Fixing the “Failed to create VMFS datastore – Cannot change the host configuration” error

First, use this command to find the disk id of the newly added disk. Here I can see my new disk array as it’s the one closest to 1TB, the size of the new disks:

ls -lha /vmfs/devices/disks/

Next, use this command to reset the partition table to msdos type for the new disk array:

partedUtil setptbl /vmfs/devices/disks/(disk ID) msdos

Repeating the previous steps to add the new datastore now works, new store added!


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