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All Seagate SCSI 3_30_94
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ST11900W.TXT
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1994-02-16
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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 1993
ST-11900W SCSI-2 Fast
…ÕÕÕÕÕÕÕÕÕÕÕª
∫ REAR VIEW ∫ (ST-11900W/WD only)
»ÕÕÕÕÕÕÕÕÕÕÕº
(TOP) Auxiliary
___________________ ⁄ƒƒ ƒ1ø/ÕÕÕÕÕÕÕÕÕ\
Õ( ◊◊◊◊◊◊◊◊◊◊◊◊◊◊◊◊◊1)Õ≥::::::≥≥ 0 0 0 0 ΔÕ
\ƒƒƒƒƒƒƒƒƒƒƒƒ≥ƒƒƒƒ/ ¿ ƒƒ Ÿ¿ƒ5ƒGƒGƒ12Ÿ
68 pin I/O CableŸ ≥≥≥≥≥≥
≥≥≥≥≥≥
≥≥≥≥≥≥
≥≥≥≥≥≥
Auxiliary option header ≥≥≥≥≥≥
pin-11 +5v ƒƒƒƒƒƒƒƒƒŸ≥≥≥≥≥
pin-10 GND ƒƒƒƒƒƒƒƒƒƒŸ≥≥≥≥
SCSI ID = 8 ƒƒƒƒƒƒƒƒƒƒƒŸ≥≥≥
SCSI ID = 4 ƒƒƒƒƒƒƒƒƒƒƒƒ¥≥≥
or pin-6 REFIND+ ƒƒƒƒƒƒŸ≥≥
SCSI ID = 2 ƒƒƒƒƒƒƒƒƒƒƒƒƒŸ≥
SCSI ID = 1 ƒƒƒƒƒƒƒƒƒƒƒƒƒƒŸ
SCSI ID = 0 (none)
…ÕÕÕÕÕÕÕÕÕÕÕª
∫ REAR VIEW ∫ (ST-11900WC only)
»ÕÕÕÕÕÕÕÕÕÕÕº
80 pin I/O and DC Power Wall/bracket Connection
≥ Female
J1 /ƒƒƒƒ≥ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ\ TOP (HDA)
ÕÕÕÕÕÕÕÕÕÕ/ ◊◊◊◊◊◊◊◊◊◊◊◊◊◊◊◊◊◊◊◊ \ÕÕÕÕÕÕÕÕÕÕ
(\ƒ1ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ40/) BOTTOM
Notes on 80 pin I/O connector:
pins 1 - 4 = +12v 41 - 44 = 12v GND
34 - 36 = +5v 74 - 76 = 5v GND
37 = SYNC 77 = LEDC
38 = MTRON 78 = DLYDST
39 = SCSIA0 79 = SCSIA1
40 = SCSIA2 80 = SCSIA3
Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin
2-557101-1 right angle to PCB
…ÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕª
∫ RIGHT SIDE VIEW ∫ (Both ST-11900W and ST-11900WC)
»ÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕº
BACK ’Õ∏ J2 12345678 TOP (HDA) FRONT
OF J1ΔÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕPÕWÕAÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕ OF
DRIVE ‘Õæ :::::::: BOTTOM DRIVE
≥≥≥≥≥≥≥≥
≥Terminator Power Ÿ≥≥≥≥≥≥¿ Reserved
⁄¥Terminator Power ƒŸ≥≥≥≥¿ƒ Start Delay (12 secs * ID)
≥ Enable T-Res ƒƒŸ≥≥¿ƒƒ Motor Start
≥ Parity Enable ƒƒƒŸ¿ƒƒƒ Write Protect
≥
≥
≥ ⁄ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒø
¿ƒ¥ Termination Power-source Table ≥
√ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ¡ƒƒƒƒƒƒƒƒƒƒƒƒƒø
≥ÕÕÕÕÕ....ÕÕÕÕÕ....ÕÕÕÕÕPWA edgeÕÕÕÕÕ ≥
≥ ≥
≥ 1 2 1 2 1 2 ≥
≥ ÷ƒ∑ ÷ƒ∑ A Drive Supplies Bus ≥
≥ ∫¯∫¯ ¯∫¯∫ ÷¯ƒ¯∑ B Drive Supplies Own ≥
≥ ”¯Ω¯ ¯”¯Ω ”¯ ¯Ω C Bus Supplies Drive ≥
≥ A B C ≥
¿ƒƒƒƒƒƒƒƒƒDefaultƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒŸ
Note: The model ST-11900WC drive cannot furnish terminator power,
because no pins on the 80 pin I/O connector are devoted to terminator
power.
…ÕÕÕÕÕÕÕÕÕÕÕÕª
∫ FRONT VIEW ∫ (Both ST-11900W and ST-11900WC)
»ÕÕÕÕÕÕÕÕÕÕÕÕº
TOP (HDA) J6 ’ÕÕÕÕÕ1∏
ÕÕPÕWÕAÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕµ::::::ΔÕ
* BOTTOM ‘ÕÕÕÕÕÕæ
≥ ≥≥≥≥≥≥
LED ƒŸ ≥≥≥≥≥≥
≥≥≥≥≥≥
≥≥≥≥≥≥
Auxiliary option header ≥≥≥≥≥≥
pin-11 +5v ƒƒƒƒƒƒƒƒƒŸ≥≥≥≥≥
pin-10 GND ƒƒƒƒƒƒƒƒƒƒŸ≥≥≥≥
SCSI ID = 8 ƒƒƒƒƒƒƒ¬ƒƒƒŸ≥≥≥
or pin-8 BUSY ƒƒƒƒŸ ≥≥≥
SCSI ID = 4 ƒƒƒƒƒƒƒ¬ƒƒƒƒŸ≥≥
or pin-6 REFIND+ ƒŸ ≥≥
SCSI ID = 2 ƒƒƒƒƒƒƒƒƒƒƒƒƒŸ≥
SCSI ID = 1 ƒƒƒƒƒƒƒƒƒƒƒƒƒƒŸ
SCSI ID = 0 (none)
If these ID jumper are used, then
ID jumpers shown in left side view J5
or 80 pin I/O cable ARE NOT USED.
ST-11900W
UNFORMATTED CAPACITY (MB) ________________2003
FORMATTED CAPACITY (xx SECTORS) (MB) _____1700
AVERAGE SECTORS PER TRACK ________________83 rounded down
ACTUATOR TYPE ____________________________ROTARY VOICE COIL
TRACKS ___________________________________39,315
CYLINDERS ________________________________2,621 user
HEADS ______PHYSICAL______________________15
DISCS (3.5 in) ___________________________8
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (1,7)
TRANSFER RATE INTERNAL (mbits/sec)________26.8 to 45.6
SPINDLE SPEED (RPM) ______________________5,411
AVERAGE LATENCY (mSEC) ___________________5.54
BUFFER ___________________________________256/1024 KByte
Read Look-Ahead, Adaptive,
Multi-Segmented Cache
INTERFACE ________________________________SCSI-2 FAST WIDE
SECTORS PER DRIVE ________________________
TPI (TRACKS PER INCH) ____________________3000
AVERAGE ACCESS (ms) (read/write)__________9.0/10.5
Drive level without controller overhead
SINGLE TRACK SEEK (ms) ___________________1
MAX FULL SEEK (ms) _______________________19
MTBF (power-on hours) ____________________500,000
POWER REQUIREMENTS: +12V START-UP (amps) _2.0
+12V TYPICAL (amps) __0.54
+5V START-UP (amps) __0.8
+5V TYPICAL (amps) ___0.43
TYPICAL (watts) ______9
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): 5.75/146.1
Weight (lbs/kg): 2.5/0.99
Already low-level formatted at the factory with six spare sectors
per cylinder and two spare cylinders/unit.
ZBR = Zone Bit Recording = Variable sectors per track
Seagate reserves the right to change, without notice, product
offerings or specifications. (12/15/93)