|
| |
ST-157N SCSI
/---+
| O |12
| O |G
| O |G
| O |5
SCSI Connector \---+
-----P-W-A---+-------------------------+--------
o o o o o |::::::::::::::::::::::::1|
o o o o o +-------------------------+
4 2 1 | P +------1+------1+------1
--+-- | | +------++------++------+
| | | + Resistor Termination Packs
| | |
| | +- Parity Check enable
| +--- Not Used
+------- Drive ID's, ID 0 (none) for single drive system
ST - 157N
UNFORMATTED CAPACITY (MB) ________________57
FORMATTED CAPACITY (26 SECTORS) (MB) _____48.6
ACTUATOR TYPE ____________________________STEPPER
TRACKS ___________________________________3,678
CYLINDERS ________________________________615
HEADS ____________________________________6
DISCS ____________________________________3
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________RLL (2,7)
TRANSFER RATE (mbits/sec) ________________7.5
SPINDLE SPEED (RPM) ______________________3,600
AVERAGE LATENCY (mSEC) ___________________8.3
BUFFER ___________________________________2 Kbyte
INTERFACE ________________________________SCSI
SECTORS PER DRIVE ________________________94,860
TPI (TRACKS PER INCH) ____________________824
BPI (BITS PER INCH) ______________________22,430
AVERAGE ACCESS (ms) ______________________40/28*
SINGLE TRACK SEEK (ms) ___________________8
MAX FULL SEEK (ms) _______________________ /70
MTBF (power-on hours) ____________________150,000
POWER REQUIREMENTS: +12V START-UP (amps) _2.0
+12V TYPICAL (amps) __0.35
+5V TYPICAL (amps) ___0.9
TYPICAL (watts) ______9
MAXIMUM (watts) ______29
BUFFERED STEP PULSE RATE (micro sec) _____3-200
WRITE PRECOMP (cyl) ______________________N/A (616)
REDUCED WRITE CURRENT (cyl) ______________N/A (616)
LANDING ZONE (cyl)________________________AUTO PARK
IBM AT DRIVE TYPE ________________________0 or NONE
*ST157N-0/ST157N-1
Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90) |