WD hits 334GB per platter
High density hard drive platters to be used in one terabyte Caviar drives
Western Digital has become the latest storage vendor to reach an areal platter density of 334GB. Samsung was the first hard drive firm to reach this same density back in June 2007.
Areal density refers to the amount of data that can be stored on a storage medium, in this case the round platters that sit within a hard drive.
The new platters will initially be used in Western Digital's 1TB Caviar GP drives and will later filter through to the rest of the firm's hard disk lines. The lineup features 16MB of cache memory and uses the 3 Gbps SATA interface. The storage vendor claims this line of drives is also designed for reduced power consumption.
Increased areal density helps boost a hard drive's performance because data is packed more closely together, meaning the drive's read/write heads don't have to travel as much to read or store data. Larger platters also reduce the cost of the hard drive as a lesser number of platters are needed to reach the necessary capacity.