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It is supported that the external vCenter (customer managed vCenter) version is higher than the VxRail cluster ESXi host version. However, when the external vCenter 8.0 U3 is managing some previous version VxRail hosts, enabling vLCM on the cluster fails. Scenario 1: Day1 cluster deployment enable vLCM fails. Scenario 2: Day2 enable vLCM stuck at 12%.
vCenter 8.0 U3 starts to support gzip format compression header for HTTP Request, it is not compatible with previous versions of VxRail manager, which causes communication issue between the vCenter and VxRail manager.
7.0.520 and 8.0.300 releases have fixed this issue. For the day1 scenario, reimage the nodes to 7.0.520 or 8.0.300, then build the cluster with vLCM enabled. For the day2 scenario, upgrade the cluster to 7.0.520 or 8.0.300, then enable the vLCM. If you are not ready for an upgrade, please engage Dell Support to apply a patch on the VxRail manager.
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