If the datastore mounts but VMs fail to register, run:
Not necessarily. In many cases, a deleted VMFS partition is not destroyed—it’s simply hidden . Here is your technical guide to walking back from the edge of disaster. First, understand what happens when you delete a partition. Tools like fdisk , parted , or Windows DiskPart do not erase your data. They erase the partition table entry —a small, 128-byte (or less) record that tells the operating system where the partition starts, where it ends, and what type of file system it holds (e.g., 0xFB for VMFS). recover deleted vmfs partition
esxcli storage core adapter rescan --all If the partition reappears but shows as "Not a valid VMFS volume," check the partition ID. ESXi requires the partition type to be 0xFB . Use fdisk -l from the ESXi shell (if you have it enabled) to verify. If the datastore mounts but VMs fail to
Pro tip: VMFS6 partitions have a different backup superblock location. If Quick Search fails, run [Deeper Search] . This may take hours but often finds secondary copies of the partition table. If automated tools fail—perhaps the partition table is corrupt, not just deleted—you may need manual recovery. This requires understanding VMFS layout. First, understand what happens when you delete a partition