The Cheetah 10K.7 lowers cost of ownership with the industry'shighest reliability, designed for full duty cycle applications; Seagate-exclusive Background Media Scan; enhanced Error Correction Code; and low power and cooling requirements. Capacities include 300, 146 and 73 Gbytes, with Ultra320 SCSI or 2 Gbit/sec Fibre Channel interfaces.
Features
Benefits
Highest Reliablity Rating
Reliability has a significant influence on a disc drive's total cost of ownership. Cheetah 10K.7 has an 0.62 percent AFR, the best in the industry.
Full Duty Cycle Reliability
The Cheetah 10K.7 is designed to have the highest reliability, even when in used in demanding applications around the clock, 365 days per year.
Background Media Scan
Background Media Scan, a Seagate-exclusive feature, scans the media during drive idle time to preserve system bandwidth while enabling incipient errors to be corrected before data is lost.
Enhanced Error Correction Code
Decreased bit error rate better maintains performance throughout the life of the drive and results in a lower probability of lost data.
Fluid Dynamic Bearing Motor
No ball bearings means reduced acoustics and improved reliability.
Low Power and Cooling Requirements
Further reduces cost of ownership
Distinctions
Cheetah 10K.7 is designed and manufactured by the same teams that delivered the past six award-winning generations of Cheetah.
Compatibility
This drive is compatible with and of our hot swap drive trays.
Specifications
ST-3146707LW Ultra320 SCSI Wide (Cheetah 10K.7, LVD)
ÉÍÍÍÍÍÍÍÍÍÍÍ»
º REAR VIEW º (ST-3146707LW 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-3146707LC 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-3146707LW only)
ÈÍÍÍÍÍÍÍÍÍÍͼ
FRONT TOP (HDA) J2 87654321 Õ͸
OF ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍ͵J1
DRIVE BOTTOM :::::::: Ô;
³³³³³³³³
Force SingAle-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-3146707LW/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 +A5v) ³³³ÀÄ ID 2
Reserved ÄÙ³ÀÄÄ ID 4
(pin-10 GND) ÀÄÄÄ ID 8
ST-3146707LW
Cheetah 10K.7
UNFORMATTED CAPACITY (GB) ________________
FORMATTED CAPACITY (GB) __________________146.8
AVERAGE SECTORS PER TRACK ________________789 rounded down
ACTUATOR TYPE ____________________________ROTARY VOICE COIL
TRACKS ___________________________________363,096
CYLINDERS ________________________________90,774 user
HEADS ______PHYSICAL______________________4
DISCS (2.5 in) ___________________________2
MEDIA TYPE _______________________________THIN FILM/GMR
RECORDING METHOD _________________________PRML
INTERNAL TRANSFER RATE (mbits/sec)________470 to 944
INTERNAL FORMATTED TRANSFER RATE (MB/sec)_59 to 118
EXTERNAL TRANSFER RATE (mbyte/sec) _______40 Sync
Low Voltage Differential(LVD) _______80/320 Sync
SPINDLE SPEED (RPM) ______________________10,008
AVERAGE LATENCY (mSEC) ___________________3.00
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 __________________________556K avg
SECTORS PER DRIVE ________________________286,749,488
TPI (TRACKS PER INCH) ____________________105,000
BPI (PEAK KBITS PER INCH) ________________658
AVERAGE ACCESS (ms read/write)____________4.7/5.3
Drive level without controller overhead
SINGLE TRACK SEEK (ms read/write) ________0.2/0.5
MAX FULL SEEK (ms read/write) ____________9.5/10.3
ANNUALIZED FAILURE RATE (AFR) ____________0.62%
SHOCK (G's, 11/2/.5 ms):
operating (Read/Write) ___A_______15/60/
abnormal ________________________40//
nonoperating ____________________75/225/120
ACOUSTICS (Bels typical, sound power) ____3.3
POWER DISSIPATION (watts/BTUs) Active ____/
Idle ______7.78/26.41
POWER REQUIREMENTS: +12V START-UP (amps) _1.89
+12V TYPICAL (amps) __0.42 idle
+5V START-UP (amps) __0.76
+5V TYPICAL (amps) ___0.54 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): 1.6/0.726
ZBR = Zone Bit Recording = Variable sectors per track
Seagate reserves the right to change, without notice, product
offerings or specifications. (04/14/2005)