4/14/2023 0 Comments Hard west switch reviewIncreasing data storage capacity per square meter and without an increase in power consumption is tremendously important for Western Digital’s hyperscale clients, so expect the company to sell a boatload of new hard drives. The new HDDs will enable such companies to store up to 4320 TB of data in a single standard rack (240 drives) at the same power. Operators of hyperscale datacenters will appreciate a massive 29% capacity increase of the Ultrastar DC HC550 TB hard drive versus its 14 TB predecessor. Meanwhile, its IOPS/TB performance is somewhat lower when compared to previous-generation models, so users of these HDDs will have to mitigate it somehow to ensure their QoS and other requirements. The SATA versions consume 5.6 W in idle, whereas SAS models consume 5.8 W in idle (same as the Ultrastar DC HC530 (opens in new tab)), thus decreasing per terabyte power consumption by 21% when compared to 14 TB HDDs.įrom performance point of view, the Ultrastar DC HC550 18 TB offers up to a roughly 270 MB/s sustained transfer rate, which makes it one of the fastest hard drives on the market. In addition, the devices feature vibration and environmental sensors. The HDDs are equipped with a 7200-RPM motor that is attached both to bottom and top of the drive for enhanced reliability, a 512 MB cache buffer, and a SATA 6 Gbps or a SAS 12 Gbps interface. Other characteristics of Western Digital’s Ultrastar DC HC550 (opens in new tab) products are fairly typical for nearline hard drives designed for 24/7 operation at an up to 550 TB/year workload.
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