Join us for a virtual Nutanix User Group meeting with Jarian Gibson as he covers Nutanix Cloud Clusters (NC2) on Azure and AWS with Citrix. <\/span><\/p>

Jarian will take a deep dive into NC2 on Azure architecture and Citrix on NC2 on Azure\u00a0that helps you strengthen your business continuity and disaster recovery position. He\u2019ll also provide the latest updates for NC2 on AWS.<\/span><\/p>

Plus, we're\u00a0giving away a Nutanix suitcase to one lucky winner!\u00a0Opt-in when you register\u00a0to be entered to win.\u00a0<\/p>","author":{"id":113632,"url":"\/members\/karlie-beil-113632","name":"Karlie Beil","avatar":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/icon\/200x200\/1581aab3-bcf6-49f4-b2fb-3d11e8c010dc.png","userTitle":"Community Manager","rank":{"isBold":false,"isItalic":false,"isUnderline":false,"name":"Community Manager","color":"#0873ba"},"userLevel":4},"type":"Webinar","url":"https:\/\/next.nutanix.com\/events\/global-nug-nc2-on-azure-and-aws-with-citrix-151","image":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/f9693b5b-436b-427a-9b98-531b4040ff24_thumb.png","location":"","startsAt":1678298400,"endsAt":1678302000,"contentType":"event","attendees":[],"attendeeCount":0,"isLoggedInUserAttendee":false,"createdAt":"1675974969"},"phrases":{"Forum":{"{n} year|{n} years":"{n} year|{n} years","{n} month|{n} months":"{n} month|{n} months","{n} day|{n} days":"{n} day|{n} days","{n} hour|{n} hours":"{n} hour|{n} hours","{n} minute|{n} minutes":"{n} minute|{n} minutes","just":"just now","{plural} ago":"{plural} ago"}}}">

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Intel Optane SSD释放：Nutanix如何使用分层

  • 2021年9月17日
  • 0答复
  • 949意见
Intel Optane SSD释放：Nutanix如何使用分层
阿卢西亚尼
UserLevel 7
徽章 +34

去年，英特尔和Nutanix宣布了两项创新，这些创新释放了Nutanix AOS上NVME存储的性能。要了解这些背景，请访问我们的博客这里。

今天，我们将讨论针对我们惊人的Intel®Optane™技术的进一步增强。距离NX8170-G7等平台正式获得Intel®Optane™SSD已有一年的时间了，但是我们仍然努力为您带来所有能力。默认情况下，使用大多数驱动器配置时，Nutanix AOS在平坦的存储层中运行。这种存储布局并没有利用Intel Optane SSD所提供的一些最佳品质，我将解释原因。

Nutanix目前将驱动器分为三种类型之一：DAS-SATA，SSD-SATA和SSD-PCIE。SSD-PCIE类别包括我们的Intel P4510和Intel Optane SSD之类的驱动器。Nutanix使用带有SSD的平面架构 - 假设所有驱动器都有足够的空间可用，则IO以循环方式分配。

如果英特尔Optane SSD仅接收1/4Th撰写并从〜1/4读取Th在这段时间里，延迟益处被掩盖了。

那么，我们如何才能获得更多的IO，从我们的快速和高耐力Optane SSD中获得更多的IO呢？1为了回答这一点，我们采用了Nutanix的分层存储架构，目前与SSD和HDD Hybrid配置一起使用。我们的最初测试很有希望，但是更深入的测试揭示了数据局部性的一些问题。

当使用SSD和HDD混合配置时，即使是通过网络读取大多数数据，通常更有益。但是，早期的基准测试表明，对于Intel Optel SSD和SSD配置而言，情况并非总是如此。从远程Intel Optane SSD中读取的读数将比其他本地SSD读取的数据更高。结果是我们发现的联合创新实验室的绩效回归。发现后，我们的工程师帽子继续进行，并更新了分层代码，其中包括严格的数据局部性实践，其中UVM（用户虚拟机）数据只能在同一主机节点上的层之间迁移。有关行为差异的图形表示，请参见下面的图像：

混合SSD和HDD：

分层Intel Optane SSD和3D NAND SSD：

上移迁移（或水平）的逻辑遵循的逻辑与针对Egroup区域的定义相同。

  • 多个读取每10秒采样一次作为一个触碰
  • 在10分钟的窗口上监视触摸次数。数据被迁移到：
    • 3次接触
    • 顺序10触

有了这个新版本的分层，我们已经获得了读取IO 2的大量性能提高（请参见下文），这取决于块大小和工作集大小（您拥有多少频率访问的数据）。

外卖？令人兴奋的事情继续来自我们与Nutanix和AOS与Intel®Optane™SSD的联合创新实验室的发展，只是不断变得更好。如果您想知道我们为您准备的还有什么，请密切注意更多即将到来的新闻！

有关Intel Optane SSD的性能改进的更多详细信息，可以为分层的存储架构提供，请查看我们的.NEXT虚拟展位。

这篇文章由迈克尔·韦拉斯科（Michael Velasco），英特尔（Intel）撰写

通知和免责声明

性能因使用，配置和其他因素而异。了解更多信息www.intel.com/performanceIndex。

性能结果基于配置中显示的日期的测试，并且可能无法反映所有公开可用的更新。有关配置详细信息，请参见备份。没有产品或组件绝对安全。

您的成本和结果可能会有所不同。

英特尔技术可能需要启用硬件，软件或服务激活。

©英特尔公司。英特尔，英特尔徽标和其他英特尔商标是英特尔公司或其子公司的商标。其他名称和品牌可能被认为是他人的财产。

[1]Intel®Optane™SSD DCP4800XSeries提供10µs/12µs读取/写入潜伏期，与〜3 dwpd的TLC NAND SSD相比，额定值为60 dwpd（每天驱动器每天写入）。

产品简介：Intel®Optane™SSD DC P4800X/P4801X系列

产品简介：Intel®SSDDC P4610系列

[2]英特尔测试，2021年6月8日。工作量：16k 100％随机读取＆70/30随机R/W，使用XRAY 3.70。

4 VM，1 Vdisk，QD 4至128。请参阅下面的配置：

配置1：1节点，2x Intel Xeon 6248R，24C，3.0GHz基础，4.0GHz Turbo，192GB（12个插槽/16GB/29333MHz总计192GB DDR4内存，8xIntel®SSDSSD SSD SSD DC P4510（2TB）-S4510 M.2（240GB）Intel®X710（10GBE）和Mellanox MT27710（25GBE），AOS版本5.20开发构建，BIOS SE5C620.86B.02.01.0008.CNX01

配置2：1节点，2x Intel Xeon 6248r，24c，3.0GHz碱基，4.0GHz Turbo，192GB（12个插槽/16GB/29333MHz总计192GB DDR4内存，2xIntel®Optel®Optane®Optane™DC P4800X（750GB），8XIntel®SsssssssssssssssssssssssssinDC P4510（2TB），1XIntel®SSDD3-S4510 M.2（240GB）Intel®X710（10GBE）（10GBE）和Mellanox MT27710（25GBE）（25GBE），AOS版本5.20开发构建，BIOS SE5C620.86B.02.02.01.0008.CNX01

Last year Intel and Nutanix announced two innovations that unleashed the performance of NVMe storage on Nutanix AOS. To get some background on these, visit our blog <\/span>here<\/span><\/a><\/span>.<\/span><\/span><\/p>

Today we\u2019ll be discussing further enhancements under development focused on our amazing Intel\u00ae Optane\u2122 technology. It\u2019s been a year since Intel\u00ae Optane\u2122 SSDs become officially available in platforms such as the NX8170-G7, but we\u2019re still hard at work to bring you every bit of performance we can. By default, Nutanix AOS runs in a flat storage tier when using most drive configurations. This storage layout was not taking advantage of some of the best qualities Intel Optane SSDs had to offer and I\u2019ll explain why.<\/span><\/span><\/p>

Nutanix currently categorizes drives in one of three types: DAS-SATA, SSD-SATA, and SSD-PCIe. The SSD-PCIe category includes drives like our Intel P4510 and Intel Optane SSD. Nutanix uses a flat tier architecture with SSDs \u2013 and assuming all drives have sufficient space available, the IO is distributed in a round robin fashion.<\/span><\/span><\/p>

\"//www.jhbzcj.com/next/community-blog-154/\"<\/figure>

If Intel Optane SSDs are only receiving 1\/4<\/span>th<\/span> of the writes and being read from ~1\/4<\/span>th<\/span> of the time, then the latency benefits are masked.<\/span><\/span><\/p>

So how can we get more of the IO to come from our reliably fast and high endurance Optane SSDs?<\/span> 1<\/span> To answer this, we adopted Nutanix\u2019s tiered storage architecture currently used with SSD plus HDD hybrid configurations. Our initial tests were promising, but more in-depth testing revealed some issues with data locality.<\/span><\/span><\/p>

When using an SSD plus HDD hybrid configuration, it was often more beneficial to read\/write most data from an SSD, even over the network. However, early benchmarks showed this isn\u2019t always the case for tiered Intel Optane SSD plus SSD configurations. Reads from remote Intel Optane SSDs would have a higher latency than data read from other local SSDs. The result was performance regressions our joint innovation lab discovered. Once spotted, our engineer hats went on and the tiering code was updated to include strict data locality practices where UVM (user virtual machine) data would only be migrated between tiers on the same host node. For a graphical representation of the behavior differences, see the images below:<\/p>

Hybrid SSDs plus HDD: <\/span><\/span><\/p>

<\/oembed><\/p>

Tiered Intel Optane SSDs plus 3D NAND SSD: <\/span><\/span><\/p>

<\/oembed><\/p>

The logic for up-migration (or horizontal) follows the same as that defined for egroup locality.<\/span><\/span><\/p>

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