Toshiba XM-6401B, Спецификация

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XM-6401B Rev.1.0
3.5. Reliabilities
3.5.1. Error Rate
(1) Hard Read Error Rate (Byte Error Rate) ----- Allowing 5 Retries -----
Mode 1: 10
-15
Max
Mode 2: 10
-12
Max
(2) Seek Error Rate --- Allowing 5 Retries 10
-6
Max
3.5.2. MTBF 100,000 h
Assumptions Power On Hours 5,436 h/year
On/Off Cycles 313 cycles/year
Number of Access 600,000 accesses/year
Operating Duty Cycle 20 % of Power On Time
(Reading/Seeking)
3.5.3. MTTR 0.5 h
3.5.4. Drive Life 15,000 h or 5 years (earlier one)
(1) Load/Eject 10,000 times or more
(2) Interface connector Attach/Detach 20 times or more
(3) DC Power connector Attach/Detach 20 times or more
4. Configuration
See Figure 3 for details of the configurations
4.1. Electrical Circuits
(1) Optical Pickup and RF Amplifier Circuit
(2) Motor Drive Circuit
(3) EFM Demodulator and Error Correction Circuit
(System Control Circuit, Digital to Analog Converter)
(4) SCSI Control and CD - ROM Error Correction Circuit and SCSI I/O Interface Circuit
(5) System Control Circuit
4.2. Optical Pickup Semiconductor Laser and 3-beam System
4.3. Spindle Motor Brushless DC Motor
4.4. Feed Motor DC Motor
4.5. Load/Eject Motor DC Motor