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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-42000N Elite 2 Fast SCSI-2
-
- ┌─ This T-RES only on Differential model
- │ (see below for T-RES descriptions)
- Spindle Sync ┐ │ ┌─ Terminator Power Source (see below)──┐
- ┌4──1──┐ ┌──*───1 4o│o3 ┌──────1 │
- p│o oo A └─│────┘ 2o o1 └──│───┘ │
- o o o o o n│o oo B └Terminator DIPS┘ Power o o o o │
- o o o o o └──────┘╒═════════════════════════╕ ┌12─G─G─5─┐ o o o o │
- ═╪═╪═╪═╪═╪══P═W═A═══╡::::::::::::::::::::::::1╞══╡ 0 0 0 0 ╞═╪═╪═╪═╪══ │
- 4 2 1 │ │ ╘═════════════════════════╛ \─────────/ │ │ │ │ │
- ──┬── │ │ SCSI Cable Connector │ │ │ │ │
- │ │ │ │ │ │ │ │
- │ │ └── Master off/Slave on - Spindle Sync │ │ │ │ │
- │ └──── Write Protect option enable │ │ │ │ │
- └──────── SCSI ID │ │ │ │ │
- Spinup Delay (10 secs * ID) ─┘ │ │ │ │
- Motor Start option enable ───┘ │ │ │
- Parity check DISable ─────┘ │ │
- Sweep Cycle enable ───────┘ │
- │
- ╒══════════════════════════════════╕ │
- │ Terminator Power Source Options ├────────────────────────────────────────┘
- ├──────────────────────────────────┴───────────────────────────────────┐
- │ 2 & 4 ─ Initiator 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. │
- │ 1 & 3 │
- │ AND ─ Drive supplies power fpr external terminator at end of the │
- │ 2 & 4 daisy chain. Terminator resistor-paks must be removed. │
- │ This option is recommended only for last drive on daisy │
- │ chain. (This option only on Single-Ended drives) │
- └──────────────────────────────────────────────────────────────────────┘
- T-RES descriptions: ST42000N 2 SIPs
- ST42000ND 2 DIPs
-
-
- ST-42000N
- Elite 2
-
- UNFORMATTED CAPACITY _____________________2,106,263,040
- FORMATTED CAPACITY (512 byte blk) ________1,792,111,616
- AVERAGE SECTORS PER TRACK ________________83
- ACTUATOR TYPE ____________________________STRAIGHT ARM
- TRACKS ___________________________________41,984
- CYLINDERS ________________________________2,627/2,624 (user)
- HEADS ____________________________________16
- DISCS (5.25 in) __________________________9
- MEDIA TYPE _______________________________THIN FILM
- HEAD TYPE ________________________________THIN FILM
- RECORDING METHOD _________________________ZBR RLL (2,7)
- INTERNAL TRANSFER RATE (mbits/sec) _______30-40
- EXTERNAL TRANSFER RATE (mbyte/sec) _______10 (burst)
- SPINDLE SPEED (RPM) ______________________5,400
- AVERAGE LATENCY (mSEC) ___________________5.55
- COMMAND OVERHEAD (mSEC) __________________<0.5
- BUFFER ___________________________________256 Kbyte
- Read Look-Ahead, Adaptive, Multi-Segmented
- Cache
- INTERFACE ________________________________SCSI-2 FAST
- BYTES PER TRACK __________________________42,000-55,440
- SECTORS PER DRIVE ________________________3,500,218
- BYTES PER CYLINDER _______________________672,000-887,040
- TPI (TRACKS PER INCH) ____________________2,250
- BPI (BITS PER INCH) ______________________41,713
- AVERAGE ACCESS (ms) ______________________11
- 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 REQUIREMENTS: Single ended/Differential
- +12V START-UP (amps) _4.6/4.6
- +12V TYPICAL (amps) __2.0/2.0
- +5V START-UP (amps) __2.3/2.6
- +5V TYPICAL (amps) ___2.3/2.6
- TYPICAL (watts) ______29.9/31.8
- MAXIMUM (watts) ______33.7/36.6
- WRITE PRECOMP (cyl) ______________________N/A
- REDUCED WRITE CURRENT (cyl) ______________N/A
- LANDING ZONE (cyl) _______________________Auto
- USER MANUAL PART NUMBER __________________
- OTHER ____________________________________
- Synchronized Spindles, Sweep Cycle Capability
-
- ZBR = Zone Bit Recording = Variable sectors per track
-
- ** Already low-level formatted at the factory with six spare sectors
- per cylinder, one spare cylinders/unit, one system cylinder/unit, and
- one diagnostic cylinder/unit.
-
- Physical:
- Height (inches/mm): 3.25/82.6
- Width (inches/mm): 5.75/146.1
- Depth (inches/mm): 8.0/203
- Weight (lbs/kg): 7.8/3.6
-
-
- Seagate reserves the right to change, without notice, product
- offerings or specifications. (12/14/92)
-