Seagate ST173404FC User Manual

Cheetah 73FC Installation Guide

Model ST173404FC/FCV, Fibre Channel interfa ce disc drive

Publi cation Number: 83329483, Rev. B, March 2000

Handling precauti ons/Electrostatic discharge protection

• Disc dri ves are fragi le. Do not dr op or jar th e drive and ha ndle t he 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 t o 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 capa c ity .. .... .... ........... .... .... .... ...73.4 Gbytes

Max. data blocks .......................................142,265,919 (087ACE3Fh)

Cylinders and heads (user accessible) ......14,100 / 24 heads

Disc rotation ...............................................10,033 rpm

Operating v oltages +5V +12V

Typical operating current .........................0.92A 1.5A

What you need

• Phillips 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 Fib re Channe l host syste ms (incl uding enc losures ) provide a way to
inser t the drive using a carrier or tray wh ich allows th e drive to be hot­plugge d into the sys tem’s Fibre Cha nnel 40-pin single connector at tach­ment (FC-SCA).

Mount the drive to the carrier or tray provided by the host system using four
6-32 UNC screws. Two mounting holes are in each side of the drive and
there are four mounting hole s in the bottom of the drive. Do not over-tighten
or force th e s c r ews. You can mo un t th e drive in any orien tation. S e e F igure
Figure 1.

FC and FCV d rives are desi gned to be att ache d t o the h ost s yst em

Note.

without I/O or power cables.

2. Insert the drive

Slide th e ca rrier or tray in to th e approp ria te bay in yo ur ho st sys tem. 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 back panel.

There are no jumpers or terminators on the drive, and power is sup-

Note.

plied through the 40-pin connector.

3. Connect LE Ds (optional)

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

Note.

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 dri ve.

Drive
Front

J6

Reserved

Port A Bypass LED [1]
Port B Bypass LED [1]
Fault LED [1]
Reserved
Active LED [2]
+5V
Active LED [1]
Ground [3]

Pin 1

[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 plu s side of the LED to +5 V.

[2] An external current-limiting resistor is required when connecting an

LED to t his pin. Th e m inu s side o f th e r e s is t or /L E D co mb inatio n is c on ­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 Ou t signal when:

• the drive de tects f ailure 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

(comm an d execut ing )

Spun up and no activity.................. On

Spun up and activity ....................... Off

(comm an d execut ing )

Spinning up or down....................... Blinks steadily (50% on and 50% off)

Format in progress ......................... Toggles on/off

(each cy li nder chan ge )

Figure 1. Sample drive carrier

Figure 1 above shows a generic carrier. Most carriers will look differ-

Note.

ent than the o ne shown. Many a re act ually s mall e nclosu res rat her
than brackets as shown here.

4. Format the drive

The drive has been low level formatted at the factory. You do not need to
perform another low level format on this drive unless you decide to perform
certain diagnostics through the host adapter. If you do decide to perform a
low level form at, do no t abor t th e format as thi s is like ly to make the d rive
inoperabl e. A low level for mat, w ith verify tur ned on, w ill typ ically take four
hours.

Protect again s t power failure or other power interruptions during the f ormat.
a. T urn on DC power to the host system.
b. Boot the system from a system floppy, CD, or from a previously installed

hard disc drive if there is one.

c. Format the drive.

Caution.

Formatt ing a dr ive eras es all us er data. Be sure t hat you un der­stand t his pr in ciple b efor e formatti ng any h ard dis c dr ive. I t is no t
necessary to format a drive that previously has been used to
store data, unless your intention is to erase all user data. S eagate
is not responsible for lost user data.

Cheetah disc dr ives a re designed to operate with a variety of operating sys­tems. Please refer to your system or Fibre Channel host adapter (controller)
manual for information about formatting and setting up the drive for use with
your particular operating system.

Hot plugging the drive

This drive features hot plugging capabilities which allows you to insert and
remove the drive without powering down the host system. Any time a drive
is inserte d or r emoved fr om a F ib re Chan nel lo op, a sh ort loop in terrupti on
occurs and the loop resynchronizes automatically to accommodate the
added (or rem oved ) dri ve.

Drive startup options

The drive’s motor will start spinning the discs based on the status of two sig­nals set by the host adapter. These two signals are called Start_1 and
Start_2. There are four options as described belo w.

Option Start_2 Start_1 Motor spin function

1........... Low .......Low ........Motor spins up at DC power on.

2 . .......... High ...... Low ........ M otor spins up wh en the host adap ter sends

the SCSI Start command.

3 ........... Low ....... High........ Motor spins up after a delay of 12 seconds

times the physical address of the drive.

4........... High ......High........ The drive will not spin up.

Most systems that host only a couple of drives use option 1 to enable all of
the drive s t o st art up im m ediatel y wh en pow er is a pplied to th e drives. Sy s ­tems hosting larger numbers of drives may be configured to start drives at
various times to avoid overloading the capabilities of the host system’s
power supply.

If you want to change the startup option for the drive, please refer to the
docum enta tio n prov ided with yo ur Fib re C han nel host ad apte r or host sy s­tem.

Troubleshooting

•

Drive d oes not spi n up.

drive bay on the ho st-supp lied c arrier or tray. Make sure the d rive ma kes
firm contact with the host’s FC backpane l co nnecto r.

•

Computer do es not s eem to re cogni ze the drive .

is enabled b y the FC host adapter setup utility.

Remove and then reinsert the drive into the

Verify that the d rive

Seagate support services

For online information about S eagate products, visit www.se agate.com or e­mail your disc questions to [e-mail]

If you nee d he lp insta lling yo ur dri ve, consu lt your deal er firs t. If you need
additio nal help, call a S eagate tec hnical su ppor t special ist. Before calling,
note your system configuration and drive model number (ST173404FC/

FCV).

Africa [phone] Poland 00 800-311 12 38
Australia [phone] Spain 900-98 31 24
Austria 0 800-20 12 90 Sweden 0 207 90 0 73
Belgium 0 800-74 876 Sw itzerland 0 800-83 84 11
Denmark 80 88 12 66 Singapore [phone]
F rance 0 800-90 90 52 Taiwan [phone]
Germany 0 800-182 6831 Turkey 00 800-31 92 91 40
Hong Kong [phone] United Kingdom 0 800-783 5177
Ireland 1 800-55 21 22 US A/Canada/ 1-800 SEAGATE or
Italy 800-790695 Latin America [phone]
Middle East [phone] Other European
Nether lands0 800-7 32-4283 countries [phone]
Norway 800-113 91

Warranty.
Return Merchandise Authorization (RMA).

is defective. Seagate Worldwide customer service centers are the only facilities autho­rized to service Seagate drives. Contact nearest center for return procedures and trade
regulations.

Shipping the drive
Caution.

data lost dur ing shipping or serv ice. Shipping dr ive in an u napproved container voids
the warranty. Pack the drive with or iginal box and packing materials. Use no o ther
materials. This prevents electrical and physical damage in transit.

Contact your place of purchase or our web site (above).

Before returning t he drive, verify tha t it

Back up the data before shipping. Seagate assumes no respons ibility for

© 2000 Seagate Technology, Inc. All rights reserved
Publication number: 83329483, Rev. B, March 2000, Printed in U.S.A.
Seagate, Seagate Technology, the Seagate Logo, and Cheetah ar e either regist ered

trademarks or tr ademarks of Seagate Te chnology, Inc. All other trademarks are the
property of their respective owners.