Drive Specifications | www.seagate.com |
2.3Recording and interface technology
| ST33000651AS | ST32000641AS |
| | |
Interface | SATA | SATA |
| | |
Recording method | Perpendicular | Perpendicular |
| | |
Recording density (kbits/inch max) | 1941kb/in | 1721kb/in |
| | |
Track density (ktracks/inch avg) | 277 ktracks/in | 240 ktracks/in |
| | |
Areal density (Gbits/inch2 avg) | 488Gb/in2 | 347Gb/in2 |
Spindle speed (RPM) | 7200 + 0.2% | 7200 + 0.2% |
| | |
Internal data transfer rate | 1900Mb/s | 1300Mb/s |
(Mb/s max) | | |
| | |
Sustained data transfer rate | 149MB/s | 138MB/s |
(MB/s max) | | |
| | |
I/O data-transfer rate (MB/s max) | 600MB/s | 600MB/s |
| | |
2.4Physical characteristics
| ST33000651AS | ST32000641AS |
| | |
Maximum height | 26.1mm / 1.028 in | 26.1mm / 1.028 in |
| | |
Maximum width | 101.85mm / 4.010 in | 101.85mm / 4.010 in |
| | |
Maximum length | 146.99mm / 5.787 in | 146.99mm / 5.787 in |
| | |
Typical weight | 700g / 1.543 lb | 700g / 1.543 lb |
| | |
Cache buffer | 64MB (64,768kb) | 64MB (64,768kb) |
| | |
2.5 Start/stop times
| 3000GB | 2000GB |
| | |
Power-on to ready (s) max. | 18.0 | 15.0 |
| | |
Standby to ready (s) max. | 18.0 | 15.0 |
| | |
Ready to spindle stop (s) max. | 20.0 | 20.0 |
| | |
2.6Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 5 on page 24. Power consumption
Power requirements for the drives are listed in the table on page 9. Typical power measurements are based on an average of drives tested, under nominal conditions, using 5.0V and 12.0V input voltage at 25°C ambient temperature.
• Spinup power
Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating speed.
• Seek mode
During seek mode, the read/write actuator arm moves toward a specific position on the disk surface and does not execute a read or write operation. Servo electronics are active. Seek mode power represents the worst-
12 | Barracuda XT SATA Product Manual, Rev. D |
BarracudaXT
100586689 Rev. D September
Revision History
Revision Date Description of changes
Contents
Barracuda XT Sata Product Manual, Rev. D
Figures
Barracuda XT Sata Product Manual, Rev. D
Seagate Technology Support Services
Barracuda XT Sata Product Manual, Rev. D
Introduction
About the Serial ATA interface
Drive Specifications
LBA mode
Default logical geometry
Formatted capacity
Physical characteristics
Power specifications
Recording and interface technology
Start/stop times
Read/write power and current
Operating power and current
Idle mode power
Standby mode
Typical 5V startup and operation current profiles 3000GB
Typical 12V startup and operation current profiles 3000GB
Typical 5V startup and current profiles 2000GB
Typical 12V startup and current profiles 2000GB
Power management modes
Conducted noise
Voltage tolerance
Environmental specifications Ambient temperature
Temperature gradient
Humidity
Altitude
Shock
Vibration
Acoustics
Test for Prominent Discrete Tones PDTs
Electromagnetic immunity
Test Description Performance level Reference Standard
Warranty
Agency certification Safety certification
Electromagnetic Compatibility EMC
FCC verification
Environmental protection
China Restriction of Hazardous Substances RoHS Directive
Corrosive environment
Drive Specifications
Handling and static-discharge precautions
Configuring the drive
Serial ATA cables and connectors
Drive mounting
Attaching Sata cabling
Mounting dimensions 3000GB model
Mounting dimensions 2000GB model
3V power
Segment Pin Function Definition
Ground 2nd mate
3V power, pre-charge, 2nd mate
12V power, pre-charge, 2nd mate
12V power
P14
Supported ATA commands
Command name Command code in hex
Command name
Identify Device command
Word Description Value
Or Write Multiple command
Number of current logical heads
Number of current logical sectors per logical track
57-58 Current capacity in sectors
BE01H
00DEH
Fffeh
Bit Word
Set Features command
Enable read look-ahead read cache feature default
AAH
3 S.M.A.R.T. commands
Code in features register A.R.T. command
Master/slave 9 mounting
Barracuda XT Sata Product Manual, Rev. D
Barracuda XT Sata Product Manual, Rev. D
Barracuda XT Sata Product Manual, Rev. D
Barracuda XT Sata Product Manual, Rev. D
Page
Seagate Technology LLC
ASIA/PACIFIC