Run esxcli storage filesystem list to identify the state of your volume. If it’s missing or showing errors, note the device identifier (e.g., naa.600... ).
Stay safe, back up often, and always use vmkfstools with caution. repair vmfs volume
Sometimes, automatic mounting fails but a manual mount works. Run esxcli storage filesystem list to identify the
Never run repairs on an actively used VMFS volume. Put the ESXi host into maintenance mode or, ideally, boot into a recovery environment or use a Linux VM with direct LUN access. note the device identifier (e.g.
esxcli storage vmfs snapshot list