination is con- nected to this pin. Connect the plus side to +5V.

[3]Jumper storage location (across pins 2 and 4).

Figure 2. LED indicator connector

Fault LED Signal

The drive activates the fault LED Out signal when:

•the drive detects failure of both ports

•the drive detects an internal failure

•the drive receives the appropriate fault LED command from the host

Active LED signal

The drive activates the active LED signal as indicated below.

Normal command activity

LED status

Spun down and no activity

Slow blink (20% on and 80% off)

Spun down and activity

On

(command executing)

 

Spun up and no activity

On

Spun up and activity

Off

(command executing)

 

Spinning up or down

Blinks steadily (50% on and 50% off)

Format in progress

Toggles on/off

(each cylinder change)

 

Note. Figure 1 above shows a generic carrier. Most carriers will look differ- ent than the one shown. Many are actually small enclosures rather than brackets as shown here.

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Seagate installation instructions ST373453FC, ST336753FC and ST318753FC, Electromagnetic compliance, What you need
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ST318753FC, ST373453FC, ST336753FC specifications

The Seagate ST318753FC, ST373453FC, and ST336753FC are part of Seagate's Cheetah series of hard disk drives, specifically designed for enterprise storage solutions. These drives were built to meet the demanding requirements of critical data applications, including server environments and high-performance computing systems.

The ST318753FC is a 10,000 RPM SCSI drive that offers a storage capacity of 18.4 GB. It utilizes a SCSI interface, specifically the Fiber Channel protocol, which provides high-speed data transfer rates vital for applications needing swift read and write operations. The drive features 8 MB of cache, which enhances data retrieval speeds and overall performance. With its reliable build and advanced technologies, the ST318753FC is intended for situations where performance and reliability are critical.

Similarly, the ST373453FC enhances performance with a larger storage capacity of 73.4 GB while maintaining the same 10,000 RPM rotational speed. This model offers improved scalability, making it suitable for data-intensive environments. The drive also boasts advanced error correction technology, which minimizes data corruption and increases reliability, critical for enterprise use settings. The integration of dual-port Fiber Channel allows for quick data access, making it compatible with various storage area networks.

The ST336753FC is yet another powerful offering within this series, delivering a storage capacity of 36.7 GB. Like its counterparts, it operates at 10,000 RPM and incorporates a SCSI interface with Fiber Channel connectivity. Its design emphasizes durability and performance while ensuring low latency and high input/output operations per second (IOPS). The implemental features of the ST336753FC, including advanced drive diagnostics and support for hot-swapping, ensure that it adheres to contemporary enterprise storage requirements.

Overall, all three drives emphasize reliability, performance, and advanced technology, making them suitable for enterprise environments where uptime and efficiency are paramount. Their ability to deliver consistent performance, along with high data integrity, solidifies their status as essential components in enterprise storage architectures. With SCSI interface support, these drives cater to a diverse range of applications, ensuring that businesses can rely on high-performance solutions to store and manage their vital data.
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