Linux 6.13 Rolling Out NVMe 2.1 Support & NVMe Rotational Media

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  • davidbepo
    replied
    Originally posted by kobblestown View Post

    (1) I don't think it necessarilly does. The SATA connector should be good for PCIe 3.0x1. However, this will probably not fly in consumer space because it may create confussion. Although, it should be possible to auto-detect and switch between both. However, this is not for consumer space anyway.

    (2) There are dual actuator drives that get very close to the SATA limit. Sure, SAS 12G can handle those but in the long run, NVME will probably be cheaper. And having to deal with a single technology will make it easier to mix and match different storage technologies over the same backplane/fabric.
    ok, fair enough

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  • davidbepo
    replied
    Originally posted by billyswong View Post

    There is a U.2 port+connector for NVMe devices not plugged into motherboards directly. The only issue is lack of drives using that port in the consumer market.
    i know about U.2 but thats a 2,5" form factor, and while such HDDs exist, they dont in capacities where its capacities where SSDs arent just better in every aspect

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  • Ademms
    replied
    I'm eager to see the performance improvements and compatibility enhancements that this kernel version brings.
    Have you tested any specific workloads or benchmarks to measure the impact of these changes?

    Leave a comment:


  • kobblestown
    replied
    Originally posted by davidbepo View Post
    (1) NVMe requires a new physical connector and form factor over SATA/SAS, also (2)wake me up when an HDD comes close to even touching sata limits, this is just nonsense
    (1) I don't think it necessarilly does. The SATA connector should be good for PCIe 3.0x1. However, this will probably not fly in consumer space because it may create confussion. Although, it should be possible to auto-detect and switch between both. However, this is not for consumer space anyway.

    (2) There are dual actuator drives that get very close to the SATA limit. Sure, SAS 12G can handle those but in the long run, NVME will probably be cheaper. And having to deal with a single technology will make it easier to mix and match different storage technologies over the same backplane/fabric.

    Leave a comment:


  • cl333r
    replied
    Originally posted by dlq84 View Post

    Why not? NVME support vastly more command queues and is both faster and more efficient over fiber channel. Just to name a couple of reasons.
    Yep, in fact I have a few PCs with floppy disks over NVMe and they now achieve similar speed to regular SATA HDDs, also, I have yet to test my vynil records over NVMe.

    Leave a comment:


  • billyswong
    replied
    Originally posted by davidbepo View Post
    man people here with the memes and missing the point so hard
    NVMe requires a new physical connector and form factor over SATA/SAS, also wake me up when an HDD comes close to even touching sata limits, this is just nonsense
    There is a U.2 port+connector for NVMe devices not plugged into motherboards directly. The only issue is lack of drives using that port in the consumer market.

    Leave a comment:


  • Teggs
    replied
    Originally posted by caligula View Post

    Moore's law. SATA3 is limited to 600 MB/s per drive. NVMe already supports PCIe 5.0 16x drives already transfer up to 63 GB/s and more is expected with PCIe 6.0. You just need to spin the motor a bit faster.
    Watch someone invent a mini-disc-sized platter that stores 100TB and spins like a bat out of hell.

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  • zboszor
    replied
    Originally posted by caligula View Post

    Moore's law. SATA3 is limited to 600 MB/s per drive. NVMe already supports PCIe 5.0 16x drives already transfer up to 63 GB/s and more is expected with PCIe 6.0. You just need to spin the motor a bit faster.
    That would risk exploding disks, like with those 52x or even higher speed CD players.

    I suspect it's about cutting a smaller disk to fit on the M.2 form factor. With the evolving magnetic density, you can still have a very high transfer rate and over 1TB capacities. A smaller radius disk reduces seek times, which was already exercised long time ago. Look up "short stroking hard disk".

    Leave a comment:


  • mobadboy
    replied
    support for offloading some host processing to NVMe storage devices
    waiting for the inevitable blocklist for misbehaving nvme drives that swallow data in some absurd way

    cant be bothered to check, but id be surprised if the infrastructure (or even the blocklist itself) arent already created.

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  • hajj_3
    replied
    Originally posted by ayumu View Post

    who's making HDDs that are this fast?
    there's an 18tb one that does 530mb/s, sata can only manage 550mb/s so we are near to being bottlenecked.

    Leave a comment:

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