Cheetah 73 Installation Guide

Model ST173404LW/LC/LWV/LCV, SCSI interface disc drive

Publication Number: 83329479, Rev. A, December 1999

Handling precautions/electrostatic discharge protection

Some systems provide a cable designed to connect to the J5 jumper block on the drive to remotely set the ID. You can connect this cable to J5 and use the host-provided remote switch to set the SCSI ID.

Disc drives are fragile. Do not drop or jar the drive and 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 circuit board or drive top.

Electromagnetic compliance

See Safety and Regulatory Agency Specifications, p/n 75789512.

Drive characteristics

Formatted capacity

73.4 Gbytes

Max. data blocks

143,374,738 (088BB992h)

Cylinders and heads (user accessible)

14,100 / 24 heads

Disc rotation

10,033 rpm

Drive

Front

Jumper Plug (enlarged to show detail)

J6

 

 

 

 

 

Pin 1

 

 

 

 

 

 

Reserved

L

R

 

A

 

A A

E

E A

3

2

 

D

S

 

1 0

SCSI ID = 0

 

 

 

 

 

(default)

SCSI ID = 1

SCSI ID = 2

SCSI ID = 3

SCSI ID = 4

SCSI ID = 5

SCSI ID = 6

SCSI ID = 7

SCSI ID = 8

SCSI ID = 9

SCSI ID = 10

SCSI ID = 11

SCSI ID = 12

SCSI ID = 13

SCSI ID = 14

SCSI ID = 15

 

 

 

Drive HDA

 

 

 

 

Rear

68 Pin

 

J5

 

SCSI I/O

+5V

J1

Connector

Pin 1 Ground

Pin 1 DC Power

 

 

4P

3P 2P

1P

J1

 

 

 

 

SCSI ID = 0

 

(default)

PCBA

SCSI ID = 1

 

 

 

SCSI ID = 2

SCSI ID = 3

SCSI ID = 4

SCSI ID = 5

SCSI ID = 6

SCSI ID = 7

SCSI ID = 8

SCSI ID = 9

SCSI ID = 10

SCSI ID = 11

SCSI ID = 12

SCSI ID = 13

SCSI ID = 14

SCSI ID = 15

not used A3 A2 A1A0

Operating voltages

+5V

+12V

Typical operating current

0.87A

1.5A

What you need

Phillips screwdriver and four 6-32 UNC drive mounting screws

Forced-air ventilation to provide adequate drive cooling

An unused drive power connector (not applicable to LC/LCV models)

To operate at LVD transfer rates, you may also need an LVD-capable SCSI host adapter, LVD I/O cable and active negation external terminator

Multimode interface

This drive can operate in single-ended (SE) or low voltage differential (LVD) mode. This multimode capability provides backwards compatibility so you can use it with or without an LVD-capable host adapter. The primary bene- fits of LVD technology include faster transfer rates, reduced power con- sumption, increased allowable cable lengths, and improved device connectivity.

You can configure the drive to switch between SE and LVD modes automat- ically or force it to operate in SE mode only. To configure this option, see Figure 2.

Note. To operate at the Ultra2 rates in LVD mode, all devices on the same bus (cable) must be running in LVD mode. If you add any SE device to the bus, all devices on that bus operate in SE mode.

Note. Some LVD host adapters provide an LVD connector and an SE con- nector on the same host adapter to allow you to run SE and LVD drives concurrently at their maximum capabilities. Check your SCSI host adapter documentation. See Figure 3.

Caution. Do not mix LVD drives on the same bus with high voltage differen- tial (HVD) devices–drive damage may occur.

Installation instructions

1. Set the SCSI ID

Determine which SCSI IDs are already being used in the system and then assign this disc drive a SCSI ID that isn’t already being used. Use the J6 connector located on the front of the drive to set the SCSI ID (see Figure 1).

Most ST173404 drives are factory set with the SCSI ID set at 0. If this is the only SCSI drive in your system and there are no other SCSI devices on the daisychain, you can leave this drive’s SCSI ID set to 0 and pro- ceed to the next step.

The host system’s SCSI controller usually uses SCSI ID 7.

If you have an LC or LCV model drive, the host normally sets the ID over the I/O interface, so you don’t need to worry about this step.

Figure 1. Setting the SCSI ID

2. Configure termination

If you are installing the drive in a system that has other SCSI devices installed, terminate only the end devices on the SCSI bus (cable). This drive does not have internal terminators or any other way of adding internal termi- nation on the drive. You must provide external termination when termination is required. This is normally done by adding an inline terminator on the end of the cable. See Figure 3 for an illustration showing a system configuration that uses an external terminator.

Use active (ANSI SCSI-2 Alternative 2) single-ended terminators when terminating a bus operating in single-ended mode.

Use SPI-2-compliant active low voltage differential terminators when ter- minating a SCSI Ultra2 bus operating in LVD mode.

The host adapter is normally on the end of the bus and internally termi- nated. You can configure your bus with another device on the end if you remove termination from the host adapter.

3. Configure terminator power

Terminators have to get power from some source. The default configuration results in the drive not supplying termination power to the bus. You should normally leave this drive set at this default unless your host system requires the drive to supply termination power to the bus. To configure this drive to supply termination power to the bus, place a jumper on J2 pins 1 and 2 as shown in Figure 2.

Host systems designed to use LC and LCV drives normally provide termi- nation power from the host adapter or other source. For this reason, LC and LCV model drives cannot be configured to provide termination power to the bus.

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Seagate ST173404LC installation instructions Model ST173404LW/LC/LWV/LCV, Scsi interface disc drive, Drive characteristics

ST173404LC, ST173404LWV, ST173404LW, ST173404LCV specifications

The Seagate ST173404LCV, ST173404LW, ST173404LWV, and ST173404LC are hard disk drives designed for enterprise and high-performance server applications. These drives are notable for their advanced features, high storage capacities, and reliability, making them suitable for data-intensive operations in various industrial settings.

One of the main features of these Seagate drives is their impressive storage capacity, with the ability to handle large volumes of data. The ST173404LCV and ST173404LW models provide substantial space, making them ideal for applications that require significant data storage, such as transaction processing, data warehousing, and cloud computing. Their 7,200 RPM rotational speed ensures that data access and retrieval times are minimized, resulting in improved overall system performance.

These drives utilize the SATA (Serial ATA) interface, which enables fast data transfer rates, compatible with modern motherboards and storage systems. The ST173404LW series, including the LW and LWV variants, is particularly designed for enhanced data security and integrity. Features such as error correction codes and data integrity checks ensure that the data stored is both reliable and accessible, reducing the risk of data loss due to corruption or failure.

In terms of technology, these drives leverage Seagate's advanced PowerChoice technology to optimize power consumption during idle periods, thus extending the lifespan of the hard disks while contributing to energy efficiency in data centers. The drives are also equipped with advanced thermal management capabilities, allowing them to perform reliably even under high-temperature environments, which is essential for enterprise applications.

The build quality of the ST173404 series is critical, with Seagate implementing rigorous testing processes and high-quality materials to enhance durability and reduce the probability of failure. This makes them a preferred choice for businesses that require continuous and stable operation, even under heavy workloads.

In summary, the Seagate ST173404LCV, ST173404LW, ST173404LWV, and ST173404LC hard disk drives are designed to meet the demanding needs of enterprise storage solutions with their large capacity, fast performance, and robust reliability. With the innovative technologies embedded within them, these drives represent a solid investment for companies looking to enhance their data management capabilities.