One or few vSAN objects are stuck during resync as seen under vSAN cluster > Monitor > Resyncing Objects.
Object is reported as reduced-availability-with-active-rebuild.
Resyncing object size does not reduce.
There is enough space on the vSAN datastore for the resync to complete.
Expand the object in resync state, one or more components may report as "Decommissioning".
Placing host in maintenance with 'Ensure Accessibility" or "Full Data Migration" and rebooting host does not help.
Changing storage policy of the object does not help.
VMware vSAN 7.0
VMware vSAN 8.0
The object stuck at resync is a virtual disk with disk capacity in a fraction number. Check the disk size under VM > edict settings > hard disk
Or run this command below for the object UUID from any host in the cluster:
# esxcli vsan debug object list -u ########-####-####-####-############
Object UUID: ########-####-####-####-############
Version: 15
Health: reduced-availability-with-active-rebuild
Owner: <host-name>
Size: 1007.20 GB
Increase the disk capacity to a non-fraction number.
Note: If this option is greyed out, the disk may be running on snapshots
The component with resync issue report as reconfiguring:
# esxcli vsan debug object list -u ########-####-####-####-############
Component State: RECONFIGURING, Bytes To Sync: 2621440 (0.00GB), Address Space(B): 260065722368 (242.21GB), Disk UUID: ########-####-####-####-############, Disk Name: naa.#################:2, Transient: 1
Votes: 1, Capacity Used(B): 265306505216 (247.09GB), Physical Capacity Used(B): 260072013824 (242.21GB), Host Name: <host-name>