您现在访问的是微软AZURE全球版技术文档网站,若需要访问由世纪互联运营的MICROSOFT AZURE中国区技术文档网站,请访问 https://docs.azure.cn.

NCasT4_v3 系列NCasT4_v3-series

NCasT4_v3 系列虚拟机由 Nvidia Tesla T4 GPU 和 AMD EPYC 7V12 提供支持 (罗马) cpu。The NCasT4_v3-series virtual machines are powered by Nvidia Tesla T4 GPUs and AMD EPYC 7V12(Rome) CPUs. Vm 的功能最多支持4个 NVIDIA T4 Gpu,每个内存有 16 GB 内存,最多64个非多线程 AMD EPYC 7V12 (罗马) 处理器核心,440 GiB 的系统内存。The VMs feature up to 4 NVIDIA T4 GPUs with 16 GB of memory each, up to 64 non-multithreaded AMD EPYC 7V12 (Rome) processor cores, and 440 GiB of system memory. 这些虚拟机非常适合用于部署 AI 服务,例如用户生成的请求的实时推断,或使用 NVIDIA 网格驱动程序和虚拟 GPU 技术的交互式图形和可视化工作负荷。These virtual machines are ideal for deploying AI services- such as real-time inferencing of user generated requests, or for interactive graphics and visualization workloads using NVIDIA's GRID driver and virtual GPU technology. 基于 CUDA、TensorRT、Caffe、ONNX 和其他框架的标准 GPU 计算工作负荷,或基于 GPU 加速图形应用程序的 OpenGL 和 DirectX,可以在 NCasT4_v3 系列上以经济实惠的方式部署到用户。Standard GPU compute workloads based around CUDA, TensorRT, Caffe, ONNX and other frameworks, or GPU-accelerated graphical applications based OpenGL and DirectX can be deployed economically, with close proximity to users, on the NCasT4_v3 series.


ACU:230-260ACU: 230-260
高级存储:支持Premium Storage: Supported
高级存储缓存:支持Premium Storage caching: Supported
实时迁移:不支持Live Migration: Not Supported
内存保留更新:不支持Memory Preserving Updates: Not Supported
VM 代系支持:第 1 代和第 2 代VM Generation Support: Generation 1 and 2
加速网络:支持Accelerated Networking: Supported
临时 OS 磁盘:不支持Ephemeral OS Disks: Not Supported
Nvidia NVLink 互连:不支持Nvidia NVLink Interconnect: Not Supported

大小Size vCPUvCPU 内存:GiBMemory: GiB 临时存储 (SSD) GiBTemp storage (SSD) GiB GPUGPU GPU 内存:GiBGPU memory: GiB 最大数据磁盘数Max data disks 最大 NIC 数/预期网络带宽 (MBps)Max NICs / Expected network bandwidth (Mbps)
Standard_NC4as_T4_v3Standard_NC4as_T4_v3 44 2828 180180 11 1616 88 2 / 80002 / 8000
Standard_NC8as_T4_v3Standard_NC8as_T4_v3 88 5656 360360 11 1616 1616 4 / 80004 / 8000
Standard_NC16as_T4_v3Standard_NC16as_T4_v3 1616 110110 360360 11 1616 3232 8 / 80008 / 8000
Standard_NC64as_T4_v3Standard_NC64as_T4_v3 6464 440440 28802880 44 6464 3232 8 / 320008 / 32000

大小表定义Size table definitions

  • 存储容量的单位为 GiB 或 1024^3 字节。Storage capacity is shown in units of GiB or 1024^3 bytes. 比较以 GB(1000^3 字节)为单位的磁盘与以 GiB(1024^3 字节)为单位的磁盘时,请记住以 GiB 为单位的容量数显得更小。When you compare disks measured in GB (1000^3 bytes) to disks measured in GiB (1024^3) remember that capacity numbers given in GiB may appear smaller. 例如,1023 GiB = 1098.4 GB。For example, 1023 GiB = 1098.4 GB.

  • 磁盘吞吐量的单位为每秒输入/输出操作数 (IOPS) 和 MBps,其中 MBps = 10^6 字节/秒。Disk throughput is measured in input/output operations per second (IOPS) and MBps where MBps = 10^6 bytes/sec.

  • 数据磁盘可以在缓存或非缓存模式下运行。Data disks can operate in cached or uncached modes. 对于缓存数据磁盘操作,主机缓存模式设置为 ReadOnlyReadWriteFor cached data disk operation, the host cache mode is set to ReadOnly or ReadWrite. 对于非缓存数据磁盘操作,主机缓存模式设置为 NoneFor uncached data disk operation, the host cache mode is set to None.

  • 若要了解如何为 Vm 获得最佳存储性能,请参阅 虚拟机和磁盘性能To learn how to get the best storage performance for your VMs, see Virtual machine and disk performance.

  • 预期的网络带宽 是指跨所有 NIC 为每个 VM 类型分配的最大聚合带宽,适用于所有目标。Expected network bandwidth is the maximum aggregated bandwidth allocated per VM type across all NICs, for all destinations. 有关详细信息,请参阅虚拟机网络带宽For more information, see Virtual machine network bandwidth.

    无法保证上限。Upper limits aren't guaranteed. 限值用于在为目标应用程序选择适当的 VM 类型时提供指导。Limits offer guidance for selecting the right VM type for the intended application. 实际的网络性能将取决于多种因素,包括网络拥塞、应用程序负载和网络设置。Actual network performance will depend on several factors including network congestion, application loads, and network settings. 有关如何优化网络吞吐量的信息,请参阅为 Azure 虚拟机优化网络吞吐量For information on optimizing network throughput, see Optimize network throughput for Azure virtual machines. 若要在 Linux 或 Windows 中达到预期的网络性能,可能需要选择特定版本,或者需要优化 VM。To achieve the expected network performance on Linux or Windows, you may need to select a specific version or optimize your VM. 有关详细信息,请参阅带宽/吞吐量测试 (NTTTCP)For more information, see Bandwidth/Throughput testing (NTTTCP).

支持的操作系统和驱动程序Supported operating systems and drivers

若要利用运行 Windows 或 Linux 的 Azure NCasT4_v3 系列 Vm 的 GPU 功能,必须安装 Nvidia GPU 驱动程序。To take advantage of the GPU capabilities of Azure NCasT4_v3-series VMs running Windows or Linux, Nvidia GPU drivers must be installed.

若要手动安装 Nvidia GPU 驱动程序,请参阅适用于 Windows 的 N 系列 gpu 驱动程序设置 以获取支持的操作系统、驱动程序、安装和验证步骤。To install Nvidia GPU drivers manually, see N-series GPU driver setup for Windows for supported operating systems, drivers, installation, and verification steps.

其他大小Other sizes

后续步骤Next steps

了解有关 Azure 计算单元 (ACU) 如何帮助跨 Azure SKU 比较计算性能的详细信息。Learn more about how Azure compute units (ACU) can help you compare compute performance across Azure SKUs.