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ST325N.TXT
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1992-04-17
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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-325N SCSI Interface
≥J2 10-pin version (located
≥ on SIDE, near rear)
¿ƒƒƒƒƒ¬ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ
≥
1
(front) ¯ ¯ ¯ ¯ fl (back)
¯ ¯ ¯ ¯ ¯ 4-pin DC
ÕÕÕÕ՜՗ÕÕ—ÕÕ—ÕÕ—ÕÕ—ÕÕÕÕÕÕÕ SCSI Interface Power
1 2 4 ≥ P connector ⁄ƒ1ƒ2ƒ3ƒ4ƒø
¿ƒƒ≈ƒƒŸ ≥ ≥ ’ÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕ∏ ≥ 0 0 0 0 ≥
≥ ≥ ≥ ≥::::::::::::::::::::::::1≥ \12ƒGƒGƒ5ƒ/
≥ ≥ ≥ ÕÕÕÕÕÕœÕÕÕÕÕÕPÕWÕAÕÕÕÕÕÕÕÕÕÕÕÕÕÕœÕÕÕÕÕÕÕÕÕÕÕÕÕ
≥ ≥ ≥ ⁄ƒƒƒƒƒƒ1 ⁄ƒƒƒƒƒƒ1 ⁄ƒƒƒƒƒƒ1
≥ ≥ ≥ ¿ƒƒƒƒƒƒŸ ¿ƒƒƒƒƒƒŸ ¿ƒƒƒƒƒƒŸ
≥ ≥ ≥ Termination Resistors
≥ ≥ ≥
≥ ≥ ¿ƒ Parity Check Enable
≥ ¿ƒƒƒƒ Reserved
¿ƒƒƒƒƒƒƒƒƒƒ 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)