Repair a VDisk
1) Select “Integrated Storage”
2) Choose the datastore that contains the VDisk that you want to repair.
3) A list of the VDisks that are hosted on the datastore are shown. Drives that are in a degraded state will show that they are not “In sync” and be highlighted in red. Select the degraded VDisk.
4) A degraded VDisk will show “Consistency” reporting as “Degraded”. Click the “Repair” option and then the VDisk will attempt to repair if there is at least one good replica per stripe. If there is then the VDisk will be repaired.