| General |
Capacity |
4 TB (4000 GB) |
Also available in 6TB and 8TB (HC320). |
|
Form Factor |
3.5-inch |
Standard LFF (Large Form Factor) HDD. |
|
Recording Technology |
CMR (Conventional Magnetic Recording) |
Uses traditional, non-overlapping tracks; best for general-purpose workloads, including high-traffic RAID. |
| Performance |
Spindle Speed |
7200 RPM |
Fast rotational speed for enterprise-level access. |
|
Data Buffer (Cache) |
256 MB |
Standard cache size for this capacity tier. |
|
Max Sustained Transfer Rate |
Up to $255 \text{ MB/s}$ |
Excellent sequential throughput for an air-filled drive. |
|
Average Latency |
$4.16 \text{ ms}$ |
Time for the spindle to rotate to the data sector. |
|
Average Seek Time (Read) |
$8.0 \text{ ms}$ |
Average time to position the head. |
| Connectivity |
Interface Options |
SATA $6 \text{ Gb/s}$ or SAS $12 \text{ Gb/s}$ |
Two primary versions are sold to match host controller capabilities. |
|
Bytes per Sector |
$512 \text{ e}$ (Emulated) |
Supports 512-byte sector emulation on a 4K physical sector drive (Advanced Format). A native $512 \text{ n}$ option is also available for legacy systems. |
| Reliability & Power |
MTBF |
$2.0 \text{ Million hours}$ |
Mean Time Between Failures—a high enterprise-grade reliability rating. |
|
Workload Rating |
$550 \text{ TB/year}$ |
Up to 10 times the rating of typical desktop drives, engineered for 24×7 use. |
|
Power Consumption (Idle) |
$\approx 5.9 \text{ W}$ (SATA) / $\approx 7.0 \text{ W}$ (SAS) |
Efficient for continuous data center operation. |
|
Load/Unload Cycles |
600,000 |
The expected number of times the head can be safely parked and deployed. |
|
Warranty |
5 Years Limited |
Standard enterprise warranty period. |
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