Thanks for sharing @victorwu, definitely comes with caveats now, key sentance:

If a persistent local device is not available as a boot device, SD cards can be used for boot bank partitions However a separate persistent local device to store the OSDATA partition (32GB** minimum, 128GB** recommended) must be provided

Gives people time to perform lifecycle refreshes where they still have a platform designed with SD/USB storage that they don’t want to invest in.

Thanks for sharing this as it is good to see there is still time to plan migrations for users.

We have switched to internal SSDs and retired the SD cards in all of our Hosts due to the problems with V7...

But good to know that there is a possible migration path.

Recently I had a discussion with my colleges about the current situation at our customers. Currently there seems to be no major problem with SD/USB drives in servers with current ESXi version. Nevertheless, it will not be supported with next version of vSphere. The actual problem is more to get necessary components in time!