Storage

Western Digital said at OCP Global Summit last week that over half of hard drives for data centers will use shingled magnetic recording (SMR) technology in 2023. At present Western Digital is the only supplier of SMR HDDs managed by hosts, but the technology is gaining support by hardware, software, and applications. SMR technology to boost capacity of hard drives fairly easily but at the cost of some performance trade-offs due to the read-modify-write cycle introduced by shingled tracks. Since operators of datacenters are interested in maximizing their storage capacities, they are inclined to invest in software that can mitigate peculiarities of SMR. As a result, several years after Western Digital introduced its first host-managed SMR HDDs, more and more companies are adopting them. Right...

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