Barracuda 4XL Family ST34572N W WD WC DC ST32272N

Barracuda 4xl Family St34572n W Wd Wc Dc St32272n-Free PDF

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Barracuda 4XL Family,ST34572N W WD WC DC,ST32272N W WD WC DC. Product Manual Volume 1,1997 Seagate Technology Inc All rights reserved. Publication number 77767500 Rev B,November 1997, Seagate Seagate Technology and the Seagate logo are registered trademarks of Seagate Tech. nology Inc Barracuda SeaFAX SeaFONE SeaNET SeaTDD and SeaBOARD are either. trademarks or registered trademarks of Seagate Technology Inc or one of its subsidiaries All. other trademarks or registered trademarks are the property of their respective owners. Seagate reserves the right to change without notice product offerings or specifications No part. of this publication may be reproduced in any form without written permission of Seagate Technol. Revision status summary sheet,Revision Date Writer Engineer Sheets Affected. A Issue 03 26 97 L Newman A Ukani 1 1 v thru viii 1 thru 82. B 11 04 97 L Newman A Ukani 8 9 10 28 29 30 47 49 50 and 72. This manual is volume 1 of a two volume document with the SCSI interface information in the Volume 2. SCSI Interface Product Manual part number 77738479. If you need the SCSI interface information order the volume 2 SCSI Interface Product Manual part. number 77738479,Barracuda 4XL Product Manual Rev B vii.
1 0 Scope 1, 2 0 Applicable standards and reference documentation 3. 2 1 Standards 3,2 1 1 Electromagnetic compatibility 3. 2 1 2 Electromagnetic susceptibility 3,2 2 Electromagnetic compliance 3. 2 3 Reference documents 4,3 0 General description 5. 3 1 Standard features 7,3 2 Media characteristics 7.
3 3 Performance 7,3 4 Reliability 7,3 5 Unformatted and formatted capacities 8. 3 6 Programmable drive capacity 8,3 7 Factory installed accessories 8. 3 8 Options factory installed 8,3 9 Accessories user installed 8. 4 0 Performance characteristics 9, 4 1 Internal drive characteristics transparent to user 9. 4 2 SCSI Seek performance characteristics visible to user 9. 4 2 1 Access time 9,4 2 2 Format command execution time minutes 10.
4 2 3 Generalized performance characteristics 10,4 3 Start stop time 11. 4 4 Prefetch multi segmented cache control 11,4 5 Cache operation 11. 4 5 1 Caching write data 12,4 5 2 Prefetch operation 12. 5 0 Reliability specifications 15,5 1 Error rates 15. 5 1 1 Environmental interference 15,5 1 2 Read errors 15.
5 1 3 Write errors 15,5 1 4 Seek errors 16,5 2 Reliability and service 16. 5 2 1 Mean time between failure 16,5 2 2 Preventive maintenance 16. 5 2 3 Service life 16,5 2 4 Service philosophy 16,5 2 5 Service tools 16. 5 2 6 Hot plugging Barracuda 4XL disc drives 17,5 2 7 S M A R T 17. 5 2 8 Product warranty 18,6 0 Physical electrical specifications 21.
6 1 AC power requirements 21,6 2 DC power requirements 21. 6 2 1 Conducted noise immunity 22,6 2 2 Power sequencing 22. 6 2 3 12 V Current profile 22,6 3 Power dissipation 23. 6 4 Environmental limits 23,6 4 1 Temperature 23,viii Barracuda 4XL Product Manual Rev B. 6 4 2 Relative humidity 25,6 4 3 Effective altitude sea level 25.
6 4 4 Shock and vibration 25,6 4 4 1 Shock 25,6 4 4 2 Vibration 27. 6 4 5 Air cleanliness 27,6 4 6 Acoustics 27,6 4 7 Electromagnetic susceptibility 27. 6 5 Mechanical specifications 28,7 0 Defect and error management 31. 7 1 Drive internal defects and errors 31,7 2 SCSI systems errors 31. 8 0 Installation 33,8 1 Drive ID option select header 33.
8 1 1 Notes for Figures 9 10 11 12 and 13 38,8 1 2 Function description 40. 8 2 Drive orientation 41,8 3 Cooling 41,8 3 1 Air flow 41. 8 4 Drive mounting 42,8 5 Grounding 42,9 0 Interface requirements 43. 9 1 General description 43,9 2 SCSI interface messages supported 43. 9 3 SCSI interface commands supported 44,9 3 1 Inquiry Vital Product data 47.
9 3 2 Mode Sense data 48, 9 4 SCSI bus conditions and miscellaneous features supported 51. 9 5 Synchronous data transfer 52, 9 5 1 Synchronous data transfer periods supported 52. 9 5 2 REQ ACK offset 52,9 6 Physical interface 52,9 6 1 DC cable and connector 52. 9 6 2 SCSI interface physical description 55,9 6 3 SCSI interface cable requirements 55. 9 6 3 1 Single ended I O circuits N and W models 56. 9 6 3 2 Differential I O circuits WD and DC models 56. 9 6 4 Mating connectors 56,9 6 4 1 Mating connectors for N models 57.
9 6 4 2 Mating connectors for W and WD models 57,9 6 4 3 Mating connectors for WC and DC models 57. 9 7 Electrical description 68,9 7 1 Single ended drivers receivers 68. 9 7 2 Differential drivers receivers 69,9 8 Terminator requirements 71. 9 9 Terminator power 71,9 10 Disc drive SCSI timing 72. 10 0 Seagate technical support services 75,Barracuda 4XL Product Manual Rev B ix.
Figure 1 Barracuda 4XL family drive 1,Figure 2 Barracuda 4XL family drive 6. Figure 3 Typical Barracuda 4XL family drive 5 V and 12 V current profile 22. Figure 4 Locations of printed circuit board PCB components listed in Table 3 24. Figure 5 Recommended mounting 26, Figure 6 Mounting configuration dimensions for models N 28. Figure 7 Mounting configuration dimensions for models W and WD 29. Figure 8 Mounting configuration dimensions for models WC and DC 30. Figure 9 Barracuda 4XL family drive ID select header for models N 34. Figure 10 Barracuda 4XL family drive ID select for models W WC WD and DC 35. Figure 11 Barracuda 4XL family drive ID select header J1 auxiliary for models W and WD. J1 Auxiliary Pins 1A 12A 36, Figure 12 Barracuda 4XL family drive option select header for models N W and WD 37. Figure 13 Barracuda 4XL family drive option select header for models WC and DC 37. Figure 14 Air flow suggested 41, Figure 15 Physical interface for N model drives 53. Figure 16 Physical interface for W and WD model drives 54. Figure 17 Physical interface for WC and DC model drives 54. Figure 18 SCSI daisy chain interface cabling for N W and WD model drives 58. Figure 19 Nonshielded 50 pin SCSI device connector used on N model drives 59. Figure 20 Non shielded 68 pin SCSI device connector used on W and WD model drives 60. Figure 21 Non shielded 80 pin SCSI SCA 2 connector used on WC and DC model drives 61. Figure 22 Single ended transmitters and receivers 68. Figure 23 Typical differential I O line transmitter receiver and external terminators 70. Barracuda 4XL Product Manual Rev B 1, This manual describes the Seagate Technology Inc Barracuda 4XL disc drives.
Barracuda 4XL drives support the small computer system interface SCSI as described in the ANSI SCSI. SCSI 2 and SCSI 3 Fast 20 interface specifications to the extent described in this manual The SCSI Inter. face Product Manual part number 77738479 describes general SCSI interface characteristics of this and. other families of Seagate drives, From this point on in this product manual the reference to Barracuda 4XL models is referred to as the drive. unless references to individual models are necessary. Model N version with 50 pin SCSI I O connector,Figure 1 Barracuda 4XL family drive. Barracuda 4XL Product Manual Rev B 3, 2 0 Applicable standards and reference documentation. The drive has been developed as a system peripheral to the highest standards of design and construction The. drive depends upon its host equipment to provide adequate power and environment in order to achieve opti. mum performance and compliance with applicable industry and governmental regulations Special attention. must be given in the areas of safety power distribution shielding audible noise control and temperature regu. lation In particular the drive must be securely mounted in order to guarantee the specified performance char. acteristics Mounting by bottom holes must meet the requirements of Section 8 4. 2 1 Standards, Barracuda 4XL family drives comply with Seagate standards as noted in the appropriate sections of this man. ual and the Seagate SCSI Interface Product Manual part number 77738479 Vol 2. Barracuda 4XL disc drives are UL recognized components per UL1950 CSA certified to CSA C22 2 No 950. M89 and VDE certified to VDE 0805 and EN60950,2 1 1 Electromagnetic compatibility.
The drive as delivered is designed for system integration and installation into a suitable enclosure prior to use. As such the drive is supplied as a subassembly and is not subject to Subpart B of Part 15 of the FCC Rules. and Regulations nor the Radio Interference Regulations of the Canadian Department of Communications. The design characteristics of the drive serve to minimize radiation when installed in an enclosure that provides. reasonable shielding As such the drive is capable of meeting the Class B limits of the FCC Rules and Regula. tions of the Canadian Department of Communications when properly packaged However it is the user s. responsibility to assure that the drive meets the appropriate EMI requirements in their system Shielded I O. cables may be required if the enclosure does not provide adequate shielding If the I O cables are external to. the enclosure shielded cables should be used with the shields grounded to the enclosure and to the host con. 2 1 2 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 See Section 5 1 1 and Table 2 DC power requirements. 2 2 Electromagnetic compliance, Seagate uses an independent laboratory to confirm compliance to the directives standard s for CE Marking. and C Tick Marking The drive was tested in a representative system for typical applications The selected sys. tem represents the most popular characteristics for test platforms The system configurations include. 486 Pentium and PowerPC microprocessors,3 5 inch floppy disc drive. Monitor display,External modem, Although the test system with this Seagate model complies to the directives standard s we cannot guarantee. that all systems will comply The computer manufacturer or system integrator shall confirm EMC compliance. and provide CE Marking and C Tick Marking for their product. 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 1993,4 Barracuda 4XL Product Manual Rev B. Australian C Tick, If this model has the C Tick Marking it complies with the Australia New Zealand Standard AS NZS3548 1995. and meets the Electromagnetic Compatibility EMC Framework requirements of Australia s Spectrum Man. agement Agency SMA,2 3 Reference documents, Barracuda 4XL Installation Guide Seagate P N 77767501. SCSI Interface Product Manual Seagate P N 77738479. ANSI Small Computer System Interface SCSI ANSI3 131 1986 X3T9 84 40 Rev 1B. X3T9 2 82 2 Rev 17B X3T9 2 86 109 Revision 10H SCSI 2 X3T9 2 91 010 Rev 10 SCSI 3 parallel inter. face X3T9 2 184 Rev 4 SCSI 3 and ANSI SCSI 3 Fast 20 X3T10 1071D. Package Test Specification Seagate P N 30190 001 under 100 lb. Package Test Specification Seagate P N 30191 001 over 100 lb. Specification Acoustic Test Requirements Seagate P N 30553 001. In case of conflict between this document and any referenced document this document takes precedence. Barracuda 4XL Product Manual Rev B 5,3 0 General description. Barracuda 4XL drives combine magnetoresistive MR heads partial response maximum likelihood PRML. read channel electronics embedded servo technology and a SCSI 3 Fast 20 interface to provide high perfor. mance high capacity data storage for a variety of systems including engineering workstations network serv. ers mainframes and supercomputers, Fast 20 also known as Ultra SCSI is a negotiated transfer rate This transfer rate will occur only if your host.
adapter also supports Fast 20 data transfer rates This drive also operates at SCSI 1 and SCSI 2 data transfer. rates for backward compatibility with non Fast 20 capable SCSI host adapters. Table 1 lists the features that differentiate the various Barracuda 4XL SCSI 3 Fast 20 Ultra SCSI models. Table 1 Drive model number vs differentiating features. Number Number of I O Number of I O, Model number of heads I O circuit type connector pins data bus bits. ST34572N 8 single ended 50 8,ST34572W 8 single ended 68 16. ST34572WD 8 differential 68 16,ST34572WC 8 single ended 80 16. ST34572DC 8 differential 80 16,ST32272N 4 single ended 50 8. ST32272W 4 single ended 68 16,ST32272WD 4 differential 68 16.
ST32272WC 4 single ended 80 16,ST32272DC 4 differential 80 16. The drive records and recovers data on 3 5 inch 86 mm non removeable discs. The drive supports the Small Computer System Interface SCSI as described in the ANSI SCSI 2 interface. specifications to the extent described in this manual volume 1 which defines the product performance char. acteristics of the Barracuda 4XL family of drives and the SCSI Interface Product Manual volume 2 part num. ber 77738479 which describes the general interface characteristics of this and other families of Seagate SCSI. Revision status summary sheet Notice This manual is volume 1 of a two volume document with the SCSI interface information in the Volume 2 SCSI Interface Product

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