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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)
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? United States +1 408 438-8771 ? United Kingdom +44 628 478011 ?
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? Germany +49 89 140-9331 ? Singapore +65 227-2217 ?
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(C)opyright 1991
ST-325N SCSI Interface
?J2 10-pin version (located
? on SIDE, near rear)
???????????????????????
?
1
(front) ? ? ? ? ? (back)
? ? ? ? ? 4-pin DC
??????????????????????????? SCSI Interface Power
1 2 4 ? P connector ??1?2?3?4??
??????? ? ? ??????????????????????????? ? 0 0 0 0 ?
? ? ? ?::::::::::::::::::::::::1? \12?G?G?5?/
? ? ? ?????????????P?W?A????????????????????????????
? ? ? ???????1 ???????1 ???????1
? ? ? ???????? ???????? ????????
? ? ? Termination Resistors
? ? ?
? ? ?? Parity Check Enable
? ????? Reserved
??????????? Drive ID's, ID 0 (none) for single drive system
ST - 325N
UNFORMATTED CAPACITY (MB) ________________25
FORMATTED CAPACITY (32 SECTORS) (MB) _____21.4
ACTUATOR TYPE ____________________________STEPPER
TRACKS ___________________________________1,308
CYLINDERS ________________________________654
HEADS ____________________________________2
DISCS ____________________________________1
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________RLL 2,7
INTERNAL TRANSFER RATE (mbits/sec) _______9.2
SPINDLE SPEED (RPM) ______________________3,600
AVERAGE LATENCY (mSEC) ___________________8.33
BUFFER ___________________________________2K or 8K
INTERFACE ________________________________SCSI
BYTES PER TRACK __________________________16,384
SECTORS PER DRIVE ________________________41,856
TPI (TRACKS PER INCH) ____________________1,015
BPI (BITS PER INCH) ______________________22,762
AVERAGE ACCESS (ms) ______________________28
SINGLE TRACK SEEK (ms) ___________________7
MTBF (power-on hours) ____________________50,000
POWER REQUIREMENTS: +12V START-UP (amps) _1.2
+5V TYPICAL (amps) ___0.26
POWER MANAGEMENT (Watts):
ACTIVE _______________7.0
IDLE _________________2.4
STANDBY ______________1.4
SLEEP ________________
BUFFERED STEP PULSE RATE (micro sec) _____
WRITE PRECOMP (cyl) ______________________N/A
REDUCED WRITE CURRENT (cyl) ______________N/A
LANDING ZONE (cyl)________________________AUTO PARK
IBM AT DRIVE TYPE ________________________0
Seagate reserves the right to change, without notice, product
offerings or specifications. (5/6/91)