Western Digital mass-produces 28TB hard drives
Western Digital mass-produces 28TB hard drives: Do you dare to get SMR shingled type?
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Western Digital mass-produces 28TB hard drives: Do you dare to get SMR shingled type?
News reported on November 17 that Western Digital’s three enterprise-class hard drives have made new progress: Ultrastar DC HD580 24TB has been shipped in batches, Ultrastra DC HD680 28TB has been put into mass production, and WD Gold 24TB has also been supplied.
The Ultrastar DC HC680 series previously had 26TB and 27TB models. The new 28TB model was sampled in August this year and has now entered mass production. They all use the popular SMR shingled magnetic recording.
Although shingled disks are frowned upon by ordinary consumers, Western Digital says they are rapidly gaining popularity in data centers, especially the 26TB model, which has accounted for half of the total capacity since it was shipped in the first quarter of this year.
The 28TB model uses 10 disks, with a single disk capacity of up to 2.8TB, a rotation speed of 7200RPM, a cache of 512MB, a stable transmission speed of only 265MB/s, and an average delay of 4.16ms.
The reliability index is exactly the same as that of traditional magnetic recording hard drives. It can operate 24×7 uninterruptedly, with a mean time between failures of 2.5 million hours, an annual failure rate of 0.35%, a maximum write volume of 550TB per year, and a 5-year warranty.
The maximum power consumption is 9.4W, standby is 5.5W, and power saving mode is 0.2W.
The Ultrastar DC HD580 24TB uses CMR traditional magnetic recording and is also installed in 10 discs. The capacity of a single disc has increased from the previous 2.2TB to 2.4TB.
The 7200RPM speed and 512MB cache are the same as the SMR 28TB, but the performance is much higher. The stable transfer speed can reach 298MB/s . The QD32 4KB random read and write speed is 212 IOPS and 565 IOPS respectively, and the QD4 4KB mixed read and write speed is 220 IOPS.
Reliability is the same as SMR 28TB, but the maximum power consumption is reduced to 8.5W , and the power saving mode is 0.23W.
WD Gold 24TB is also an enterprise-class hard drive with a 7200RPM speed and 512MB cache. The stable transfer speed has been increased from the previous 20/22TB 291MB to 298MB/s , and the maximum power consumption has been reduced from 7.1W to 6.8W.
Reliability also provides 2.5 million hours mean time between failures, 0.35% annual failure rate, and 5-year warranty.
The price is US$629.99.
