What Vmfs 6

VMFS 6 is the new filesystem of vSphere 6.5. The new filesystem supports 512e advanced format drives and is 4098 sector (4K) aligned. It also supports automatic UNMAP, which asynchronously tracks freed blocks and sends UNMAPs to backend storage in background.

What is VMFS version?

VMFS5 is used by vSphere 5. x. Notably, it raises the extent limit to 64 TB and the file size limit to 62 TB, though vSphere versions earlier than 5.5 are limited to VMDKs smaller than 2 TB. VMFS6 is used by vSphere 6.5. It supports 512 emulation (512e) mode drives.

What is VMFS file system?

VMFS (Virtual Machine File System) is a clustered file system from VMware that provides storage virtualization. VMFS offers many virtalization-based features, such as: concurrent access to shared storage. Multiple ESXi hosts can read and write to the same storage device at the same time.