Home > Storage > PowerMax and VMAX > Storage Admin > Dell PowerMax and VMware vSphere Configuration Guide > Datastore refresh
In test environments, it may be desirable to refresh the linked target with the original snapshot at some point. The refresh procedure is slightly different depending on whether the linked target device was resignatured or not. Both processes are included below.
When the linked target is resignatured, as recommended, and then refreshed, the new VMFS signature is overwritten. Therefore it is essential the datastore is removed and the linked target is not in use during the relink procedure. To ensure a clean refresh, the following steps should be used.
When the linked target is mounted with the same signature, a refresh of the linked target will not overwrite it and therefore the datastore does not have to be deleted. There are two different procedures that can be used. The first one ensures a clean refresh but takes longer. The second is quicker but has the potential to cause issues. Either is acceptable. The following are the recommended steps for a clean refresh.
The following steps provide a quicker refresh.
The following are some caveats around this procedure.
It is possible some other unforeseen event may occur; hence the clean refresh is recommended.