ST-32550N SCSI-2 Fast (Barracuda 2LP)
Digital Manual Pictures
+===========+
# REAR VIEW # (ST-32550N/ND)
+===========+
50 pin I/O Cable Connection
|
#========================1# /---------\ TOP (HDA)
=#:::::::::::::::::::::::::#=| 0 0 0 0 |==
\=========================/ \-5-G-G-12/ BOTTOM
(o o) - These pins not on differential
/------ o o model ND
| o o
| 2 1
|
/- J1 Terminator options -+- (single-ended) -----------\
| o o (o o) o o o o #o=o# |
| o o o#o# #o#o #o=o# o o |
| #o=o# o|o| |o|o |o|o| o o |
| 2===1 2 \=1 2=/ 1 2=#=1 2 1 |
| A B C D E |
\------------------------------------------------------/
A - Term. power from drive (default)
B - Term. power to SCSI bus (only option available for differential ND)
C - Term. power from SCSI bus
D - Term. power to SCSI bus and drive
E - Enable SCSI terminator (jumper on pins 5-6)
+=================+
# RIGHT SIDE VIEW # (ST-32550N)
+=================+
BACK #=# J2 123456789 TOP (HDA) FRONT
OF I/O#======================P=W=A======================= OF
DRIVE \=/ ::::::::: BOTTOM DRIVE
|||||||||
1-2 Reserved --+/||||\++-- Reserved 7-9
3 Parity Disable ----/||\----- Delay Motor Start 6
4 Write Protect -----/\------ Motor Start Enable 5
+============+
# FRONT VIEW # (ST-32550N)
+============+
J4
TOP (HDA) 1
==P=W=A=====================#::::::::::#==
BOTTOM ||||||||||
||||||||||
Reserved -+++/|||||\- Reserved
ID 4 -----/|||\-- Remote LED (pin-3 +5v)
ID 2 ------/|\--- Spindle Synchronization
ID 1 -------/ (pin-6 REF SIG+, default
jumper installed)
ST-32550N
Barracuda 2LP
UNFORMATTED CAPACITY (MB) ________________2541.3
FORMATTED CAPACITY (xx SECTORS) (MB) _____2147.4
AVERAGE SECTORS PER TRACK ________________108 rounded down
ACTUATOR TYPE ____________________________ROTARY VOICE COIL
TRACKS ___________________________________38,610
CYLINDERS ________________________________3,510 user
HEADS ______PHYSICAL______________________11
DISCS (3.5 in) ___________________________6
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (1,7)
INTERNAL TRANSFER RATE (mbits/sec)________49.4 to 72.0
EXTERNAL TRANSFER RATE (mbyte/sec) _______5 Async
EXTERNAL TRANSFER RATE (mbyte/sec) _______2.5 to 10 Sync
SPINDLE SPEED (RPM) ______________________7,200
AVERAGE LATENCY (mSEC) ___________________4.17
BUFFER ___________________________________512 KByte
Read Look-Ahead, Adaptive,
Multi-Segmented Cache
INTERFACE ________________________________SCSI-2 FAST
ASA II
BYTES PER TRACK __________________________64,160 average
SECTORS PER DRIVE ________________________
TPI (TRACKS PER INCH) ____________________4,048
BPI (BITS PER INCH) ______________________72,680
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) _______________________17/19
MTBF (power-on hours) ____________________800,000
SHOCK (G's):
operating (Read/Write) __________2
nonoperating ____________________50
ACOUSTICS (typ/max dBA) __________________4.7/
POWER REQUIREMENTS: +12V START-UP (amps) _1.26
+12V TYPICAL (amps) __0.88 idle
+5V START-UP (amps) __0.91
+5V TYPICAL (amps) ___0.33 idle
IDLE (watts) _________
LANDING ZONE (cyl) _______________________AUTO PARK
IBM AT DRIVE TYPE ________________________0 or NONE
Physical:
Height (inches/mm): 1.00/25.4
Width (inches/mm): 4.00/101.6
Depth (inches/mm): 5.75/146.05
Weight (lbs/g): 1.2/545
Already low-level formatted at the factory with 9 spare sectors
per cylinder and 1 spare cylinder per unit.
ZBR = Zone Bit Recording = Variable sectors per track
Seagate reserves the right to change, without notice, product
offerings or specifications. (08/25/94)