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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)
??????????????????????????????????????????????????????????????????????
? United States +1 408 438-8771 ? United Kingdom +44 628 478011 ?
??????????????????????????????????????????????????????????????????????
? Germany +49 89 140-9331 ? Singapore +65 227-2217 ?
??????????????????????????????????????????????????????????????????????
(C)opyright 1991
ST-41520N (97501-16G) Elite-1 FH SCSI-2
? ? ? ? ? ? ? ?????????? Parity DISable
? I/O Board ? ? ???????? Spinup Delay (10 sec)
? ? ? ? ? ? ? ? ? ?????? Manual Reset
? ? ? ???? Active LED (red)
??? Spindle Sync ? ? ? ? ?? Heartbeat LED (green)
A? SCSI ID ??? ? ? ? ? ?
1o-o? ??????????????????????????? ? o o o
?p n? ?::::::::::::::::::::::::1? ????? o o o
?o o? ??????????????????????????? o o o o
?o-o? ???????????1 ???????????1 o o o o
o-o5 ???????????? ???????????? 4 2 1 ?
?B ? T-RES ? T-RES only on Motor Start ???
? 3o o4 Differential Enable
??? Select 2o?o1
Plug ?
? DC Power Connector J15
???????????????????????????????????? 0?0?0?0?0?0?0?0?0?1
? Terminator Power Source Options ?
????????????????????????????????????????????????????????????????????????
? 2 & 3 ? Host supplies power over the SCSI Bus for terminators. ?
? Drive supplies no terminator power. ?
? 1 & 2 ? Drive supplies power for its own terminator resistor-paks ?
? but not to SCSI Bus. This is the factory setting. ?
? 4 - Not used. ?
????????????????????????????????????????????????????????????????????????
? ? ? ? ? ? ? ?
? Servo Board ?
? ? ? ? ? ? ? ?
Fault LED (red) ???????
Ready LED (green) ???? ? DIP SWITCHES
Unit Selected (amber) ? ? ? S3 S2 S1
? ? ? ??????????????????????????????On
?12345678??12345678??12345678?
??????????????????????????????Off
?????????????????? ????????
? ? ???? ?
Sector Switches (all OFF) ??? ? ???? ?
Runt Sector ?8????????? ???? ?
Sweep Cycle Enable ?1??????????????? ?
Enable Sweep only on seeks ?2??????????????? ?
Manufacturing Test (keep OFF) ?3??????????????? ?
Write Enable (default ON) ?4??????????????? ?
Unit Select Switches (all OFF) ?6?8????????????????
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