Western Digital confirmed in a press release that it has begun to prototype 18TB and 20TB of mechanical hard drives. Of these, 18TB is still used for CMR, or vertical magnetic record, while 20TB is SMR, stacked magnetic record. Western Digital said both hard drives were helium-filled, nine-disc, and were deployed on the data center platform with a decrease in overall energy consumption, cooling costs, and rack occupancy compared to 14TB CMR drives.
At present, the samples are available to the western data of the super customers, ordinary consumers can not get.
According to Western Digital, the 18TB Ultrastar DC HC550 CMR hard drive and the 20TB Ultrastar DC HC650 SMR hard drive are scheduled to produce large quantities of goods in the second half of next year. Interestmays may wish to pay attention to the evaluation at that time, to understand their performance, especially the continuous performance of the often criticized SMR models.