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Suzy B Software 2
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Suzy B Software CD-ROM 2 (1994).iso
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st11950n.txt
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1995-04-25
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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-11950N SCSI-2 Fast (Barracuda 1)
╔═══════════╗ J01─────┐ 1─┐ ───────J4-1──────────────┐
║ REAR VIEW ║ (see 1│┐ │"│ │
╚═══════════╝ below) └─┘ │"│ │
│"│J4 1-11 │
Terminating Resistors─┐ │"│(see detail below) │
┌──────┐ ┌────│─┐ │"│ │
(TOP) └──────1 └──────1 └"┘─J4-11┐ │
╒═════════════════════════╤/═════════\ │ │
═╡::::::::::::::::::::::::1╞│ 0 0 0 0 ╞═ │ │
╘══════════════════════│══╧└─5─G─G─12┘ │ 5 1
50 pin I/O Cable Connection─┘ : : : : : : : : : : :
│ │ │ │ │ │ │ │ 6 │ 2
SCSI ID = 0 (none) │ │ │ │ │ │ │ │ │ │ │
SCSI ID = 4 ───────┘ │ │ │ │ │ │ │ │ │ │
SCSI ID = 2 ─────────┘ │ │ │ │ │ │ │ │ │
SCSI ID = 1 ───────────┘ │ │ │ │ │ │ │ │
Reserved (default OFF) ────────┘ │ │ │ │ │ │ │
Parity Disable ──────────────────┘ │ │ │ │ │ │
Enable Motor Start ────────────────┘ │ │ │ │ │
Delay Motor Start (10 sec * ID) ─────┘ │ │ │ │
Write Protect Enable ──────────────────┘ │ │ │
Remote LED Connector ────────────────────┘ │ │
[pin-5 cathode (neg), pin-6 anode (pos)] │ │
Reserved (default OFF) ────────────────────┘ │
Spindle Synch Cable Connector ───────────────┘
(pin-1 SSREF, pin-2 ground)
┌────────────────────────────────┐
│ J01 - Terminator Power Jumpers ├──────────────────┐
└────────────────────────────────┘ │
Terminator power from the drive. ╓1──╖
(default) ╙°─°╜
° °
Terminator power from pin 26 on the ╓─╖
SCSI bus. °║°║
°╙°╜
Terminator to the SCSI bus on pin 26. ╓─╖
║°║°
╙°╜°
Terminator power to the SCSI bus and ╓─╥─╖
drive. ║°║°║
╙°╜°╨
Note: ST-11950ND (differential model) does not come with any
provision to use Termination resistors. Therefore, SCSI bus
needs to be externally terminated.
ST-11950N
UNFORMATTED CAPACITY (MB) ________________2030
FORMATTED CAPACITY (xx SECTORS) (MB) _____1689
AVERAGE SECTORS PER TRACK ________________81 rounded down
ACTUATOR TYPE ____________________________STRAIGHT ARM
TRACKS ___________________________________40,665
CYLINDERS ________________________________2,706 user
HEADS ______PHYSICAL______________________15
DISCS (3.5 in) ___________________________8
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (1,7)
TRANSFER RATE INTERNAL (mbits/sec)________34.3 to 56.5
SPINDLE SPEED (RPM) ______________________7,200
AVERAGE LATENCY (mSEC) ___________________4.17
BUFFER ___________________________________1024 KByte
Read Look-Ahead, Adaptive,
Multi-Segmented Cache
INTERFACE ________________________________SCSI-2 FAST
BYTES PER TRACK __________________________50,888 average
SECTORS PER DRIVE ________________________
TPI (TRACKS PER INCH) ____________________3,047
BPI (BITS PER INCH) ______________________52,187
AVERAGE ACCESS (ms) (read/write)__________8.0/9.0
Drive level without controller overhead
SINGLE TRACK SEEK (ms) ___________________0.6/0.9
MAX FULL SEEK (ms) _______________________20.0/21.0
MTBF (power-on hours) ____________________500,000
POWER REQUIREMENTS: +12V START-UP (amps) _2.18
+12V TYPICAL (amps) __0.83 idle
+5V START-UP (amps) __1.0
+5V TYPICAL (amps) ___0.76 idle
TYPICAL (watts) ______10.7
MAXIMUM (watts) ______
WRITE PRECOMP (cyl) ______________________N/A
REDUCED WRITE CURRENT (cyl) ______________N/A
LANDING ZONE (cyl) _______________________AUTO PARK
IBM AT DRIVE TYPE ________________________0 or NONE
Physical:
Height (inches/mm): 1.63/41.4
Width (inches/mm): 4.00/101.6
Depth (inches/mm): 5.97/146.1
Weight (lbs/kg): 1.8/0.80
Already low-level formatted at the factory with 6 spare sectors
per cylinder and 1 spare cylinder/unit.
ZBR = Zone Bit Recording = Variable sectors per track
Seagate reserves the right to change, without notice, product
offerings or specifications. (10/11/93)