• • • • • • • • • • • • • • • • • • • • • • • • • • • • • Barracuda 36 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Disc Drive • • • • • • • • • ST136475LW/LC • • • • • • • • • • • • • Installation Guide • • • • • • • • • • • • • • • •
Contents Preface.........................................................................................1 Electrostatic discharge protection ................................................1 Important safety information and precautions.............................. 2 Wichtige Sicherheitshinweise ...................................................... 4 Regulatory agency compliance.................................................... 7 Seagate Technology support services ......................................
Barracuda 36 Installation Guide, Rev. B 1 Preface This manual contains information for users of the Seagate® Barracuda 36 SCSI disc drives. It provides support services, performance specifications, and initial setup information. Additional information is available in the Barracuda 36 Product Manual (part number 77767528). Contact your Seagate sales representative if you need to order this publication. Electrostatic discharge protection Caution.
2 Barracuda 36 Installation Guide, Rev. B • Turn off the power before removing or installing the DC power cable. • 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 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 36 Installation Guide, Rev. B 3 • Follow the precautions listed above in “Electrostatic discharge protection.” • Do not remove any circuit boards from the drive. 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 36 Installation Guide, Rev. B 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. Verwenden Sie geeignete Sicherheits- um den sicheren, zuverlässigen Betrieb dieser Einheit zu gewährleisten.
Barracuda 36 Installation Guide, Rev. B 5 • 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 36 Installation Guide, Rev. B 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. Seagate ist ständig bemüht, die Zulassungsfähigkeit von Seagate-Produkten im Rahmen der gegenwärtig geltenden Standards zu gewährleisten. Zu den typischen Anwendungen dieser Festplattenwerke zählen Systemeinbau durch den Kunden und die Konstruktion von Untersystemen.
Barracuda 36 Installation Guide, Rev. B 7 Regulatory agency compliance Electromagnetic susceptibility As a component assembly, the drive is not required to meet any susceptibility performance requirements. It is the responsibility of those integrating the drive within their systems to perform those tests required and design their system to ensure that equipment operating in the same system as the drive or external to the system does not adversely affect the performance of the drive.
8 Barracuda 36 Installation Guide, Rev. B Electromagnetic compliance for the European Union 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.
Barracuda 36 Installation Guide, Rev. B 9 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.seagate.
10 Barracuda 36 Installation Guide, Rev. B 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.
Barracuda 36 Installation Guide, Rev. B 11 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. Authorized Service Centers If you live outside the US, you can contact an Authorized Service Center for service or repair.
12 Barracuda 36 Installation Guide, Rev.
Barracuda 36 Installation Guide, Rev.
14 Barracuda 36 Installation Guide, Rev.
Barracuda 36 Installation Guide, Rev. B 15 General description Barracuda 36 SCSI disc drives are high-speed, random-access digital-data storage devices. The drive is a component for installation in an enclosure designed for the drive. This is often a rack within the system or an external enclosure designed to house one or more disc drives or other peripheral units.
16 Table 1. Barracuda 36 Installation Guide, Rev. B Drive characteristics Interface UltraSCSI [1] Capacity Formatted [2] Max. data blocks 36 Gbyte [2] 71132960 Recording Cylinders (user) Read/write data heads 11,721 20 Access time [3] Average read Average write 7.6 msec 8.4 msec Disk rotation RPM Average latency 7,200 r/min 4.
Barracuda 36 Installation Guide, Rev. B Table 2. 17 DC power requirements (Amps), multimode (SE/LVD) Voltage Regulation [5] Max. operating current DC [1] Avg. idle current DCX [1] Max. starting current (peak DC) [3] (peak AC) [3] Delayed motor start (max) [1][4] Peak operating current Typical DCX [1] [6] Maximum DC [1] Maximum (peak) ST136475LW/LC +5V +12V ±5% ±5%[2] 1.4 1.5 0.75 0.8 1.05 — 2.8 4.2 0.65 0.030 1.05 1.4 1.7 1.3 1.5 3.15 [1] Measured with an average reading DC ammeter.
18 Barracuda 36 Installation Guide, Rev. B [5] See “Conducted noise immunity” in the Barracuda 36 Product Manual. The specified voltage tolerance is inclusive of ripple, noise, and transient response. [6] Operating condition is defined as random seek read operations with a block count of 64. General Notes from Table 2. 1. Minimum current loading for each supply voltage is not less than 4% of the maximum operating current shown. 2. 3. Use separate ground returns for +5V and +12V supplies.
Barracuda 36 Installation Guide, Rev. B 19 Initial setup information The general information beginning on this page applies to all of the Barracuda 36 drive models. After reading the general information topics, refer to the appropriate drive-specific section listed below for additional information about configuring and installing your particular model.
20 Barracuda 36 Installation Guide, Rev. B SCSI ID jumpers Each device on the SCSI chain must have a unique SCSI ID. The host system’s SCSI controller usually uses the ID that has the highest priority interrupt in the SCSI I/O system. This is always ID7. ID0 is lowest priority in an 8-bit I/O system. ID8 is lowest priority in a 16-bit I/O system. The lower priority SCSI IDs are normally used for other SCSI devices such as this Barracuda disc drive. Note.
Barracuda 36 Installation Guide, Rev. B 21 the case, change the ID so that each device on the SCSI chain has its own unique ID. Also check your system or controller user’s manual to ensure that you have not violated its SCSI ID numbering recommendations. Drive termination If you are installing a Barracuda drive in a system that has other SCSI devices installed, terminate only the end devices on the SCSI chain.
22 Barracuda 36 Installation Guide, Rev. B For information about how to terminate your drive, refer to the appropriate drive-specific section. Internal SCSI cable Internal SCSI device Internal SCSI device Controller Terminate Internal SCSI cable Internal SCSI device Internal SCSI device Controller External SCSI cable External SCSI device External SCSI device Terminate Figure 2.
Barracuda 36 Installation Guide, Rev. B 23 ground (see Figure 12). The host device cannot override the SE jumper. If “DIFFSNS” is at nominal ground (0V to .6V), all of the bus receivers/drivers operate in single-ended mode. If “DIFFSNS” is between .7V and 1.9V, all bus receiver/drivers operate in low voltage differential (LVD) mode.
24 Table 4a. Barracuda 36 Installation Guide, Rev. B Cable characteristics for single-ended I/O circuits Number of attached SCSI devices Maximum distance between terminators (meters) [1] [3] Fast-5 Fast-10 Fast-20 Fast-40 1 to 4 maximum capacitance (25 pF) SCSI devices 6 3 3 N/A 5 to 8 maximum capacitance (25 pF) SCSI devices 6 3 1.
Barracuda 36 Installation Guide, Rev. B 25 Table 4b.
26 Figure 3a. Barracuda 36 Installation Guide, Rev.
Barracuda 36 Installation Guide, Rev. B “LW” Model Drive 27 Note. Do not mix drives operating single-ended with drives operating differential on the daisy chain. [3] SCSI ID X (or last drive) [4] Additional SCSI devices Pin 1 (check your adapter for Pin 1 location) SCSI ID 1 SCSI ID 7 [1] Host Adapter PCBA SCSI ID 0 [3] [2] [1] Closed end type 68 pin connector used. Terminator required. [2] Open end type (in-line application) connector used. No terminator.
28 Barracuda 36 Installation Guide, Rev. B Note. This drive model plugs directly into a backplane connector and therefore uses no cables. Figure 3c.
Barracuda 36 Installation Guide, Rev. B 29 Providing adequate cooling The enclosure design must ensure adequate cooling for the drive. The maximum ambient air temperature around the drive should not exceed 50°C. However, to achieve maximum reliability, the ambient temperature should be about 15°C below this value most of the time. The drive’s product manual (77767528) describes how to evaluate the air-flow design.
30 Barracuda 36 Installation Guide, Rev. B Kühlung des Systems Die Gehäusekonstruktion muß eine ausreichende Kühlung des Laufwerkes gewährleisten. Die Umgebungstemperatur darf maximal 50°C betragen. Die Produkthandbuch Barracuda 36 (Dokument 77767528) enthalten Anweisungen zur Beurteilung der Luftstromkonstruktion.
Barracuda 36 Installation Guide, Rev. B 31 . 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 4. Suggested air flow Abbildung 4.
32 Barracuda 36 Installation Guide, Rev. B Mounting the drive and connecting cables 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. The drive may be mounted in any orientation (horizontally, vertically, and any combination thereof); however, you must ensure that the drive receives adequate air flow for cooling. 1. Mount the drive to the host system’s chassis using four 6-32 UNC screws.
Barracuda 36 Installation Guide, Rev. B 33 1. Befestigen Sie das Laufwerk mit vier 6-32-UNC-Schrauben am Gehäuse des Host-Systems. Die beiden Seiten des Laufwerkes sind mit jeweils zwei Befestigungslöchern versehen, die Unterseite des Laufwerkes weist vier weitere Befestigungslöcher auf. 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.
34 Barracuda 36 Installation Guide, Rev. B the DC power connector. To connect the DC power cable to the drive, simply insert the cable end into the drive’s DC power connector. 4. Schließen Sie das SCSI-Kabel an den SCSI-Steckverbinder des Laufwerkes an. Das Kabel darf nicht gedehnt oder gedrückt werden und es darf den Luftstrom zur Kühlung des Systems nicht behindern. Das Laufwerk wird über einen 4-poligen, neben dem SCSIAnschluß befestigten Steckverbinder mit Gleichstrom versorgt.
Barracuda 36 Installation Guide, Rev. B 35 Note. Signal ground on the printed circuit board assembly (PCBA) and the head and disc assembly (HDA) are connected together in this drive and you cannot separate them. The equipment in which you have mounted the drive is connected directly to the HDA and PCBA without electrically isolating shock mounts. Maximizing the conductive contact area between HDA ground and system ground may reduce radiated emissions.
36 Barracuda 36 Installation Guide, Rev. B elektromagnetische Strahlung fällt in den Zuständigkeitsbereich des Systemdesigners. 5. Replace the host system’s cover. 5. Setzen Sie das Gehäuseoberteil des Host-Systems wieder auf.
Barracuda 36 Installation Guide, Rev. B 37 C [3] G [1] D F E A Notes: [1] Mounting holes three on each side, 6-32 UNC. Max screw length into side of drive 0.15 in. (3.81 mm). Screw tightening torque 6.0 in-lb (.675 NM) max with minimum thread engagement of 0.12 in. (3.05 mm). [2] Mounting holes four on bottom, 6-32 UNC. Max screw length into bottom of drive 0.15 in. (3.81 mm). Screw tightening torque 6.0 in-lb (.675 NM) max with minimum thread engagement of 0.12 in. (3.05 mm).
38 Barracuda 36 Installation Guide, Rev. B Formatting the drive Warning. Formatting a drive erases all user data. Be sure that you understand 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. Note. Seagate is not responsible for lost user data. 1. 2. 3. Turn on DC power.
Barracuda 36 Installation Guide, Rev. B 39 LW drives Setting the SCSI W/WD ID jumpers drives section Use the J6 jumper block to set the SCSI ID (Figure 7). To change the SCSI ID, install jumpers on the appropriate pins as shown in the illustration. Optional connections to switching circuits in host equipment are provided on J1 auxiliary to set the SCSI ID (see Figure 8). Terminating the drive “LW” model drives do not have internal terminators or any other way of adding internal termination to the drive.
40 Barracuda 36 Installation Guide, Rev. B LW drives Drive Front Jumper Plug (enlarged to show detail) Pin 1 J6 [1] Reserved SCSI ID = 0 L R E E D S A3 A2 A1A0 (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 Figure 7.
Barracuda 36 Installation Guide, Rev. B 41 LW drives 68 Pin SCSI I/O +5V Connector Ground Pin 1 J5 Pin 1 4P J1-DC Power 3P2P Drive HDA Rear 1P J1 (default) SCSI ID = 0 PCBA SCSI ID = 1 SCSI ID = 2 SCSI ID = 3 SCSI ID = 4 SCSI ID = 5 SCSI ID = 6 For ID selection use jumpers as shown or connect a cable for remote switching as shown below.
42 Barracuda 36 Installation Guide, Rev. B LW drives Other applicable jumper options Other option jumpers are available as illustrated in Figures 9 and 10. J2 Drive with HDA up, PCB down, viewed from front Pin 1 [1] Pin 1 HDA Low voltage differential Delay Motor Start option (valid only if the Enable Motor Start jumper is not connected) J6 Reserved L R E EA A A A D S 3 2 1 0 Reserved 11 Remote LED 12 CATH Shipped with cover installed. Do not remove.
Barracuda 36 Installation Guide, Rev. B 43 LW drives Pin 1 J2 [3] RR S D MW P E E T E S E P D S S P A jumper here forces single-ended I/O operation. [2] No jumper allows host to select either single-ended or LVD operation. (default) Term. Power to SCSI Bus Host adapter or other device provides term. power to external terminator. (default) [1] J2 J6 J2 Jumper Plug (enlarged to show detail) Drive Front [1] “TP” not used on “LC” drives. [2] Jumper not to be used for “LW” operation.
44 Barracuda 36 Installation Guide, Rev. B LC drives Setting the SCSIWC/DC ID jumpers drives section The SCSI ID for “LC” model drives is normally set over the SCSI bus by the host system using connector contacts 39 (ID0), 40 (ID2), 79 (ID1), and 80 (ID3). Users need not install jumpers to select SCSI ID. Terminating the drive “LC” model drives do not have internal terminators or any other way of adding internal termination to the drive.
Barracuda 36 Installation Guide, Rev. B 45 LC drives Pin 1 J2 [1] Delay Motor Start option The host system has complete control over motor start functions. Do not install a jumper on these pins. RR R S D MW P E E E E S E P D S S S (default) Enable Motor Start option The host system has complete control over motor start functions. Do not install a jumper on these pins.
46 Barracuda 36 Installation Guide, Rev. B LC drives Single-ended/low-voltage-differential selection The SE jumper, when installed on J2, forces the drive I/O circuits and all other devices on the SCSI bus to operate in the singleended (SE) mode. When the SE jumper is not on, the SCSI I/O can operate in either single-ended or low-voltage differential (LVD) mode, depending on which mode the host device has selected using the “DIFFSNS” I/O line.
Barracuda 36 Installation Guide, Rev. B 47 LC drives Pin 1 J2 [1] Single-Ended I/O A jumper here forces single-ended I/O operation. RR R S D MW P E E E E S E P D S S S No jumper allows host to select either single-ended or LVD operation. (default) J2 J6 J2 Jumper Plug (enlarged to show detail) Drive Front [1] Jumper position names shown here are not marked on the PCBA. They are shown here for reference only. Figure 12.
Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, CA 95066-4544, USA Publication Number: 77767529, Rev.
