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Cheetah 73LP Family:
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ST373405LW/LWV/LC/LCV
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ST336605LW/LC/LCV
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cheetah 73LP Family: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST373405LW/LWV/LC/LCV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST336605LW/LC/LCV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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© 2002 Seagate Technology LLC All rights reserved Publication number: 100109943, Rev. E May 2002 Seagate, Seagate Technology, and the Seagate logo are registered trademarks of Seagate Technology LLC. Cheetah, SeaFAX, SeaFONE, SeaBOARD, and SeaTDD are either registered trademarks or trademarks of Seagate Technology LLC. Other product names are registered trademarks or trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications. No part of
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Revision status summary sheet Revision Date Writer/Engineer Sheets Affected Rev. A (Class C Release) 11/6/2000 L. Newman/J. Nowitzke 1/1, v thru viii, 1-76. Rev. B (Class A Release) 04/12/2001 L. Newman/J. Nowitzke All pages. Rev. C 05/17/2001 L. Newman/J. Nowitzke Page 45. Rev. D 10/30/2001 L. Newman/B. Hohn Cover, and pages 3, 5, 27, and 54. Rev. E 05/16/2002 K. Schweiss/B. Hohn Pages 1, 4, 54, and 64-66. Notice. Product Manual 100109943 is Volume 1 of a two volume document with the
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Cheetah 73LP Product Manual, Rev. E v Contents 1.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Applicable standards and reference documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1.1 Electromagnetic
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vi Cheetah 73LP Product Manual, Rev. E 6.4.1 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 6.4.2 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 6.4.3 Effective altitude (sea level). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 6.4.4 Shock and vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Cheetah 73LP Product Manual, Rev. E vii List of Figures Figure 1. Cheetah 73LP family drive (ST373405LW shown) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2. Cheetah 73LP family drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 3. Typical ST373405 drive +12 V current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 4. Typical ST336605 drive +12 V current pr
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Cheetah 73LP Product Manual, Rev. E 1 1.0 Scope ® ® This manual describes Seagate Technology LLC, Cheetah 73LP disc drives. Cheetah 73LP drives support the small computer system interface (SCSI) as described in the ANSI SPI-3 (SCSI Parallel Interface-3) interface specification to the extent described in this manual. The SCSI Interface Product Manual (part number 75789509) describes general SCSI interface characteristics of this and other families of Seagate drives. From this point on in this pr
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2 Cheetah 73LP Product Manual, Rev. E
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Cheetah 73LP Product Manual, Rev. E 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
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4 Cheetah 73LP Product Manual, Rev. E 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). Korean MIC If this model has the Korean Ministry of Information and Communication (MIC) logo, it complies with paragraph 1 of Article 11 of the Electromagnetic Compatibility (EMC) Control Regulation and meets the El
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Cheetah 73LP Product Manual, Rev. E 5 3.0 General description Cheetah 73LP drives combine giant magnetoresistive (GMR) heads, partial response/maximum likelihood (PRML) read channel electronics, embedded servo technology, and a wide Ultra160 SCSI interface to provide high performance, high capacity data storage for a variety of systems including engineering workstations, net- work servers, mainframes, and supercomputers. The Ultra160 interface uses negotiated transfer rates. These transfer rates
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6 Cheetah 73LP Product Manual, Rev. E A high-performance actuator assembly with a low-inertia, balanced, patented, straight-arm design provides excellent performance with minimal power dissipation. Figure 2. Cheetah 73LP family drive
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Cheetah 73LP Product Manual, Rev. E 7 3.1 Standard features The Cheetah 73LP family has the following standard features: Integrated Ultra/Ultra2/Ultra3 SCSI controller Multimode SCSI drivers and receivers—single-ended (SE) and low voltage differential (LVD) 16-bit I/O data bus Asynchronous and synchronous data transfer protocol Firmware downloadable via SCSI interface Selectable even byte sector sizes from 512 to 4,096 bytes/sector Programmable sector reallocation scheme Flawed s
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8 Cheetah 73LP Product Manual, Rev. E 3.5 Unformatted and formatted capacities Formatted capacity depends on the number of spare reallocation sectors reserved and the number of bytes per sector. The following table shows the standard OEM model capacities: Formatted data block size 512 bytes/sector [1] Unformatted ST373405 088BB995h (73.4 GB) [2] 97.0 GB ST336605 0445DCCBh (36.7 GB) [2] 48.5 GB Notes. [1] Sector size selectable at format time. Users having the necessary equipment may modify the
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Cheetah 73LP Product Manual, Rev. E 9 4.0 Performance characteristics 4.1 Internal drive characteristics (transparent to user) ST373405 ST336605 Drive capacity 73.4 36.7 GByte (formatted, rounded off values) Read/write heads 8 4 Bytes/track 397,385 397,385 Bytes (average, rounded off values) Bytes/surface 12,100 12,100 Mbytes (unformatted, rounded off values) Tracks/surface (total) 29,549 29,549 Tracks (user accessible) Tracks/inch 38,000 38,000 TPI Peak bits/inch 474 474 KBPI Internal data r
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10 Cheetah 73LP Product Manual, Rev. E SCSI interface data transfer rate (asynchronous): Maximum instantaneous one byte wide 5.0 Mbytes/sec [4] Maximum instantaneous two bytes wide 10.0 Mbytes/sec [4] Synchronous formatted transfer rate Ultra2 SCSI Ultra3 SCSI On narrow (8-bit) bus in LVD mode 5.0 to 40 Mbytes/sec 5.0 to 80 Mbytes/sec On wide (16-bit) bus in LVD mode 5.0 to 80 Mbytes/sec 5.0 to 160 Mbytes/sec Sector Sizes: Default 512 byte user data blocks Variable 512 to 4,096 bytes per sector
