Seagate has shown the industry’s to start with really hard disk drive related to a host applying a PCIe interface at the Open up Compute Project Summit. Like solid-point out drives, the experimental tricky drive takes advantage of the NVMe protocol to operate alongside SSDs seamlessly. Use of a solitary protocol for distinctive varieties of storage equipment will significantly simplify datacenters.
The experimental SSD is centered on Seagate’s proprietary controller that supports all three key protocols, which include SAS, SATA, and NVMe over a ‘native NVMe port,’ and does not call for any bridges. The HDD was demonstrated in a proof-of-concept 2U JBOD enclosure that made use of a comparatively simple PCIe switch connecting to 12 3.5-inch drives employing a PCIe interface.
Fashionable HDDs can hardly saturate even a one PCIe 2. link, but foreseeable future multi-actuator HDDs guarantee to be considerably more rapidly, so 6 Gbps provided by SATA or 12 Gbps made available by SAS could possibly not be adequate at some issue. To that conclusion, the field has to feel about potential interfaces to link difficult drives, and PCIe would seem like a normal alternative. Additionally, as SSDs are getting traction in datacenters, the NVMe protocol gets pervasive, so it tends to make feeling to undertake it for HDDs. This is why NVMe 2.0 adds challenging drive assistance.
Extra incentives for employing the identical bodily interface and logical protocol for HDDs and SSDs simplifying components and computer software for datacenters, which means streamlined characteristic improvement, much easier scaling, and lessened expense of ownership.
But adoption of PCIe-connected HDDs will get really some time. Seagate suggests that the first samples of PCIe/NVMe HDDs will be accessible to vital prospects in September 2022, just about a 12 months from now. Industrial PCIe/NVMe tricky drives will develop into offered only in mid-2024. For now, Seagate seems to place PCIe/NVMe HDDs principally for datacenters. However, the transition to a manufacturer-new interface and protocol is excellent for shopper PCs considering that it raises performance and simplifies architecture.
To place Seagate’s PCIe/NVMe HDD ideas into the context of the company’s roadmap, hope the 1st commercial difficult drives with a PCIe interconnection to use the firm’s heat-assisted magnetic recording know-how, benefit from 1 or two actuators, and attribute a ability concerning 30TB and 40TB.