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AZ-600 Study Guide Microsoft Certified Azure Stack Hub Operator
Last week, the team released an updated version of the Azure Stack Hub exam called AZ-600: Configuring and Operating a Hybrid Cloud with Microsoft Azure Stack Hub (This exam is currently in beta and you can take it with an 80% discount). When you pass the AZ-600 exam you will get the Microsoft Certified Azure Stack Hub Operator Associate certification. As always I try to take the exam early so I started to prepare for this exam, and as always I will share my AZ-600: Configuring and Operating a Hybrid Cloud with Microsoft Azure Stack Hub Exam Study Guide with you. You can find the full exam study guide here: https://www.thomasmaurer.ch/2021/01/az-600-study-guide-microsoft-certified-azure-stack-hub-operator/Learn about Azure Stack HCI on Microsoft Learn!
Last week the general availability of the new Azure Stack HCI, our new hybrid cloud hyper-converged platform was announced. With the release of this new platform, the team also released a new Microsoft Learn learning path called Azure Stack HCI foundations. In this learning path, you will be introduced to the Azure Stack portfolio and describes basic architecture, core capabilities, and primary use cases of its products. You’ll also learn about the differences and similarities between Azure Stack HCI, Azure Stack Hub, Azure Stack Edge, and Azure. If you want to get an overview of the Azure Stack portfolio or the new Azure Stack HCI 20H2 version, check out my blog posts. The new Azure Stack HCI foundations learning path on Microsoft Learn currently has 4 modules: Introduction to Azure Stack This module introduces you to the Azure Stack portfolio and describes basic architecture, core capabilities, and primary use cases of its products. You’ll also learn about the differences and similarities between Azure Stack HCI, Azure Stack Hub, Azure Stack Edge, and Azure. You can check out the module here. Introduction to Azure Stack HCI core technologies This module introduces Azure Stack HCI technologies. You’ll learn about the core Azure Stack HCI technologies, including Hyper-V, Windows Server software-defined storage, and Windows Server software-defined networking. You can check out the module here. Plan and deploy Azure Stack HCI This module introduces you to planing for and deploying Azure Stack HCI. Content includes identifying suitable workloads, determining the optimal configuration to host these workloads, stepping through the deployment process, validating post-deployment operational status, and evaluating Azure integration options. You can check out the module here. Integrate Azure Arc and Azure Stack HCI In this module, you will learn the fundamentals of Azure Arc and how is it used to bring new capabilities to the management and monitoring of your Azure Stack HCI clusters at scale. You can check out the module here. You can read the full blog post here.
HCI Stack 23H2 WMI - RPC Server is Unavailable
After updating to Solution 10.2405.2.7 I am unable to manage my cluster through the failover manager and unable to run cluster validations due to the error RPC Server is unavailable. I have restarted the nodes, confirmed firewall rules are allowing WMI and RPC, and confirmed DNS. Azure and WAC are reporting no issues with the cluster, I am worried about applying the next solution in case this WMI issue will cause issues with the updates. Any guidance to resolve this fault would be much appreciated
SMB Bandwidth Limit for VM Live Migration Category.
Hi All, PART 1: Need help to understand the Math or how to calculate the VM Live Migration -SMB Bandwidth Limit? My Environment Details: Considering RDMA capable - Dual NICs of 25GBPS Network model of disaggregated, with Storage VLAN1 and Storage VLAN 2 for storage traffic. (No Teaming for Storage adapters). Considering the above Hardware specs what should be the VM Live migration -bandwidth be? I have seen this article Optimizing Hyper-V Live Migrations on an Hyperconverged Infrastructure | Microsoft Community Hub. However, it says a limit of 750mbps. I understand that this is for 10gbps Dual NICs. (Manual Set values and no using Overrides via Network ATC). If there is a similar optimized value for 25gbps NICS, what is the optimized value and how is it calculated? I see the below table in Microsoft Docs but understand that this is for Converged Model and not for disaggregated. Is there any resources like this for Disaggregated Network Design? Part 2: We have tried to do this via Global overrides to maintain a symmetry across the Cluster. We have used $Globaloverride.SMBVMlivemigrationlimit in GB. (We did Test out 4, 5,5 GB values) We cannot add in Decimal values like 3.25 or 3.5 GB here. It's taking only whole numbers. How do we tackle this? Is this Ideal way to doing it or any better procedure exists without the hassle of manually doing it on all Nodes and ATC Them defaulting it to its own values? And when we do a clean 23H2 Installation Cloud Based, we see the below value: How is this calculated? Part 3: Is validate-dcb a Valid procedure to validate the 23H2 Clusters? If Yes, are there any guidelines to tweak the tests in DCB validate Module to suit our requirements? As per the code, can see that the VM Speed is set to 10gig and I have 25gig NIC cards? Any Knowledge articles that can help with this or any update from Microsoft on validating the 23H2 Clusters? Sorry for making the Post very long but have been fighting demons of questions related to the above topics in my mind. Any help is greatly Appreciated. Thanks in advance.
Azure Stack HCI - adding NIC to Network ATC Intent
Hello fellow Azure Stack HCI Admins, I currently have a compute_management Intent for my two node switchless cluster with only one pNIC per node (port1) assigned. I now want to add port2 of each node to the intent for redundancy. (See image) I found this command-set on learn: https://learn.microsoft.com/en-us/azure-stack/hci/manage/manage-network-atc?tabs=21H2&pivots=azure-stack-hci Get-NetIntentStatus -ClusterName <YourClusterName> Update-NetIntentAdapter -IntentName <YourIntentName> -AdapterName pNIC2 Get-NetIntentStatus -ClusterName <YourClusterName> Is that the correct command set to archive that? Or is there another way to do so? I am a bit anxious on running those commands because I already have workloads deployed on that cluster and I don't want to break it. Thanks in advance! :) PS: I chose only one NIC per node because at the time of deployment I only had one ToR switch available.
Feature Request: Azure Stack Storage and Sizing Tools
I would like to bring up that, despite Azure Stack HCI is a growing solution with outstanding features, the current situation for customers and partners is odd to sizing the solution. What we got is in preview everything and not touched for long time, not keeping up with the technology Introducing the all-new azure stack HCI sizing tool (preview)! - Microsoft Community Hub / https://azurestackhcisolutions.azure.microsoft.com/ https://s2dcalc.blob.core.windows.net/www/index.html I hope that the tool will be united. Also the sizing tool requires a Microsoft account instead of a business account which is odd for a business faced solution. It would be amazing, to see more attention. One thing I would wish the most, is a possibility to import LiveOptics data into the sizer tool.Starting VMs may fail after installation of 10-2023 CU when Veeam RCT is being used -SOLVED-
Dear community, Please consider reading this article https://learn.microsoft.com/en-us/answers/questions/1390624/virtual-machines-failed-to-start-after-installing?page=2#answers in case you are directly affected by the issue, that Hyper-V VMs fail to start, in the certain scenario described below. The issue is not related to VMs not starting on VMware ESXi after applying current CUs. Find remediation instructions for https://kb.vmware.com/s/article/90947 Affected Hosts: Hyper-V Hosts OS: Windows Server 2019 (by community) Windows Server 2022 (by community) Azure Stack HCI 22H2 (experienced myself) Scenario: Gen1 / Gen2 VMs backed up by Veeam using RCT (Change Block Tracking) Not completely confirmed but it seems that unclustered VMs are affected, and clustered VMs are not affected. In a case this morning this caused the unclustered Domain Controllers dedicated for the Azure Stack HCI cluster to fail. edit: 19. Oct. 2023: clustered and unclustered VMs are affected. Reasons: Microsoft has made changes, fixing a long-standing performance issue with Veeam RCT feature, but the fix this can cause a side-effect. The fix is not mentioned in the change log (Windows Update history), despite the criticality of the improvement. https://forums.veeam.com/memberlist.php?mode=viewprofile&u=55718 wrote: https://forums.veeam.com/post500560.html#p500560Oct 09, 2023 10:15 pmThe long awaited 'RCT fix', for the RCT side of this ongoing issue, should be released in the October 2023 Windows update, ie tomorrow!" example of perf. improvements during Veeam backups using RCT from the community: Root cause: directly related to Veeam RCT and CU 10-2023, yet unknown why it happens. Reproducible: yes, 100% in certain scenarios. The https://aka.ms/hci-slack is voluntarily working on the reproducibility in more scenarios to understand the dependencies. Remediation: a. rename or delete MCT / RCT files (quick and dirty). Keep the files if you want Microsoft Support / Veeam Support to engage on this issue. b. uninstall the CU 10-2023 from your cluster (I cannot recommend that for several reasons), using manual suspending of nodes, WUSA and monitor migration and storage replication jobs to be finished before and after restarting nodes. Solution: Deploy Cumulative Update 11-2023, instead of 10-2023 on affected Hyper-V hosts. kudos: ErnieCostaCVLT Jaromir Kaspar Darryl van der Peijl
