• • • • • • • • • • • • • • • • • • • • • • Barracuda 18LP FC • • • • • • • • • • • • • • • • • • • • • • Fibre Channel • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Disc Drive • • • • • • • • • ST318275FC • • • • • • • • • • • ST39175FC • • • • • • • • • • • Installation Guide • • • • • • • • • • • • • • •
Contents Preface ........................................................................................ 1 Electrostatic discharge protection ............................................... 1 Important safety information and precautions ............................. 2 Wichtige Sicherheitshinweise ...................................................... 4 Seagate Technology support services......................................... 8 General description .........................................................
Barracuda 18LP FC Installation Guide, Rev. A 1 Preface This manual contains information for users of Seagate Barracuda 18LP FC (Fibre Channel interface) disc drives. It provides technical support information, performance specifications, installation instructions, and a troubleshooting section. Additional information is available in the Barracuda 18LP FC Product Manual (part number 77767541). Contact your Seagate sales representative if you need to order this publication.
2 Barracuda 18LP FC Installation Guide, Rev. A grounded to avoid potentially damaging static discharges. • Do not remove any circuit boards from the drive. • Never use an ohmmeter on any circuit boards. • When installing the drive on a carrier or tray, discharge the static electricity from the carrier or tray prior to inserting it into the system. Important safety information and precautions Caution. Use forced-air ventilation when bench-testing the drive to ensure proper cooling of drive components.
Barracuda 18LP FC Installation Guide, Rev. A 3 • Follow the precautions listed above in “Electrostatic discharge protection.” • Do not remove any circuit boards from the drive chassis. Return the entire drive for depot repair if any circuit board is defective. Removal of circuit boards by personnel not performing depot repair will damage components and may void the warranty. • Do not remove the head and disc assembly (HDA) from the drive. Return the entire drive for depot repair if the HDA is defective.
4 Barracuda 18LP FC Installation Guide, Rev. A This unit is a component part and as such is not meant to comply with FCC or similar national requirements as a stand-alone unit. Engineering radiated emissions test results are available through the Seagate Safety Department to assist the subsystem designer. Wichtige Sicherheitshinweise Vorsicht. Beim Testen des Laufwerks auf dem Prüftisch ist Fremdbelüftung vorzusehen, um eine ausreichende Kühlung der Laufwerkkomponenten sicherzustellen.
Barracuda 18LP FC Installation Guide, Rev. A 5 Beachten Sie in jedem Fall die folgenden Warn-und Vorsichtshinweise: • Beachten Sie alle Warn- und Vorsichtshinweise in diesem Handbuch. • Treffen Sie beim Betrieb, bei der Installation oder bei der Entfernung der Einheit angemessene Sicherheitsvorkehrungen. • Wenn eine Einheit unter Spannung steht, gehen Sie bei der Fehlerdiagnose besonders vorsichtig vor. Schalten Sie die Einheit aus, bevor Sie mit den Installations-und Entfernungsarbeiten beginnen.
6 Barracuda 18LP FC Installation Guide, Rev. A • Die HDA ist nicht vor Ort reparierbar und darf nicht auseinandergenommen werden! Öffnen der versiegelten HDA durch andere Personen als die für die werkseitige Reparatur zuständigen hat eine Beschädigung der Komponenten und Erlöschen des Garantieanspruchs zur Folge. Als Teilkomponente ist dieses Laufwerk für die Installation und den Betrieb in Übereinstimmung mit UL 1950, EN60950, CAN\CSA C22.2 950-95 und VDE0805 vorgesehen.
Barracuda 18LP FC Installation Guide, Rev. A 7 European Union Compliance If this model has the CE Marking, it complies with the European Union requirements of the Electromagnetic Compatibility Directive 89/336/EEC of 03 May 1989 as amended by Directive 92/31/ EEC of 28 April 1992 and Directive 93/68/EEC of 22 July 1993.
8 Barracuda 18LP FC Installation Guide, Rev. A Seagate Technology support services Online Services Internet For o n l i n e i n fo r m a t i o n ab o u t S e a ga t e p ro d u c t s, v i s i t www.seagate.com or e-mail your disc or tape questions to: Presales Support: Disc: http://www.seagate.com/support/email/ email_presales.shtml or DiscPresales@Seagate.com Tape: http://www.seagate.com/support/email/ email_tape_presales.shtml or Tape_Sales_Support@Seagate.com Technical Support: Disc: http://www.
Barracuda 18LP FC Installation Guide, Rev. A 9 phone numbers, commonly asked questions, troubleshooting tips and specifications for disc drives and tape drives 24 hours daily. International callers can reach this service by dialing +1405-936-1234. SeaFAX ® is Seagate's automated FAX delivery system. Using a touch-tone phone, you can obtain technical support information by return FAX 24 hours daily. This service is available worldwide.
10 Barracuda 18LP FC Installation Guide, Rev. A specialist from 8:00 A.M. to 12:15 P.M. and 1:30 P.M. to 6:00 P.M. (central time) Monday through Friday. Customer Service (CSO) Warranty Repair Seagate offers worldwide customer support for Seagate drives. Seagate direct OEM, Distribution and System Integrator customers should contact their Seagate service center representative for warranty information. Other customers should contact their place of purchase.
Barracuda 18LP FC Installation Guide, Rev.
12 Barracuda 18LP FC Installation Guide, Rev.
Barracuda 18LP FC Installation Guide, Rev.
14 Barracuda 18LP FC Installation Guide, Rev. A General description Barracuda 18LP FC disc drives are high-speed, random-access digital-data storage devices designed to be used within a Fibre Channel host system. The drive is a component for installation in an enclosure designed for the drive. The disc drive must receive adequate cooling (refer to “Providing adequate cooling”) and it must be sufficiently grounded and shielded from emissions.
Barracuda 18LP FC Installation Guide, Rev. A 15 Characteristics ST39175FC ST318275FC Interface Fibre Channel Fibre Channel Capacity Unformatted (Gbytes) Formatted (Gbytes)1 10.8 9.1 21.6 18.2 Recording Cylinders (user) Read/write data heads Avg bytes/track 11,721 5 186,000 11,721 10 186,000 Access time Average read (msec) Average write (msec) 6.9 7.8 6.9 7.8 Disc rotation RPM Average latency (msec) 7,200 (+/- 0.5%) 4.17 7,200 (+/- 0.5%) 4.
16 Barracuda 18LP FC Installation Guide, Rev. A Installing the Barracuda 18LP FC drive To install a Barracuda 18LP FC drive, simply plug the drive directly into your system’s Fibre Channel backpanel 40-pin single connector attachment (FC-SCA). There are no jumpers or terminators on the drive, and power is supplied through the connector. Table 1 on page 25 lists the pin descriptions of the 40-pin FC-SCA.
Barracuda 18LP FC Installation Guide, Rev. A 17 Figure 2 shows one design approach with one or more fans used to generate air flow. The air-flow pattern can be created by the fans either pushing or drawing air. The overall flow pattern must be directed from side to side in most FC-SCA systems. Kühlung des Systems Die Gehäusekonstruktion muß eine ausreichende Kühlung des Laufwerkes gewährleisten. Die Umgebungstemperatur darf maximal 50oC betragen (30oC für der MTBF).
18 Barracuda 18LP FC Installation Guide, Rev. A Above unit Under unit Note. Air flows in the direction shown (front to back) or in reverse direction (back to front) Above unit Note. Air flows in the direction shown or in reverse direction (side to side) Under unit Figure 2: Suggested air flow Abbildung 2.
Barracuda 18LP FC Installation Guide, Rev. A 19 Mounting the drive Do not touch the connector pins or any components on the control board without observing static-discharge precautions. Always handle the drive by the frame only. You may mount the drive in any orientation (horizontally, vertically, or any combination thereof); however, you must ensure that the drive receives adequate air flow for cooling. Mount the drive to the host system’s chassis using four 6-32 UNC screws.
20 Barracuda 18LP FC Installation Guide, Rev. A Unterseite des Laufwerkes weist vier weitere Befestigungslöcher auf. Siehe Abbiludung 3. Gemessen von der Außenfläche des Gehäuses dürfen die Schrauben maximal 3,81 mm in die Befestigungslöcher des Gehüuses hineinragen. Die Schrauben müssen gleichmäßig, jedoch nicht zu fest, angezogen werden. Wenn sich eine Schraube nicht ohne Widerstand einschrauben läßt, sind die Gewinde nicht korrekt aneinander ausgerichtet.
Barracuda 18LP FC Installation Guide, Rev. A 21 A [1] M F C D L E Notes: [1] Mounting holes three on each side, 6-32 UNC. Max screw length into side of drive is 0.15 in. (3.81 mm). B 1.875±.005 H 1.875±.005 [2] Mounting holes four on bottom, 6-32 UNC. Max screw length into bottom of drive is 0.15 in. (3.81 mm). [3] Keep-out zone for any components on backplane. J [4] Connector is centered on module and flush with end of base. Inches K [2] N .136 Motherboard Ref. P [4] (.809) Pin 1 5.
22 Barracuda 18LP FC Installation Guide, Rev. A Inserting the drive Most systems 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 attachment (FC-SCA). Refer to your system documentation about the method they provide and follow their instructions. When installing the drive on a carrier or tray, discharge the static electricity from the carrier or tray prior to inserting it into the system.
Barracuda 18LP FC Installation Guide, Rev. A 23 Enabling write cache Write caching is a feature that allows the drive to transfer write data to its own cache, tell the controller that the task is complete, and then actually complete the write at a later time. This improves write performance by freeing the CPU to go on to its next command. Warning.
24 Barracuda 18LP FC Installation Guide, Rev. A Drive Front Pin 1 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] [1] The drive has a 2.2K ohm resistor in series with this LED driver. Tie the minus side of an external highefficiency 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.
Barracuda 18LP FC Installation Guide, Rev.
26 Pin/contact Barracuda 18LP FC Installation Guide, Rev. A Signal name 26 Ground 27* +Port B_in 28* –Port B_in 29 Ground 30* +Port A_out 31* –Port A_out 32 Ground 33* +Port B_out 34* –Port B_out 35 Ground Signal type Diff. PECL input pair Diff. PECL output pair Diff. PECL output pair 36 SEL_2 TTL input/output 37 SEL_1 TTL input/output TTL input/output 38 SEL_0 39 Reserved NC 40 5 Volts charge *Short pins in mating backpanel connector.
Barracuda 18LP FC Installation Guide, Rev. A 27 Troubleshooting Before calling Seagate Technical Support, please read the possibilities discussed below. The suggestions presented here will resolve the majority of installation problems. General installation troubleshooting • Check system compatibility. This is a Fibre Channel (FC) device. Check your system documentation to ensure that it supports FC devices. • Check the physical attachment.
Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, CA 95066-4544, USA Publication Number: 77767542, Rev.
