The LVMVG agent ensures that the ODM is in sync with any changes to the volume group since it was last imported on the system. This sync happens only if this attribute is set to 1. The agent uses the volume group's timestamp ODM entry to get the time when the volume group was last imported on the system.

The sync operation occurs when the timestamp value in the volume group's timestamp ODM entry is older than the time stamp value in the volume group's descriptor area. The timestamp value in the VGDA area of a volume group is updated after creating or deleting logical volumes, and adding or removing physical volumes. The sync operation also occurs if PVID file is found on the node and SyncODM attribute is set to 1. The PVID file is present if updatepv action has been executed. In this case the sync operation is performed without comparing the time stamp values.