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  • Hacker News
  • The specs look suspiciously like the Kioxia 245 TB SSD announced last year.

    https://www.storagereview.com/news/245tb-kioxia-lc9-ssd-sets...

    by burnt-resistor
  • “For AI workloads: The 245TB Micron 6600 ION provided up to 84 times better energy efficiency”

    How big of a deal is this part in relation to the initial upfront costs? I’m not privy to the cost of power for SSD

    by Aboutplants
  • A big consideration for efficiency and TCO calculations is the number of servers required to house the drives. NVMe drives tend not to be in external JBOF enclosures.

    Fewer servers means fewer cpus, less RAM, fewer fans, and maybe fewer switches.

    by mgerdts
  • It means you don't have as much to cool.

    Getting rid of 30 watts of heat is trivial compared to say, 300 (I don't quite know how to read that ratio since a 2.5kW SSD seems a little high to me).

    by XorNot
  • With a modern CPUs hitting 400W it's already a problem to fill a rack top down with servers like you could do before: too many heat to dissipate and transfer, too much power to provide in the first place.

    Just imagine something like 2S 9565 in at least 2U machines: with 10 server x 2U x 2 CPU you would have 8kW in the processors alone and you didn't even fill half of the 42U rack.

    https://www.amd.com/en/products/processors/server/epyc/9005-...

    by justsomehnguy
  • What is this thing that all pictures of new devices need to come with this black background?
    by zekrioca
  • Dark mode.
    by layer8
  • How much is it?
    by cammikebrown
  • ‘Contact us’
    by baq
  • If you have to ask...
    by ukuina
  • Likely $90k USD MSRP with a wholesale price around half that.

    Dell is getting first dibs.

    by burnt-resistor
  • 4-5x times what it would have been if not for the demand from AI. According to my rough calculation 4-8tb ssd drives were going to reach parity with hdd this year
    by xbmcuser
  • They haven't released details but I was able to find a Solidigm D5-P5336 122.88TB drive for around 40,000 USD, as a guideline. So ... more than that.
    by el_snark
  • The press release is missing the key specification — how many Libraries of Congress fit on this thing?
    by Spooky23
  • Usual estimate is 10TB of compressed text-only. So 24x LoC would fit on the drive.
    by mtmail
  • Access Denied

    You don't have permission to access

    "http://investors.micron.com/news-releases/news-release-detai..." on this server.

    High security on this press release.

    by esperent
  • No problems here ...
    by el_snark
  • even my AWS IP is let in without trouble
    by asimovDev
  • works for me. akamai doesn't like you
    by tjwebbnorfolk
  • Your IP address might be on a blocklist.
    by antonvs
  • The u.2 form factor is slightly larger than a 2.5" drive. I can imagine the entire space in it taken by Flash chips. I can't imagine what cooling scheme do they employ for the chips in the middle.
    by nine_k
  • Over the past few years the main improvement in SSD capacity has been due to them stacking an ever-increasing number of NAND layers in a single chip, with state-of-the-art SSDs already having over 300 layers.

    No need to worry about cooling when each layer in the sandwich is only a fraction of a micrometer thick!

    by crote
  • the u.2 form factor indeed evolved from chassis designs that were originally 2.5" drives. It's now kind of becoming obsolete with new designs using things like E1S, E1L (exactly the correct height to be slotted into a 1U server, it's like a slightly wider M.2, but meant to be insertable and removable), and E3S and E3L.

    Note that the 245TB is an E3L, the half size version of it come in smaller size.

    https://americas.kioxia.com/en-ca/business/ssd/solution/edsf...

    https://www.exxactcorp.com/blog/storage/edsff-e1s-e1l-e3s-e3...

    https://www.simms.co.uk/tech-talk/e1s-e1l-the-new-server-for...

    by walrus01
  • The transfer rates limit how much each chip can be active at any given time, so a heat-aware writing allocator can pick the least active blocks for the next writes and distribute the heat accordingly. Even if it’s not heat-aware, the tendency will be that the writes will be distributed over as many chips as there are, and so will be the heat generated.

    Now, I would LOVE to see this much SLC flash on a direct to bus attachment setting.

    by rbanffy
  • Apparently TDP is 30 watts¹, according to the product brief. I would imagine it's a single PCB with flash chips on both sides then thermally bonded to the aluminum chassis. That should keep all chips at approximately the same temperature. On its own it could be easily air cooled, but with 24 in a 2U chassis you'll be having some decently hefty forced air over the drives.

    1. For comparison, an HDD usually comes in around ~10 watts

    by MadnessASAP
  • The U.2 form factor is a 2.5" drive, not larger than it.

    "U.2" does not change anything in the mechanical characteristics of a 2.5" drive, it just replaces the SATA or SAS electrical interface with a NVMe electrical interface.

    You can mount a U.2 drive in any location intended for 2.5" drives, as long as its height can fit there.

    However, 2.5" drives come in various heights. Many laptops and mini-PCs that accept 2.5" drives accept only some of the smaller heights and they do not accept the greater heights, like 15 mm, which are typical for enterprise SSDs and HDDs, regardless whether they have a NVMe, i.e. U.2, or a SAS interface or a SATA interface.

    This new high-capacity U.2 SSD has the standard 15 mm height of the 2.5" form factor.

    by adrian_b
  • https://web.archive.org/web/20260505162256/https://investors...

    Rather silly of them to hide investor relations material behind an anonymity-hostile CDN.

    PDF for those who want it. https://web.archive.org/web/20260506084407if_/https://invest...

    by i_think_so
  • I look forward to have my favourite hyperscaler grant me 1000 "premium" IOPS per VM on this monster.
    by speedgoose
  • IOPS? This thing has slower IOPS than an old SATA SSD (~40k / QLC). I think it is meant for sequential operations only.
    by cm2187
  • I checked the specs here: https://www.micron.com/content/dam/micron/global/public/prod...

    The interface looks equiv to 4x PCIe 5.0.

        > Sequential read (MB/s): 13,700
    > Sequential write (MB/s): 2,700
    That is pretty awful write performance. Does anyone know more about this? I assume all of these hyperdense SSDs suffer from the same drawback. Also, I heard that the E3.L interface can support up to 16x lanes, but there are no practical commerical products at this point.
    by throwaway2037