Seagate Computer Drive NL35 Series User Guide

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).  
NL35 Series FC Installation Guide  
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.  
ST3500071FC, ST3400071FC  
Publication Number: 100343674, Rev. A, May 2005  
Note. FC drives are designed to be attached to the host system without I/O  
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.  
or power cables.  
• 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.  
Figure 1.  
Sample drive carrier  
Electromagnetic compliance  
See the Safety and Regulatory Agency Specifications page, part number  
75789512, which was shipped with this installation guide.  
Note. Figure 1 shows a generic carrier. Most carriers will look different than  
the one shown. Many are actually small enclosures rather than  
brackets as shown here.  
Drive characteristics  
2. Insert the drive  
ST3500071FC  
ST3400071FC  
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.  
Formatted capacity  
500.0  
400.0 Gbytes  
Total # of data blocks (512 bytes)  
963,063,480  
(39672EB8h)  
769,544,616  
(2DDE51A8h)  
Cylinders (user accessible)  
Heads (user accessible)  
Disc rotation +/- 5%  
122,712  
8
122,712  
8
Note. There are no jumpers or terminators on the drive, and power is sup-  
plied through the 40-pin connector.  
7,200 RPM  
7,200 RPM  
+5V +12V  
3. 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 format, do not abort the format as this is likely to make the drive  
inoperable. A low level format, with verify turned on, may take over six  
hours to complete.  
Operating voltages  
Typical operating  
current (amps) 1 Gbit  
+5V  
+12V  
0.99  
0.75  
0.99 0.75  
What you need  
• Screwdriver and four 6-32 UNC drive mounting screws  
• Forced-air ventilation to provide adequate drive cooling  
Protect against power failure or other power interruptions during the format.  
• Host system with Fibre Channel host adapter or backplane  
a. Turn 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. Formatting a drive erases all user data. Be sure that you under-  
stand this principle before formatting any hard disc drive. It is not  
necessary to format a drive that previously has been used to  
store data, unless your intention is to erase all user data.  
®
Seagate is not responsible for lost user data.  
NL35 Series disc drives are designed to operate with a variety of operating  
systems. Please refer to your system or Fibre Channel host adapter (con-  
troller) 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 allow you to insert and  
remove the drive without powering down the host system. Any time a drive  
is inserted or removed from a Fibre Channel loop, a short loop interruption  
occurs and the loop resynchronizes automatically to accommodate the  
added (or removed) drive.  
 

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