A healthcare company uses MirrorView replication between VNX located at their two data centers.
They use the Write Intent Log (WIL) feature on both VNX. There was an outage at the production
data center and production workload was transferred to the DR data center. When then
production workload was failed back to the production data center, the customer found all
MirrorView LUNs completed a full re-synchronization. What caused this situation?

A.
The WIL information is stored on the SP Cache and was lost during the outage of the
production data center.

B.
The WIL information was lost during the production data center outage and a full resynchronization of all the LUNs was required.

C.
The WIL information was not transferred from the production data center to the DR data center
after the outage.

D.
The WIL information is non-relevant after the MirrorView secondary images have been
promoted to primary image.