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VMware vSphere 6.5.x on Dell EMC PowerEdge Systems Release Notes

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Host platform fails due to unsupported sector sizes on the NVMe devices

Description:
The PowerEdge UEFI partition manager supports sector sizes 512B or 4 KB for the NVMe devices. When you reformat the NVMe device to a new sector size other than 512B or 4 KB, the host platform fails to boot.
Applies to:
ESXi 6.5.x
Solution:
Use only 512B (default) or 4 KB sector sizes. To recover 2.5-inch NVMe devices, which have been formatted to an unsupported sector size:
  1. Remove the devices from the host platform before booting.
  2. Hot insert once the operating system is up and running.
  3. Reformat to one of the supported sector sizes—512B or 4 KB.

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