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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
Backup of Azure HCI Hosts with Veeam
I'm looking into best practices with backing up Azure Stack HCI Hosts. We currently use Veeam for backing up all the vm's hosted by these servers. I would like to backup these hosts without also including all the vm's . What is the best methods for accomplishing this? Thanks, JimAZ-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/
Azure stack HCI Backup MABS or MARS
Is MABS is the only option to backup in Azure stack HCI as per the below article Back up Azure Stack HCI virtual machines with MABS - Azure Backup | Microsoft Docs Not really sure but I have read somewhere u can also user MARS agents can someone please point to right documentation on Azure stack HCI Backup best practices and any architectureFeature 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.
