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Seagate ST373454LC SCSI Hard Drive
Item Number: SGT-ST373454LC-BN-OE-DEL
Manufacturer's Part Number: ST373454LC |
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Seagate Cheetah 15K.4 73GB 15K U320 80pin SCA-2 SCSI Hard Drive ST373454LC - Brand New OEM
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Capacity: 73GB
Spindle Speed: 15,000RPM
Interface Type: SCSI 80pin SCA-2 (Hot-Swap)
Disk Size: 3.5"x1.0" (Low Profile Hard Drive)
Sustained Throughput (MBps): 58 to 96
Average Seek Time (read/write ms): 3.5 / 4.0
Electrical Interface Speed: SCSI LVD U320 - 320MBps 16-bit
On-Board Cache: 8MB |
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These drives will work in any of our drive trays: |
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The Cheetah 15K.4 is the best
performance, lowest cost of ownership, 3.5-inch disc drive. It enables
higher performance with fewer drives, while offering the industry's
highest reliability. |
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Features |
Benefits |
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15K RPM spindle speed
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Delivers more I/O's per second than
10K, and faster sustained transfer rates, enabling the same high performance
to be met with fewer drives.
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Ultra320 SCSI
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Up to 320 Mbyte-per-second throughput
and faster sustained transfer rate
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Background Media Scan
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Proactively scans the media for potential
defects during drive idle time without using system bandwidth. It
enables incipient errors to be corrected before data is lost.
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Enhanced Error Correction Code
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Better maintains performance throughout
the life of the drive and reduces the probability of lost data.
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Fluid Dynamic Bearing Motor
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No ball bearings means reduced acoustics
and improved reliability.
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Full Duty Cycle Reliability
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The Cheetah 15K.4 is designed to have
the highest reliability, even when in used in demanding applications
around the clock, 365 days per year.
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Distinctions
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30% more IOPS and more than 20% faster response times than 3.5-inch
10K drives
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The industry's highest reliability, with 1,400,000 hour MTBF
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Compatibility
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SEAGATE TECHNOLOGY LLC
1-800-SEAGATE
http://www.seagate.com
(C)opyright 2005
ST-373454LW Ultra320 SCSI Wide (Cheetah 15K.4, LVD)
ÉÍÍÍÍÍÍÍÍÍÍÍ»
º REAR VIEW º (ST-373454LW only)
ÈÍÍÍÍÍÍÍÍÍÍͼ
(TOP) J5 Auxiliary
___________________ ÚÄÄ Ä1¿/ÍÍÍÍÍÍÍÍÍ\
Í( ×××××××××××××××××1)ͳ::::::³³ 0 0 0 0 ÆÍ
\ÄÄÄÄÄÄÄÄÄÄÄijÄÄÄÄ/ À ÄÄ 2ÙÀÄ5ÄGÄGÄ12Ù
68 pin I/O CableÙ ³³³³³³
Connection Male ³³³³³³ SCSI ID = 0 (none)
³³³³³ÀÄÄ SCSI ID = 1
pin-11 +5v ÄÄÙ³³³ÀÄÄÄ SCSI ID = 2
pin-10 GND ÄÄÄÙ³ÀÄÄÄÄ SCSI ID = 4
ÃÄÄÄÄÄ SCSI ID = 8
pins 9 & 12 no connection ÀÄÄÄÄÄÄ or pin-8 Activity LED*
* These pins are driven low for 250ms after PWR ON and RESET
to allow jumper selectable SCSI ID as shown above.
ÉÍÍÍÍÍÍÍÍÍÍÍ»
º REAR VIEW º (ST-373454LC only)
ÈÍÍÍÍÍÍÍÍÍÍͼ
80 pin I/O and DC Power Wall/bracket Connection
³ Female
J1 /ÄÄÄijÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\ TOP (HDA)
ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ
(\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/) 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 connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin
2-557101-1 right angle to PCB
ÉÍÍÍÍÍÍÍÍÍÍÍ»
º SIDE VIEW º (ST-373454LW only)
ÈÍÍÍÍÍÍÍÍÍÍͼ
FRONT TOP (HDA) J2 87654321 Õ͸
OF ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍ͵J1
DRIVE BOTTOM :::::::: Ô;
³³³³³³³³
Force Single-ended (LVD models only) ÄÙ³³³³³³À Term Power (LW only)¿
Start Delay (12 secs * ID) ÄÄÙ³³³³ÀÄ Reserved ³
Motor Start ÄÄÄÙ³³ÀÄÄ Reserved ³
Write Protect ÄÄÄÄÙÀÄÄÄ Parity Disable ³
³
³
ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿ ³
³ Termination Power-source Table ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ
ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄ¿
³ ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ ³
³ 2 1 ³
³ A Drive Supplies Bus ÖÄ· ³
³ øºøº ³
³ (not used on LC model) øÓø½ ³
³ A ³
ÀÄÄÄÄÄÄÄÄÄDefault no jumper ÄÄÄÄÄÄÄÄÄÄÄÙ
Note: LW and LC drives do not have internal terminators or
any other way of adding internal terminators to the
drive; use external active termination if required.
Use active (ANSI SCSI-2 Alternative 2) terminators
when terminating the bus. Use active negation
terminators when terminating a SCSI Ultra2 bus
operating in Low Voltage Differential (LVD) mode.
ÉÍÍÍÍÍÍÍÍÍÍÍÍ»
º FRONT VIEW º (ST-373454LW/LC)
ÈÍÍÍÍÍÍÍÍÍÍÍͼ
ÚÄÄ´Reserved. Shipped with cover installed.
³ ÀDo not remove. Do not install jumpers
TOP (HDA) ÕØÍÍ͸ 1
ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ͵::::³::::::ÆÍÍ
* BOTTOM ÔÍÍÍ;123456
³ J6 ³³³³³³
LED ÄÙ ³³³³³³
Remote LED Ù³³³³À ID 1
(pin-11 +5v) ³³³ÀÄ ID 2
Reserved ÄÙ³ÀÄÄ ID 4
(pin-10 GND) ÀÄÄÄ ID 8
ST-373454LW
Cheetah 15K.4
UNFORMATTED CAPACITY (GB) ________________
FORMATTED CAPACITY (GB) __________________73.4
AVERAGE SECTORS PER TRACK ________________704 rounded down
ACTUATOR TYPE ____________________________ROTARY VOICE COIL
TRACKS ___________________________________203,456
CYLINDERS ________________________________50,864 user
HEADS ______PHYSICAL______________________4
DISCS (2.5 in) ___________________________2
MEDIA TYPE _______________________________THIN FILM/GMR
RECORDING METHOD _________________________PRML
INTERNAL TRANSFER RATE (mbits/sec)________685 to 1142
INTERNAL FORMATTED TRANSFER RATE (MB/sec)_58 to 96
EXTERNAL TRANSFER RATE (mbyte/sec) _______40 Sync
Low Voltage Differential(LVD) _______80/320 Sync
SPINDLE SPEED (RPM) ______________________15,000
AVERAGE LATENCY (mSEC) ___________________2.00
BUFFER ___________________________________8MB
Read Look-Ahead, Adaptive,
Multi-Segmented Cache
INTERFACE ________________________________Ultra-SCSI Wide
Low Voltage Differential __________Ultra3-SCSI Wide
ASA II, SCAM level 2 (1 default)
BYTES PER TRACK __________________________471K avg
SECTORS PER DRIVE ________________________143,374,744
TPI (TRACKS PER INCH) ____________________85,000
BPI (PEAK KBITS PER INCH) ________________628
AVERAGE ACCESS (ms read/write)____________3.5/4.0
Drive level without controller overhead
SINGLE TRACK SEEK (ms read/write) ________0.27/0.45
MAX FULL SEEK (ms read/write) ____________7.4/7.9
MTBF (power-on hours) ____________________1,400,000
SHOCK (G's, 11/2/.5 ms):
operating (Read/Write) __________15/60/
abnormal ________________________40//
nonoperating ____________________75/250/120
ACOUSTICS (Bels typical, sound power) ____3.6
POWER DISSIPATION (watts/BTUs) Active ____/
Idle ______9.47/32.31
POWER REQUIREMENTS: +12V START-UP (amps) _1.85
+12V TYPICAL (amps) __0.56 idle
+5V START-UP (amps) __0.77
+5V TYPICAL (amps) ___0.55 idle
IDLE (watts) _________
Physical:
Height (inches/mm): 1.0/25.4
Width (inches/mm): 4.00/101.6
Depth (inches/mm): 5.75/146
Weight (lbs/kg): 1.6/0.73
ZBR = Zone Bit Recording = Variable sectors per track
Seagate reserves the right to change, without notice, product
offerings or specifications. (04/21/2005)
Click here to view the manufacturers item description/brochure |
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