Описание
The HGST 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 HGST 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 HGST remains the recognized leader in quality and reliability for enterprise-class hard drives.
| Model | HUS723020ALS640 |
| Interface | SAS 6Gb/s |
| Capacity (GB) | 2TB |
| Sector size (variable, Bytes/sector) | 512 / 520 / 528 |
| Max areal density (Gbits/sq. in.) | 369 / 360 |
| Performance | |
| Data buffer (MB) | 64 |
| Rotational Speed (RPM) | 7200 |
| Interface transfer rate (MB/sec, max) | 600 |
| Sustained transfer rate (MB/sec, typ.) | 152 |
| Seek Time (read, ms, typical) | 8.2 |
| Reliability | |
| Error Rate (non-recoverable, bits read) | 1 in 1015 |
| MTBF (M hours) | 2 |
| Load/Unload Cycles | 600,000 |
| Availability (hrs/day x days/wk) | 24x7 |
| Acoustics | |
| Seek (Bels, typical) | 2.9 |
| Power | |
| Requirement | +5 VDC (+/-5%) |
| +12 VDC (+10%/-8%) | |
| Requirement: Start-up (W, peak, max) | 0.56A (+5V), 1.81A (+12V) |
| Requirement: Read/Write (W, avg) | 10.4 |
| Unload idle (W) | 6.1 |
| Physical size | |
| Z-height (mm) | 26.1 |
| Dimensions (width x depth, mm) | 101.6 (+/-0.25) x 147 |
| Weight (g, max) | 690 |
| Environmental (operating) | |
| Ambient temperature | 5º to 60º C |
| Shock (half-sine wave) | 70 |
| Vibration (5 to 500 Hz) | 0.67 (XYZ) |
| Environmental (non-operating) | |
| Ambient temperature | -40º to 70º C |
| Shock (half-sine wave) | 300 |
1 Intended for use in lower duty cycle environments in the enterprise storage hierarchy such as nearline applications. This MTBF rating is based on a sample population and is estimated by statistical measurements and acceleration algorithms under nominal operating conditions. MTBF ratings are not intended to predict an individual drive’s reliability. MTBF does not constitute a warranty.
2 One GB is equal to one billion bytes and one TB equals 1,000GB (one trillion bytes) when referring to hard drive capacity. Accessible capacity will vary from the stated capacity due to formatting and partitioning of the hard drive, the computer’s operating system, and other factors.
3 Portion of buffer capacity used for firmware. 4 Excludes command overhead
Highlights
• 2.0 million hours MTBF
• Up to 3 terabytes of capacity
• 6Gb/s SATA and 6Gb/s SAS models for configuration flexibility
• Dual Stage Actuator (DSA) and Enhanced Rotational Vibration Safeguard (RVS) for robust performance in multi-drive environments
• 24x7 accessibility for enterprise-class, capacity-optimized applications
• 5-year limited warranty
Applications / Environments
• Cloud storage
• Massive Scale Out (MSO)
• Decision support & RAID
• Data warehousing & mining
• Disk-to-disk backup & archiving
• RAID arrays
• Network Attached Storage (NAS)