WESTERN DIGITAL Ultrastar A7K3000 3TB HDD
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WESTERN DIGITAL Ultrastar A7K3000 3TB HDD
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Grensesnitt
Serial ATA III
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Kapasitet
3TB
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Rotasjonshastighet
7200RPM
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Beskrivelse
Spesifikasjoner
Ekspertomtaler
Ultrastar 7K3000
2TB & 3TB
3.5-INCH ENTERPRISE HARD DRIVE
- Industry-leading Reliability – First 7200 RPM rated at 2M hour MTBF
- Colossal Capacity – Up to 3TB for capacity-optimized enterprise applications
- Configuration Choice – SATA and SAS models
The Hitachi Ultrastar™ 7K3000 is the world’s first and only 7200 RPM hard drive rated at 2.0 million hours MTBF and backed by a five-year limited warranty. The Ultrastar 7K3000 represents the fifth-generation Hitachi 5-platter mechanical design, first introduced in 2004, and has been field proven by top server and storage OEMs as well as leading Internet giants. When the highest quality and reliability are a top requirement, customer field data proves that the Ultrastar 7K3000 delivers by reducing downtime, eliminating service calls and keeping TCO to a minimum. Engineered for the highest reliability, the Ultrastar 7K3000 is not only put through grueling design tests during development but must also pass stringent ongoing reliability testing during manufacturing. Across the entire Ultrastar family, world-class quality control, combined with scientific root-cause analysis and multi-faceted corrective actions, ensure that Hitachi GST remains the recognized leader in quality and reliability for enterprise-class hard drives.
| Model(s) |
SATA models
HUA723030ALA640
HUA723030ALA641
HUA723020ALA640
HUA723020ALA641
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SAS models
HUS723030ALS640
HUS723030ALS641
HUS723020ALS640
HUS723020ALS641
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| Interface |
SATA 6Gb/s |
SAS 6Gb/s |
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| Capacity (GB) |
3TB / 2TB |
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| Sector size (variable, Bytes/sector) |
512 |
512 / 520 / 528 |
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| Max areal density (Gbits/sq. in.) |
369 / 360 |
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| Performance |
| Data buffer (MB) |
64 |
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| Rotational Speed (RPM) |
7200 |
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| Interface transfer rate (MB/sec, max) |
600 |
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| Sustained transfer rate (MB/sec, typ.) |
152 |
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| Seek Time (read, ms, typical) |
8.2 |
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| Reliability |
| Error Rate (non-recoverable, bits read) |
1 in 1015 |
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| MTBF (M hours) |
2.0 |
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| Load/Unload Cycles |
600,000 |
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| Availability (hrs/day x days/wk) |
24x7 |
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| Acoustics |
| Seek (Bels, typical) |
2.9 |
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| Power |
| Requirement |
+5 VDC (+/-5%)
+12 VDC (+10%/-8%) |
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| Requirement: Start-up (W, peak, max) |
1.2 (+12V), 2.0 (+5V) |
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| Requirement: Read/Write (W, avg) |
11.3 |
12.3 |
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| Unload idle (W) |
5.6 |
6.6 |
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| Physical size |
| Z-height (mm) |
26.1 |
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| Dimensions (width x depth, mm) |
101.6 (+/-0.25) x 147 |
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| Weight (g, max) |
690 |
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| Environmental (operating) |
| Ambient temperature |
5º to 60º C |
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| Shock (half-sine wave) |
70 |
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| Vibration (5 to 500 Hz) |
0.67 (XYZ) |
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| Environmental (non-operating) |
| Ambient temperature |
-40º to 70º C |
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| Shock (half-sine wave) |
300 |
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| Intern harddisk | 3000 GB |
| Vertsgrensesnitt | SATA |
| Harddiskhastighet | 7200 RPM |
| Harddiskstørrelse | 3.5" |
| Bufferstørrelse | 64 MB |
| Gjennomsnittlig søketid for harddisk | 8,2 ms |
| Driftstemperaturområde | 5 - 60 °C |
| Oppbevaringstemperaturomåde (Celsius) | -40 - 70 °C |
| Bredde | 101,6 mm |
| Høyde | 26,1 mm |
| Dybde | 147 mm |
| Vekt | 690 g |
| Harddisk overføringshastighet | 600 Mbit/s |
| Intern | Ja |
| USB-strøm | Nei |
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