Seagate demos hard disk drive with an NVMe interface. Yup, one with spinning platters – The Register

Finally week’s Open Compute Enterprise worldwide summit, Seagate demonstrated a mechanical exhausting disk drive with an NVMe interface – an interface usually reserved for SSDs. The clue Is true there Inside the identify: NVM, Non-Risk…….

Finally week’s Open Compute Enterprise worldwide summit, Seagate demonstrated a mechanical exhausting disk drive with an NVMe interface – an interface usually reserved for SSDs. The clue Is true there Inside the identify: NVM, Non-Risky Reminiscence. So The primary question is… why?

Properly, one purported set off is velocity. Whereas Seagate has been promising multi-actuator exhausting disks for about 4 years now, You proceed to Can’t buy them.

The althought is that by having two (or extra) separate arms scuttling independently Again and forth throughout the media, exhausting disks can run quick enough that current SATA interfaces will show to be a bottleneck. That is 6Gb/s for SATA revision 3, or 600MB/s Really, while NVMe maxes out at 20Gb/s.

We suspect The first set off is money, however there are two elements to that. It is not that NVMe is Low priceer per se. Firstly, although You should buy commodity 4TB SSDs now, An Low price one nonetheless prices round £300 They typically readily go to twice that a lot. That Sort of wonga will buy you 18TB of spinning disk. In completely different phrases, evaluating worth per unit storage, spinning rust Continues to be beneath 1 / 4 of The worth of flash media.

The second problem is that delivery mechanical disks with an NVMe interface will make it potential for distributors to ship servers with simply that interface Any longer, simplifying the design – Which suggests reducing The prices. All in all, NVMe HDDs with a quantity of actuators subsequently supply decrease TCO, Based mostly on Seagate.

It seems these models are As a Outcome of of ship To choose clients in 2022, it seems.

There’s nonetheless room for vital shifts Inside the Space for storing. Intel’s 3D Xpoint persistent-memory know-how has immense promise, Even when presently It is struggling On the market. This grade of non-volatile memory Might be utilized actually as memory – It’d be fitted Proper into a server’s DIMM slots, rendering off-board interfaces Similar to NVMe out of date. But There’ll nonetheless be A necessity For huge-performance sdecrease storage, which for the foreseeable means exhausting disks.

Having huge portions of non-volatile primary memory pulls the rug from beneath A lot of current axioms of OS design, and evaluation has barely begun ­– even earlier than distributors acquired chilly ft. However It’s going to come [PDF]. Watch this space. ®

Source: https://www.theregister.com/2021/11/17/seagate_nvme_drive/

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