bottom line: WD recently announced a range of storage products, and the 26TB Ultrastar DC HC670 and 22TB DC HC570 lead the way when it comes to hard drive storage and storage density. Meanwhile, the upcoming Ultrastar 15.36TB DC SN650 NVMe SSD is approaching the slower media capacity advantage. These drives are currently being tested with select WD customers and will be available in the coming months.
WD has included many storage technologies in what it He speaks are the world’s first 22TB CMR-based and 26TB SMR-based hard drives. The latest, denser model is capable of storing 2.6 terabytes of data per platter, while the previous version of the CMR can store 2.2 terabytes on each of 10 stacked platters.
In addition to direct capacity, these gel drives also feature WD ArmorCache technology, which aims to combine the performance benefits of enable write cache with data protection in the disable write cache state. They achieve this with the OptiNAND technology previously seen in the 20TB WD ePMR drive.
Faster, higher-capacity UFS storage onboard the drive allows all data in the DRAM cache to be written to non-volatile memory in the event of a power outage, delivering up to 40 percent higher IOPS performance compared to non-OptiNAND drives with 256KB and larger files and a peak 80- percentage improvement at 1MB transfer size during random write.
What’s more, ArmorCache is said to improve overall performance as the drive doesn’t require time-consuming data integrity checks after a reboot and can quickly resume normal write operations. WD says this technology can also help companies reduce UPS/battery costs, as it is designed to ensure that cache data is successfully written in the event of a power loss.
The third Ultrastar-branded drive is the TLC-based DC SN650, a high-capacity 15.36TB PCIe 4.0 NVMe SSD for enterprise customers who require higher-quality, low-latency storage with much higher bandwidth than HDDs.
WD did not share data on drive performance, but marked that the SSD, which samples are currently in testing, will be available in the second quarter of 2022 in the thinner E1.L size for servers, as well as the regular 2.5-inch form factor. The aforementioned hard drives are also being tested with selected customers and are expected to go on sale this summer.
Meanwhile, small businesses and home NAS users will also soon be able to purchase 22TB drives with the release of WD Purple Pro (video/surveillance), Red Pro (NAS), and Gold (enterprise) hard drives.
Pricing for these CMR drives has yet to be announced, but potential buyers can expect the total cost per gigabyte to continue its downward trend. like WD recently announced focused on Black SN850X gaming and P40 SSDs, these drives will start shipping in the summer.
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