=============================================================================== MAXTOR 7213S SCSI DRIVE =============================================================================== KEY FEATURES: * 15ms average seek * 64K on-board cache * Low power consumption * Zone density recording * 1:1 interleave * Dual drive master/slave support * Rotary voice coil * Automatic actuator lock * Single-sided surface mount PCBA SPECIFICATIONS: Formatted: ................................. 245,583,872 Bytes Embedded Controller: ....................... SCSI Actuator type: ............................. Voice Coil Number of Disks: ........................... 2 Data Surfaces: ............................. 4 Data Heads: ................................ 4 Servo: ..................................... Embedded Tracks per surface: ........................ 1,944 Track Density (average): ................... 2,340 tpi Bytes per Block: ........................... 512 Sectors per track (5 Zones): ............... 48-72 PERFORMANCE (Average): Seek times* (ms) Track to track: ....................... 3 Average: .............................. 15 ** Maximum: .............................. 27 Average latency (ms) ....................... 8.45 Rotation speed ............................. 3,551 RPM Controller overhead ........................ 1 ms Data transfer rate (Mbytes per sec) To/from media ......................... 2.83 To/from interface (SCSI) .............. 10.0 Start time / power up (0-3,551 RPM) Typical ............................... 6 sec Stop time / power down Typical ............................... 3 sec Start/stop cycles .......................... 40,000 average Interleave: ................................ 1:1 Buffer Size: ............................... 64K Interface: ................................. SCSI Recording Method: .......................... 1,7 RLL Recording Density (Kbpi) ................... 42.6 maximum Flux Density (Kfci) ........................ 31.9 maximum POWER REQUIRMENTS (Average): Mode +12VDC ±8% +5VDC ±5% Power/Duration Spin Up 820mA 330mA <10ms R/W 135mA 325mA 3.25 W Idle 135mA 315mA 3.15 W PHYSICAL: Height: 1.00" (2.54 cm) Length: 5.75" (14.61 cm) Width: 4.00" (10.16 cm) Weight: 1.2 lbs. (.57 kg) ENVIRONMENTAL: Temperature Operating .............................. 5°C to 50°C Non-operating .......................... Low temperature (-40°C) per MIL-STD-810E, Method 502.3 High temperature per MIL-STD-810E, Method 501.3 Hot induced conditions. Thermal gradient ....................... 20°C per hour max Humidity Operating .............................. Per MIL-STD-810E, Method 507.3 Procedure I, Natural Cycle 3 Non-operating & storage ................ Per MIL-STD-810E, Method 507.3 Procedure IIb, Induced cycle 5 Altitude (relative to sea level) Operating .............................. -200 to 10,000 feet Non-operating .......................... Per MIL-STD-810E, Method 500.3 Low pressure (Altitude) procedure I, Storage, test condition 2 RELIABILITY & MAINTENANCE MTBF ....................................... >150,000 POH (Power On Hours) *1 AFR ........................................ 1.7% (Annualized Failure Rate)*2 Component design life ...................... 5 years (minimum) *3 Quality Acceptance Rate .................... 99.8% (2,000DPPM) *4 Preventive Maintenance ..................... None Data reliability ........................... <10 per 10 to the 13th bits read (hard read errors) Shock & Vibration (average) Shock measured a half-sine pulse. Vibration measured at swept sine, 1 octave per minute. Non-operating shock .................... 70 Gs, 11 ms Operating shock ........................ 15 Gs, 11 ms (w/o non-recoverable errors) Non-operating vibration Per MIL-STD-810E, Method 514.4, Basic transportation vertical axis PSD profile, 10-500 Hz, 60 Min/Axis. Operating, ramdom vibration 5 - 20 Hz ......................... 0.049" (double amplitude) 20 - 300 Hz ........................ 1.5G Peak amplitude Acoustic Noise (typical) Sound power ......................... 3.9 belA (per ISO 7779) Sound pressure ...................... 33 dBA * At nominal DC input voltages. ** The average of 10,000 random seek times (measured on independent. test equipment) constitutes the average seek time specification. *1 Annualized average applicable only to the time period after installation to the end of the specified Component Design Life. assumed POH/year is 2,000 hours. *2 Annualized average applicable only to the time period after final installation to the end of the specified Component Design Life. *3 The period of the before identified wear-out mechanisms will impact the annual failure rate. *4 Average defects per million rate is measured by our customers through their final installation. Based on failures that are verified as chargeable to Maxtor. *5 Maxtor defines a megabyte as 1,000,000. 7245A and 7245S are registered trademarks of Maxtor Corporation. AT is a registered trademark of IBM Corporation. Specifications subject to change without notice. Copyright 1993 Maxtor Corporation. ==============================================================================