Can occur during sudden power outages or ESXi host crashes while metadata updates are in progress.
vim-cmd hostsvc/datastore/attach <datastore_id>
This lists all detected VMFS volumes, including those marked as "snapshot" or "resigned" . If you see your volume with a (snapshot) or (resigned) tag, reattach it with: recover vmfs 6 datastore
The most critical rule is to avoid writing any new data to the affected LUN to prevent overwriting the remaining VMFS structures.
VMFS 6 uses a unique signature to identify the file system. The signature is located at the beginning of the datastore. Use a tool like dd to read the first 512 bytes of the device: Can occur during sudden power outages or ESXi
Recovering a can be a complex task, as VMware’s native file system is not natively recognized by Windows or standard Linux distributions . Whether your datastore is missing due to metadata corruption, accidental deletion, or a hardware failure, follow this guide to understand the recovery process and available tools. Common Reasons for VMFS 6 Datastore Loss
Before we dive into the recovery process, it's essential to understand the common causes of VMFS 6 datastore loss: VMFS 6 uses a unique signature to identify the file system
To recover a datastore (e.g., after a partition table loss, accidental deletion, or metadata corruption), a critical piece is:
Identifying the root cause is the first step toward successful recovery: