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The WD Caviar Black 2 TB
The WD Caviar Black 2 TB hard disk drive looks like any other 3.5" desktop hard drive, with a label on the top plate and an uncovered PCB on the underside.
The label has a lot of important information, like the hard drive model, capacity, cache size and even jumper settings. This is also where you look for the drive's serial number in case you need to RMA it. The label also has other interesting details like its date and place of manufacture. This particular drive was manufactured in Malaysia in August 2009.
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The underside is SOP for Western Digital - completely bare of any surface-mounted components.
Usable Capacity
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This Western Digital Caviar Black 2 TB drive officially has a formatted capacity of 2,000,398 MB. We checked that out by formatting both in NTFS using Windows Vista.
The actual formatted capacity was 2,000,396,742,656 bytes. This is slightly (~1.3 MB) lower than the official formatted capacity. With about 155 MB allocated to the NTFS file system, the actual usable capacity remained slightly above 2 TB.
Let's take a look at its specifications.
Specifications
Model |
• WD2001FASS |
Formatted Capacity |
• 2,000,398 MB |
Guaranteed Sectors |
• 3,907,029,168 |
Bytes Per Sector |
• 512 bytes |
Sectors Per Track |
• NA |
Cylinders |
• NA |
Platters |
• 4 Platters |
Read/Write Heads |
• 8 Read/Write Heads |
Recording Method |
• NA |
Interleave |
• 1 : 1 |
Spindle Speed |
• 7,200 RPM |
Cache Buffer |
• 64 MB SDRAM |
Internal Data Transfer Rate |
• 138 MB/s (sustained, maximum) |
Maximum I/O Transfer Rate |
• 3.0 Gbits/s |
Average Seek |
• 8.9 ms |
Average Latency |
• 4.2 ms |
Drive Ready Time |
• 21 seconds (average) |
Interface |
• Serial ATA 3 Gb/s |
Supported SATA Data Transfer Mode |
• 3.0 Gbits/s |
SATA Hotplug Capability |
• Yes |
Maximum Height |
• 26.1 mm (1.028 inches) |
Maximum Width |
• 101.6 mm (4.00 inches) |
Maximum Length |
• 147.0 mm (5.787 inches) |
Maximum Weight |
• 750 g (1.52 lbs) |
Power Requirements |
• +12V DC ± 10 % |
Power Consumption |
• 10.7 W (Read / Write) |
Ambient Temperature |
• 0 °C to 60 °C
(Operating) |
Maximum Shock |
• 65 G @ 2 ms (Read/Write) |
Drive Acoustics |
• 29 dBA average (Idle Mode) |
Non-Recoverable Read Errors |
• 1 error per 1014 bits read |
Load/Unload Cycles |
• 300,000 (minimum) |
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