Date: Wed, 10 Jun 2020 00:16:35 -0300 From: Anatoli <me@anatoli.ws> To: dwilde1@gmail.com, freebsd-questions@freebsd.org Subject: Re: Optane Memory Message-ID: <8c86c841-1ef1-b1b5-11c8-80a552a6a24d@anatoli.ws> In-Reply-To: <CAEC7393kKzKCoBMWi3Wv6y5oUj5Q0H-WTu9XV9MurszQ_jejTg@mail.gmail.com> References: <20200608152724.00002f13@seibercom.net> <CAEC7392RjTmg7x5_yYxAyPe-t%2B0dpngoBO_HxOSq8SWw7ru_iw@mail.gmail.com> <CAEC7393kKzKCoBMWi3Wv6y5oUj5Q0H-WTu9XV9MurszQ_jejTg@mail.gmail.com>
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Why would you chose Intel? AMD EPYC 2 clearly is a better option performance/price & energy wise. We're evaluating to purchase right now these ones: [1] with Micron 9300 Pro & Max for storage. Next month they start shipping a 2U version with 24 U.2 disks. Note: these servers connect the disks at PCIe Gen4, not Gen3 as all others, with 4 PCI lanes per each U.2 disk, i.e. 8GB/s (64Gbps) for each disk. Right now there are not many PCIe-4 disks available, but next year they should be a commodity. On the other hand, how would you be using the Optane DDR? It looks like it gets about 2M IOPS, when Micron 9300 gets 850K IOPS. At the same time Micron costs $185/1Tb [2] and Optane DDR costs about $1850 [3], i.e. exactly 10x more expensive for 2.5x of IOPS. Is it worth it? What are your use-cases? Also, I suggest you check this article: [4] about this product: [5]. [1] https://www.supermicro.com/en/Aplus/system/1U/1124/AS-1124US-TNRP.cfm [2] https://www.amazon.com/Micron-15-36TB-Enterprise-Solid-State/dp/B07SK8GSYZ/ [3] https://www.ebay.com/itm/New-4-Pack-Intel-Optane-DC-Persistent-Memory-NMA1XBD256GQS-256GB-DCPMM-2666/274391818137 [4] https://seekingalpha.com/article/4315613-microns-x100-will-drop-like-bomb-on-intel-data-center [5] https://www.micron.com/products/advanced-solutions/3d-xpoint-technology/x100 On 9/6/20 15:52, Donald Wilde wrote: > On 6/9/20, Donald Wilde <dwilde1@gmail.com> wrote: >> On 6/8/20, Jerry <jerry@seibercom.net> wrote: >>> I am seriously thinking about purchasing another PC to play around >>> with. My question is does FreeBSD support Intel's Optane Memory? > > [snip] > >>> >> I'd like to know this too. In-memory-space Optane should only be a >> matter of supportin gthe timings of Optane and its write cycle, which >> is much like FLASH. Another question would be about Optane-based >> accelerator/caching boards that Intel has been selling. >> >> I haven't worked for Intel for several years now, so I do not know if >> these are still current products but it seems so from a cursory >> search. The caching products alone should really speed up web and >> network servers, so IMHO this is a must-have for FreeBSD. > > I will have reason to start buying rack-based servers for a large > project within the next quarter and I can see directing those server > purchases to Optane-equipped SuperMicros like > https://www.storagereview.com/review/supermicro-superserver-with-intel-optane-dc-persistent-memory-first-look-review, > although I'll almost certainly go for a higher-end unit than the one > in this quoted review. > > We can use a couple of them as validation mules. >
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