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ST41520N.TXT
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1994-02-11
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SEAGATE TECHNOLOGY, INC.
Customer Technical Support FAX Network +1 408 438-8137
Customer Technical Support Bulletin Boards (300-9600, 8-N-1)
⁄ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ¬ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒø
≥ United States +1 408 438-8771 ≥ United Kingdom +44 628 478011 ≥
√ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ≈ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ¥
≥ Germany +49 89 140-9331 ≥ Singapore +65 227-2217 ≥
¿ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ¡ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒŸ
(C)opyright 1991
ST-41520N (97501-16G) Elite-1 FH SCSI-2
÷ ƒ ƒ ƒ ƒ ƒ ∑ ⁄ƒƒƒƒƒƒƒƒƒ Parity DISable
∫ I/O Board ∫ ≥ ⁄ƒƒƒƒƒƒƒ Spinup Delay (10 sec)
” ƒ ƒ ƒ ƒ ƒ Ω ≥ ≥ ⁄ƒƒƒƒƒ Manual Reset
≥ ≥ ≥ ⁄ƒƒƒ Active LED (red)
⁄ƒƒ Spindle Sync ≥ ≥ ≥ ≥ ⁄ƒ Heartbeat LED (green)
A≥ SCSI ID ƒƒø ≥ ≥ ≥ ≥ ≥
1o-oø ’ÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕ∏ ≥ o o o
¥p n√ ≥::::::::::::::::::::::::1≥ ƒƒ¡ƒƒ o o o
≥o o≥ ‘ÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕæ o o o o
¿o-oŸ ⁄ƒƒƒƒƒƒƒƒƒƒ1 ⁄ƒƒƒƒƒƒƒƒƒƒ1 o o o o
o-o5 ¿ƒƒƒ≥ƒƒƒƒƒƒŸ ¿ƒƒƒ≥ƒƒƒƒƒƒŸ 4 2 1 ≥
≥B ¿ T-RES ¿ T-RES only on Motor Start ƒƒŸ
≥ 3o o4 Differential Enable
¿ƒƒ Select 2o≥o1
Plug ≥
≥ DC Power Connector J15
’ÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕœÕÕÕÕÕÕÕÕÕ∏ 0ƒ0ƒ0ƒ0ƒ0ƒ0ƒ0ƒ0ƒ0ƒ1
≥ Terminator Power Source Options ≥
√ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ¡ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒø
≥ 2 & 3 ƒ Host supplies power over the SCSI Bus for terminators. ≥
≥ Drive supplies no terminator power. ≥
≥ 1 & 2 ƒ Drive supplies power for its own terminator resistor-paks ≥
≥ but not to SCSI Bus. This is the factory setting. ≥
≥ 4 - Not used. ≥
¿ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒŸ
÷ ƒ ƒ ƒ ƒ ƒ ƒ ∑
∫ Servo Board ∫
” ƒ ƒ ƒ ƒ ƒ ƒ Ω
Fault LED (red) ƒƒƒƒƒƒø
Ready LED (green) ƒƒƒø ≥ DIP SWITCHES
Unit Selected (amber) ø ≥ ≥ S3 S2 S1
≥ ≥ ≥ ⁄ƒƒƒƒƒƒƒƒø⁄ƒƒƒƒƒƒƒƒø⁄ƒƒƒƒƒƒƒƒøOn
≥12345678≥≥12345678≥≥12345678≥
¿ƒƒƒƒƒƒƒƒŸ¿ƒƒƒƒƒƒƒƒŸ¿ƒƒƒƒƒƒƒƒŸOff
¿ƒƒƒƒƒƒƒƒ¬ƒƒƒƒƒƒŸ≥ ≥≥≥≥¿ƒ¬Ÿ
≥ ≥ ≥≥≥≥ ≥
Sector Switches (all OFF) ƒƒŸ ≥ ≥≥≥≥ ≥
Runt Sector ƒ8ƒƒƒƒƒƒƒƒŸ ≥≥≥≥ ≥
Sweep Cycle Enable ƒ1ƒƒƒƒƒƒƒƒƒƒƒŸ≥≥≥ ≥
Enable Sweep only on seeks ƒ2ƒƒƒƒƒƒƒƒƒƒƒƒŸ≥≥ ≥
Manufacturing Test (keep OFF) ƒ3ƒƒƒƒƒƒƒƒƒƒƒƒƒŸ≥ ≥
Write Enable (default ON) ƒ4ƒƒƒƒƒƒƒƒƒƒƒƒƒƒŸ ≥
Unit Select Switches (all OFF) ƒ6ƒ8ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒŸ
ST-41520N
Elite-1 FH
UNFORMATTED CAPACITY _____________________1,600,930,800
FORMATTED CAPACITY (xx SECTORS) __________1,370,545,152 **
AVERAGE SECTORS PER TRACK (with spares)___74.945
ACTUATOR TYPE ____________________________ROTARY VOICE COIL
TRACKS/USER ______________________________35,717/35,666
CYLINDERS/USER ___________________________2,101/2,098
HEADS ____________________________________17
DISCS ____________________________________10
MEDIA TYPE _______________________________THIN FILM
HEAD TYPE ________________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (2,7)
INTERNAL TRANSFER RATE (mbits/sec) _______26 to 36
EXTERNAL TRANSFER RATE (mbytes/sec) ______5
SPINDLE SPEED (RPM) ______________________5,400
AVERAGE LATENCY (mSEC) ___________________5.56
COMMAND OVERHEAD (msec) __________________<0.5
BUFFER ___________________________________256 Kbyte
Read Look-Ahead, Adaptive, Multi-Segmented
Cache
INTERFACE ________________________________SCSI-2
BYTES PER TRACK __________________________36,400 to 50,400
SECTORS PER DRIVE ________________________2,768,896
BYTES PER CYLINDER _______________________618,800 to 856,800
TPI (TRACKS PER INCH) ____________________
BPI (BITS PER INCH) ______________________
AREAL DENSITY ____________________________
AVERAGE ACCESS (ms) ______________________11.5
SINGLE TRACK SEEK (ms) ___________________1.7
MAX FULL SEEK (ms) _______________________22.5
MTBF (power-on hours) Class A Room _______250,000
MTBF (power-on hours) Office _____________150,000
POWER DISSIPATION (watts/BTU) ____________
POWER REQUIREMENTS: Single-ended/Differential
+12V START-UP (amps) _2.2/3.2
+12V TYPICAL (amps) __1.8/1.8
+5V START-UP (amps) __2.1/2.9
+5V TYPICAL (amps) ___2.0/2.3
TYPICAL (watts) ______31.6/33.1
MAXIMUM (watts) ______36.9/39.4
LANDING ZONE (cyl) _______________________AUTO PARK
USER MANUAL PART NUMBER __________________83327300
REFERENCE MANUAL PART NUMBER _____________86627310
IBM AT DRIVE TYPE ________________________0 or NONE
OTHER ____________________________________DUAL PORT
ZBR = Zone Bit Recording = Variable sectors per track
** Already low-level formatted at the factory with six spare sectors
per cylinder, one spare cylinders/unit, one system cylinder/unit, and
one diagnostic cylinder/unit.
Physical:
Height (inches/mm): 3.25/82.6
Width (inches/mm): 5.75/146.1
Depth (inches/mm): 9.9/252.5
Weight (lbs/kg): 9/4.1
Seagate reserves the right to change, without notice, product
offerings or specifications. (10/28/91)