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The survey typically takes 10-15 minutes to complete. You can bookmark your progress and pick up where you left off within one week of starting the survey. It\u2019s also completely anonymous. Skillsoft doesn\u2019t sell the data or share it with others.\u00a0<\/p>

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This article was written by Karlie Beil, Customer Marketing Specialist.\u00a0<\/p><\/div><\/div><\/div><\/div><\/div><\/section>

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\u00a9\ufe0f\ufe0f\ufe0f\ufe0f\ufe0f\ufe0f 2022 Nutanix, Inc. \u00a0All rights reserved. Nutanix, the Nutanix logo and all Nutanix product, feature and service names mentioned herein are registered trademarks or trademarks of Nutanix, Inc. in the United States and other countries. Other brand names mentioned herein are for identification purposes only and may be the trademarks of their respective holder(s). This post may contain links to external websites that are not part of Nutanix.com. Nutanix does not control these sites and disclaims all responsibility for the content or accuracy of any external site. Our decision to link to an external site should not be considered an endorsement of any content on such a site. This post may contain express and implied forward-looking statements, which are not historical facts and are instead based on our current expectations, estimates and beliefs. The accuracy of such statements involves risks and uncertainties and depends upon future events, including those that may be beyond our control, and actual results may differ materially and adversely from those anticipated or implied by such statements. Any forward-looking statements included herein speak only as of the date hereof and, except as required by law, we assume no obligation to update or otherwise revise any of such forward-looking statements to reflect subsequent events or circumstances.<\/p>","id":40862,"featuredImage":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/1b5db37d-c54b-4002-8bee-065c799897b2_thumb.png","label":"Blog","replyCount":0,"views":435,"post":{"id":61075,"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":2},"content":"

The 2022 IT Salary & Skills Survey is now open, and you can participate!<\/strong> <\/span><\/p>

This survey is one of the largest studies of IT salary, skills, and certifications. It\u2019s the backbone of Skillsoft\u2019s annual IT Skills and Salary Report, which shares detailed insights on skills and certifications, compensation, skills gaps and challenges, and more for IT professionals at every stage of their career.<\/span><\/p>

The survey typically takes 10-15 minutes to complete. You can bookmark your progress and pick up where you left off within one week of starting the survey. It\u2019s also completely anonymous. Skillsoft doesn\u2019t sell the data or share it with others.\u00a0<\/p>

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介绍：vsphere上的VGPU，安装和故障排除提示

  • 2015年3月26日
  • 0答复
  • 420次观看
阿卢西亚尼
UserLevel 7
徽章 +34
在过去的几天，在Nutanix上，我在测试VSphere 6的新VGPU功能中，与新的NVIDIA网格驱动程序结合使用，因此也可以在VSPHERE 6上通过Horizo​​n 6提供VGPU。

在此初始阶段，我与Martijn Bosschaart合作，涵盖了此安装，经过一个配置和故障排除的夜晚，我认为写一个即将来临的新功能的博客文章是个好主意。

什么是VGPU，为什么需要它？

VGPU配置文件通过利用VGPU管理器为每个桌面分配配置的内存来提供专用的图形内存。每个VDI实例将根据其需求或更好地根据其应用程序的需求提供预定的资源。

By using the vGPU profiles from the vGPU Manager you can share each physical GPU, for example a NVIDIA GRID K1 card has up to 4 physical GPU’s which can host up to 8 users per physical GPU resulting in 32 users with a vGPU enabled desktop per K1 card.

在NVIDIA GRID K1卡旁边，还有K2卡具有2 x高端开普勒GPU，而不是4 x入口Kepler GPU，但与K1的768 CUDA核心相比，最多可以交付3072个CUDA核心。

VGPU还可以基于配置文件提供调整的性能，可以在VM上配置VGPU配置文件，从而可以在性能和可扩展性之间平衡可用性。当我们查看可用的配置文件时，我们可以看到与高功率VM相比，可以在更多台式机上传递功能较低的配置文件：



所有带有Q的GPU配置文件都被提交给与工作站处理器相同的认证过程，这意味着这些配置文件应（至少）与当前的NVIDIA Workstation处理器相同。

K100和K200配置文件都是为知识工作者而设计的，并且将提供较少的图形性能，但将提高可扩展性，这些配置文件的典型用例比您预期的要多得多，并且随着应用程序的图形丰富性，VGPU的使用量不断增加。也更多地成为一种商品。只需查看Office 2013，Flash/html或Windows 7/8.1，甚至可以使用Aero和所有其他可以启用的眼睛糖果，这些都是K100/K200 VGPU配置文件的好用例。

安装

我们的系统依赖于CVM，Nutanix CVM是运行Nutanix软件的原因，并为该主机上运行的Hypervisor和所有VM提供了所有I/O操作。对于运行VMware vSphere的Nutanix单元，管理SSD和HDD设备的SCSI控制器直接传递到CVM利用VM-Direct Path（Intel VT-D）。在Hyper-V的情况下，存储设备将传递到CVM。以下是典型节点在逻辑上的样子的示例：



事实证明，我们的CVM在VSphere 5.5升级到VSphere 6的升级方面非常出色，因为它完全按计划工作（您不只是喜欢一个软件定义的数据中心吗？），我在测试群集中看到了以下配置：



安装没有任何问题，因此我们可以遵循（非常详细的）指南来设置其余的环境。设置vCenter 6和Horizo​​n 6.0.1非常简单且描述很好，但是当我们下降到将VGPU配置文件分配给VM时，我可以看到VGPU配置文件，但是当启动VM时，会发生错误消息。

故障排除的有用命令



在我的情况下，我正在测试的块用于其他测试目的，因此我尝试运行XORG时不会启动，因此我检查了VGPU配置，并注意到在PCIPASSTHRU中配置的卡片。这就是为什么Xorg不运行，禁用PCIPASSTHRU：

在VSPHERE客户端中，选择主机并导航到配置选项卡>高级设置。单击左上方的配置传递。DESELECT至少一个核心将其删除从通过

之后，我在VM的日志中有不同的错误：

VMIOP_LOG：错误：初始化：启用ECC不支持VGX。

在Google的一些帮助下，我发现了以下解释：ECC Active当前不支持Virtual GPU。GRID K2卡默认情况下，具有ECC的运输，但随后使用NVIDIA-SMI启用ECC。

使用NVIDIA-SMI列出所有GPU上的状态，并检查在GRID K2 GPU上启用的ECC。通过执行NVIDIA -SMI -I -E 0将ECC状态更改为在特定GPU上的关闭，其中NVIDIA -SMI报告的GPU索引是其中的索引。

更改后，我能够启动VM，创建主图像并通过Horizo​​n 6使用VGPU配置文件部署地平线桌面：

https://www.youtube.com/watch?v=usdry2jy4pg

注1：我正在执行有限的带宽，因为您可以看到台式机最多可达66fps。

注2：请注意，尽管此时Nutanix不支持Nutanix vsphere 6上进行此测试，但支持将尽快进行，但请注意。

这是博客的重新发布我的虚拟愿景由Kees Baggerman
在Twitter上关注我：https：//twitter.com/angeloluciani
\n
\nDuring this initial phase I worked together with Martijn Bosschaart to get this installation covered and after an evening of configuring and troubleshooting I thought it would be a good idea to write a blogpost on this new feature that is coming.
\n
\nWhat is vGPU and why do I need it?<\/b>
\n
\nvGPU profiles deliver dedicated graphics memory by leveraging the vGPU Manager to assign the configured memory for each desktop. Each VDI instance will have pre-determined amount of resources based on their needs or better yet based on the needs of their applications.
\n
\nBy using the vGPU profiles from the vGPU Manager you can share each physical GPU, for example a NVIDIA GRID K1 card has up to 4 physical GPU\u2019s which can host up to 8 users per physical GPU resulting in 32 users with a vGPU enabled desktop per K1 card.
\n
\nNext to the NVIDIA GRID K1 card there\u2019s the K2 card which has 2 x high-end Kepler GPUs instead of 4 x entry Kepler GPUs but can deliver up to 3072 CUDA cores compared to the 768 CUDA cores of the K1.
\n
\nvGPU can also deliver adjusted performance based on profiles, a vGPU profile can be configured on VM based in such a way that usability can be balanced between performance and scalability. When we look at the available profiles we can see that less powerful profiles can be delivered on more desktops compared to high powered VMs:
\n
\n

<\/a><\/p>
\n
\nAll the GPU profiles with a Q are being submitted to the same certification process as the workstation processors meaning that these profiles should (at least) perform the same as the current NVIDIA workstation processors.
\n
\nBoth of the K100 and K200 profiles are designed for knowledge workers and will deliver less graphical performance but will enhance scalability, typical use cases for these profiles are much more commodity than you would expect and with the growing graphical richness of applications the usage of vGPU will become more of a commodity as well. Just take a look at Office 2013, Flash\/HTML or Windows 7\/8.1 or even 10 with Aero and all other eye candy that can be enabled, these are all good use cases for the K100\/K200 vGPU profiles.
\n
\nThe installation<\/b>
\n
\nOur systems rely on the CVM, the Nutanix CVM is what runs the Nutanix software and serves all of the I\/O operations for the hypervisor and all VMs running on that host. For the Nutanix units running VMware vSphere, the SCSI controller, which manages the SSD and HDD devices, is directly passed to the CVM leveraging VM-Direct Path (Intel VT-d). In the case of Hyper-V the storage devices are passed through to the CVM. Below is an example of what a typical node logically looks like:
\n
\n

<\/a><\/p>
\n
\nIt turned out that our CVM played very nicely with the upgrade of vSphere 5.5 to vSphere 6 as it worked exactly as planned (don\u2019t you just love a Software Defined Datacenter?) and I saw the following configuration in our test cluster:
\n
\n

<\/a><\/p>
\n
\nThe installation went without any problems so we could follow (very detailed) guide to setup the rest of the environment. Setting up vCenter 6 and Horizon 6.0.1 was fairly easy and well described but when we got down to assigning the vGPU profiles to the VM I was able to see the vGPU profiles but when starting the VM an error message would occur.
\n
\nUseful commands for troubleshooting<\/b>
\n
\n

<\/a><\/p>
\n
\nIn my case the block I was testing on was used for other testing purposes so I when I tried running Xorg it would not start, so I checked the vGPU configuration and noticed that the cards where configured in pciPassthru. That was why Xorg wasn\u2019t running, to disable pciPassthru:
\n
\nIn the vSphere client, select the host and navigate to Configuration tab > Advanced Settings. Click Configure Passthrough in the top left.Deselect at least one core to remove it from being passed through
\n
\nAfter that I had a different error in the logs of my VM:
\n
\nvmiop_log: error: Initialization: VGX not supported with ECC Enabled.
\n
\nWith some help from Google I found the following explanation: Virtual GPU is not currently supported with ECC active. GRID K2 cards ship with ECC disabled by default, but ECC may subsequently be enabled using nvidia-smi.
\n
\nUse nvidia-smi to list status on all GPUs, and check for ECC noted as enabled on GRID K2 GPUs. Change the ECC status to off on a specific GPU by executing nvidia-smi -i -e 0, where is the index of the GPU as reported by nvidia-smi.
\n
\nAfter this change I was able to boot my VM, create a Master Image and deploy the Horizon desktops with a vGPU Profile via Horizon 6:
\n
\nhttps:\/\/www.youtube.com\/watch?v=UsDry2JY4pg<\/a>
\n
\nnote 1: I was performing remote testing with limited bandwidth, as you can see the desktop did up to 66FPS.
\n
\nnote 2: Please be aware that although this testing was done on a Nutanix powered platform vSphere 6 is not supported by Nutanix at this moment, support will follow asap but be aware of this.
\n
\nThis is a repost from the blog My Virtual Vision<\/a> by Kees Baggerman<\/b><\/i>","quoteUsername":"aluciani","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

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