上新地区ＸＸＸＸＸ
"Operating System Stated Capacity"
Lets be clear so maybe you can be clear in the next article.
The IEC, IEEE, CPIM, and NIST define Giga (G) as 1,000,000,000 or one billion.
The same standards organizations define Gibi (Gi) as 1,073,741,824.
As such, by standard definitions, these hard drives are in fact 1000GB, or 1000 gigabytes.
Your "Operating System Stated Capacity" really means "Windows Explorer Capacity". Other operating systems don't get it wrong like Windows does. So if you report this wrong
information at all, you should make the truth known -- that Windows is well known to WRONGLY report GiB as GB (and MiB for MB and so on).
Those drives have 1000 gigabytes of space. Windows Explorer and solid state memory companies report the space incorrectly.
一番下の【説明３】が判りやすい
【説明１】
Marvell Serial ATA Adapter
Integrated Sata device found
Port Multiplier found @ 0 0. Vendor: 11ab ports: 4
Device 0 @ 0 0 0:
Model: SAMSUNG HD103UJ Firm: 1AA01114 Ser#: S1B9J9AQC00304
Type: Hard Disk
Supports 48-bit addressing
Capacity: 953869.7 MB = 931.5 GB (1953525168 x 512)
953869.7 MB/1024 = 931.5 GB
【解説２】
Capacity
The HD103UJ that we're testing contains three 334 GB platters, a total of 1002 GB.
Things are different in practice, and after formatting the drive as an NTFS under Windows Vista, the actual capacity was 931.5
GB.
【解説３】
| Hard Drive Specifications | ||
| Seagate Barracuda 7200.11 1TB | Western Digital Caviar GP 1TB | |
| Manufacturer's Stated Capacity | 1000.2GB (1 Terabyte) | 1000.2GB (1 Terabyte) |
| Operating System Stated Capacity | 931.5 GB | 931.5 GB |
| Interface | SATA 3Gb/s | SATA 3Gb/s |
| Rotational Speed | 7,200 RPM | 5400-7200 RPM (variable) |
| Cache Size | 32 MB | 16 MB |
| Average Latency | 4.16ms (nominal) | 5.6ms (nominal) |
| Read Seek Time | 8.9ms | 8.9ms |
| Number of Heads | 8 | 8 |
| Number of Platters | 4 | 4 |
| Power Draw (Idle/Load) | 8W/12.0W | 4W/7.4 W |
| Command Queuing | Native Command Queuing | Native Command Queuing |
| Warranty | 5 Years | 3 Years |