VMFS 5 introduced sub-blocks, unified file block size (1 MB), and automatic GPT (GUID Partition Table) alignment. Common reasons for datastore loss include:
If the first few sectors are overwritten but the main VMFS heartbeats remain: recover vmfs 5 datastore
Sometimes the datastore is still present but not visible. VMFS 5 introduced sub-blocks, unified file block size
partedUtil get /dev/disks/naa.xxxxxx
VMFS (Virtual Machine File System) is a file system used by VMware ESXi to store virtual machines. VMFS 5 is the fifth version of the VMFS file system, introduced with VMware ESXi 5.0. VMFS 5 introduced sub-blocks