User manual HITACHI 0663 ENHANCED DATASHEET

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Manual abstract: user guide HITACHI 0663ENHANCED DATASHEET

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[. . . ] 3 1/2-INCH RUGGED REMOVABLE DISK DRIVES 0661-467R 0663-L12R, E15R ______________ OEM OFFERINGS FROM IBM The OEM versions of IBM* 3 1/2-inch rugged removable disk drives with the Enhanced Small Computer System Interface (SCSI-2), feature compact size, superior data integrity, and exceptional performance. [. . . ] A high level of circuit integration and skillful enclosure design ensure high reliability. In addition to meeting MIL-STD-810 functional shock and crash safety, the disks are designed to exceed bench handling requirements for greater safety when removed. They can survive 2500 Gs of shock when non-operational. Adding the optional vibration isolation cradle allows them to operate through random vibration profiles ranging from ground mobile (2 Grms) to booster launch (17 Grms). TECHNOLOGY LEADERSHIP Over the last 20 years, IBM has developed, adapted and shipped a number of magnetic storage devices for use in severe environments. Typical of these products are the magnetic drum used on the S-3A/B and E-3A AWACS aircraft, the RD-281 Navy Standard Disk, the 8-inch RASS and SUB/RASS disks and rugged 2 1/2-inch disks. Now IBM is offering these 3 1/2-inch hermetically sealed drives to the OEM market for use in harsh environments. HIGHLIGHTS - 400, 1004 and 1206 MB formatted capacities - SCSI-2 interface Self diagnostics Dedicated head landing zone Dedicated digital servo Mounting in any orientation 1:1 Interleave Up to 256 KB dual-ported data buffer Automatic actuator lock Cylinder oriented sectoring Extended temperature range operation Extended humidity range operation Extended altitude range operation Exceeds MIL-STD-810 bench handling Operation with sand and dust Operation in salt fog Compact, light removable disk unit PRODUCT DESCRIPTION ______________________________________________________________________________ _ 3 1/2" Rugged Removable 0661-467R 0663-L12R 0663-E15R Disk Drives ______________________________________________________________________________ _ Configuration Formatted Capacities (MB) 400 1004 1206 Data Buffer Size (KB) 128 256 256 Sectors per Track 48 66 66 User Cylinders 1199 2051 2463 User Tracks 16786 30765 36945 Data Heads 14 15 15 Disks 8 8 8 Rotational Speed (RPM) 4316 4316 4316 Recording Density RLL (BPI) 38427 58874 58874 Track Density (TPI) 1469 2238 2685 Areal Density (Mb/sq in) 56. 4 131. 8 158. 1 Media Transfer Rate (MB/s) 2 3 3 Interface Transfer Rate (MB/s) 5 5 10 Average Latency (ms) 6. 95 6. 95 6. 95 Average Access Time (ms) 11. 5 11. 0 9. 8 Trk/Trk Read Access (ms) 1. 0 0. 6 0. 6 Maximum Access (ms) 20 18. 5 18. 5 ______________________________________________________________________________ _ Reliability MTBF per MIL-HDBK-217E > 50000 Hours > 75000 Hours > 75000 Hours Hard Read Error Rate < 1x10 to < 1x10 to < 1x10 to the 12th the 13th the 14th Seek Error Rate < 1x10 to < 1x10 to < 1x10 to the 6th the 6th the 7th ______________________________________________________________________________ _ Power Voltages (plus or minus 5%) +5 and +12 V +5 and +12 V +5 and +12 V Heat Dissipation (W) 12. 8 12. 5 12. 1 ______________________________________________________________________________ _ All Models ______________________________________________________________________________ _ Environment Operating Ambient Temperature -20 to +71 degrees C (with heater) -55 to +71 degrees C Non-Operating Ambient Temperature -55 to +85 degrees C Seal Leak Rate < 1 x 10 to the 6th cc/sec Humidity 0% to 100% Altitude (with cooling) Unlimited Operating Shock 20 G, 11 ms Non-Operating Shock 2500 G Operating Random Vibration Ground Mobile, 2 Grms (when isolated) Fighter aircraft, 14 Grms Helicopter, 5 Grms Booster Launch, 17 Grms (response curves available) Static Inclination No Restriction Salt Fog 5% concentration for 48 hours Sand and Dust Exposure to Sand/Dust Particles __________________________________________________________________________ Physical Size Length 2. 3 in Height 4. 8 in Width 7. 7 in Weight 3. 95 lb ______________________________________________________________________________ _ Diskfile specifications subject to change without notice. [. . . ] Copywrite International Business Machines Corporation 1994 * IBM is a trademark of International Business Machines Corporation. [. . . ]

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