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articles/operator-nexus/concepts-nexus-availability.md

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4. Plan the distribution of workload instances to determine the number of racks needed in each site type, allowing for the fact that each rack is an Operator Nexus zone. The platform can enforce affinity/anti-affinity rules at the scope of these zones, to ensure workload instances are distributed in such a way as to be resilient to failures of individual servers or racks. See [this article](./howto-virtual-machine-placement-hints.md) for more on affinity/anti-affinity rules. The Operator Nexus Azure Kubernetes Service (NAKS) controller automatically distributes nodes within a cluster across the available servers in a zone as uniformly as possible, within other constraints. As a result, failure of any single server has the minimum impact on the total capacity remaining.
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5. Factor in the [threshold redundancy](./howto-cluster-runtime-upgrade#configure-compute-threshold-parameters-for-runtime-upgrade-using-cluster-updatestrategy.md) that is required within each site on upgrade. This configuration option indicates to the orchestration engine the minimum number of worker nodes that must be available in order for a platform upgrade to be considered successful and allowed to proceed. Reserving these nodes eats into any capacity headroom. Setting a higher bar decreases the overall deployment's resilience to failure of individual nodes, but improves efficiency of utilization of the available capacity.
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5. Factor in the [threshold redundancy](./howto-cluster-runtime-upgrade#configure-compute-threshold-parameters-for-runtime-upgrade-using-cluster-updatestrategy) that is required within each site on upgrade. This configuration option indicates to the orchestration engine the minimum number of worker nodes that must be available in order for a platform upgrade to be considered successful and allowed to proceed. Reserving these nodes eats into any capacity headroom. Setting a higher bar decreases the overall deployment's resilience to failure of individual nodes, but improves efficiency of utilization of the available capacity.
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6. Operator Nexus supports between 1 and 8 racks per site inclusive, with each rack containing 4, 8, 12 or 16 servers. All racks must be identical in terms of number of servers. See [here](./reference-near-edge-compute.md) for specifics of the resource available for workloads. See the following diagram, and also [this article](./reference-limits-and-quotas.md) for other limits and quotas that might have an impact.
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- The process is only active on one rack in the selected site at a time. Although upgrade is done in-place, there's still some impact to the worker nodes in the rack during the upgrade.
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For more information about the upgrade process, see [this article](./howto-cluster-runtime-upgrade#upgrading-cluster-runtime-using-cli.md). For more information about ensuring control-plane resiliency, see [this one](./concepts-rack-resiliency.md).
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For more information about the upgrade process, see [this article](./howto-cluster-runtime-upgrade#upgrading-cluster-runtime-using-cli). For more information about ensuring control-plane resiliency, see [this one](./concepts-rack-resiliency.md).
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## Designing and Operating High Availability Workloads for Operator Nexus
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Workloads should ideally follow a cloud-native design, with N+k clusters that can be deployed across multiple nodes and racks within a site, using the Operator Nexus zone concept.
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The Well Architected Framework guidance on [mission critical](../well-architected/mission-critical/) and [carrier grade](../well-architected/carrier-grade/) workloads on Azure also applies to workloads on Operator Nexus.
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The Well Architected Framework guidance on [mission critical](/well-architected/mission-critical/) and [carrier grade](/well-architected/carrier-grade/) workloads on Azure also applies to workloads on Operator Nexus.
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Designing and implementing highly available workloads on any platform requires a top-down approach. Start with an understanding of the availability required from the solution as a whole. Consider the key elements of the solution and their predicted availability. Then determine how these attributes need to be combined in order to achieve the solution level goals.
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articles/update-manager/deploy-updates.md

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> [!NOTE]
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> - To view a summary of the updates applied on your machines, go to **Azure Update Manager** > **Manage** > **History** in [Azure portal](https://portal.azure.com).
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> - Alternatively, go to **Control Panel** > **Programs** > **Programs and Features** > **Installed Updates** to view the installed CBS updates. This view only shows history of CBS updates [Servicing stack updates - Windows Deployment](/windows/deployment/update/servicing-stack-updates.md) which can be uninstalled.
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> - Alternatively, go to **Control Panel** > **Programs** > **Programs and Features** > **Installed Updates** to view the installed CBS updates. This view only shows history of CBS updates [Servicing stack updates - Windows Deployment](/windows/deployment/update/servicing-stack-updates) which can be uninstalled.
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A list of the deployments created are shown in the update deployment grid and include relevant information about the deployment. Every update deployment has a unique GUID, represented as **Operation ID**, which is listed along with **Status**, **Updates Installed** and **Time** details. You can filter the results listed in the grid.
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articles/virtual-machines/dasv6-dadsv6-series.md

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The Dasv6-series and Dadsv6-series utilize AMD's 4th Generation EPYC<sup>TM</sup> 9004 processor in a multi-threaded configuration with up to 320 MB L3 cache, increasing customer options for running their general-purpose workloads. The Dasv6-series VMs work well for many general computing workloads, such as e-commerce systems, web front ends, desktop virtualization solutions, customer relationship management applications, entry-level and mid-range databases, application servers, and more. 
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> [!NOTE]
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> The new Dasv6 and Dadsv6 VM series will only work on OS images that are tagged with NVMe support.  If your current OS image is not supported for NVMe, you’ll see an error message. NVMe support is available in 50+ of the most popular OS images, and we continuously improve the OS image coverage. Please refer to our up-to-date [lists](./enable-nvme-interface.md) for information on which OS images are tagged as NVMe supported.  For more information on NVMe enablement, see our [FAQ](./virtual-machines/enable-nvme-faqs.md).
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> The new Dasv6 and Dadsv6 VM series will only work on OS images that are tagged with NVMe support.  If your current OS image is not supported for NVMe, you’ll see an error message. NVMe support is available in 50+ of the most popular OS images, and we continuously improve the OS image coverage. Please refer to our up-to-date [lists](./enable-nvme-interface.md) for information on which OS images are tagged as NVMe supported.  For more information on NVMe enablement, see our [FAQ](./enable-nvme-faqs.yml).
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> The new Dasv6 and Dadsv6 VM series virtual machines public preview now available. For more information and to sign up for the preview, please visit our [announcement](https://techcommunity.microsoft.com/t5/azure-compute-blog/public-preview-new-amd-based-vms-with-increased-performance/ba-p/3981351) and follow the link to the [sign-up form](https://forms.office.com/Pages/ResponsePage.aspx?id=v4j5cvGGr0GRqy180BHbR9RmLSiOpIpImo4Q01A_jJlUM1ZSRVlYU04wMUJQVjNQRFZHQzdEVFc1VyQlQCN0PWcu). This is an opportunity to experience our latest innovation.
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articles/virtual-machines/fasv6-falsv6-series.md

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The Falsv6, Fasv6, and Famsv6-series utilize AMD's 4th Generation EPYC<sup>TM</sup> 9004 processor that can achieve a boosted maximum frequency of 3.7GHz with up to 320 MB L3 cache.  The Falsv6, Fasv6, and Famsv6 VM series come without Simultaneous Multithreading (SMT), meaning a vCPU is now mapped to a full physical core, allowing software processes to run on dedicated and uncontested resources. These new full core VMs will suit workloads demanding the highest CPU performance. Falsv6, Fasv6, and Famsv6-series offer up to 64 full core vCPUs and 512 GiB of RAM in three memory to core ratios, and are optimized for scientific simulations, financial and risk analysis, gaming, rendering and other workloads able to take advantage of the exceptional performance. Customers running software licensed on per-vCPU basis can leverage these VMs to optimize compute costs within their infrastructure. 
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> [!NOTE]
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> For frequently asked questions, see **[Azure VM sizes with no local temp disk](./azure-vms-no-temp-disk.yml)**. The Falsv6, Fasv6, and Famsv6-series virtual machines do not have any temporary storage. You can attach Standard SSD, Standard HDD, and Premium SSD disk types. You can also attach Ultra Disk storage based on its regional availability. Disk storage is billed separately from virtual machines. [See pricing for disks](https://azure.microsoft.com/pricing/details/managed-disks/). The new Falsv6, Fasv6, and Famsv6 VM series will only work on OS images that are tagged with NVMe support.  If your current OS image is not supported for NVMe, you’ll see an error message. NVMe support is available in 50+ of the most popular OS images, and we continuously improve the OS image coverage. Please refer to our up-to-date [lists](https://learn.microsoft.com/azure/virtual-machines/enable-nvme-interface) for information on which OS images are tagged as NVMe supported.  For more information on NVMe enablement, see our [FAQ](./enable-nvme-faqs.yml).
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> For frequently asked questions, see **[Azure VM sizes with no local temp disk](./azure-vms-no-temp-disk.yml)**. The Falsv6, Fasv6, and Famsv6-series virtual machines do not have any temporary storage. You can attach Standard SSD, Standard HDD, and Premium SSD disk types. You can also attach Ultra Disk storage based on its regional availability. Disk storage is billed separately from virtual machines. [See pricing for disks](https://azure.microsoft.com/pricing/details/managed-disks/). The new Falsv6, Fasv6, and Famsv6 VM series will only work on OS images that are tagged with NVMe support.  If your current OS image is not supported for NVMe, you’ll see an error message. NVMe support is available in 50+ of the most popular OS images, and we continuously improve the OS image coverage. Please refer to our up-to-date [lists](./enable-nvme-interface.md) for information on which OS images are tagged as NVMe supported.  For more information on NVMe enablement, see our [FAQ](./enable-nvme-faqs.yml).
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> The new Falsv6, Fasv6, and Famsv6VM series virtual machines public preview now available. For more information and to sign up for the preview, please visit our [announcement](https://techcommunity.microsoft.com/t5/azure-compute-blog/public-preview-new-amd-based-vms-with-increased-performance/ba-p/3981351) and follow the link to the [sign-up form](https://forms.office.com/Pages/ResponsePage.aspx?id=v4j5cvGGr0GRqy180BHbR9RmLSiOpIpImo4Q01A_jJlUM1ZSRVlYU04wMUJQVjNQRFZHQzdEVFc1VyQlQCN0PWcu). This is an opportunity to experience our latest innovation.
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