A customer has two IP Replicated VNX systems: VNXA is the Primary system; VNXB is the DR
system. VNXA is configured with VDMs containing CIFS servers, has secmap cache disabled, and
runs a primary Usermapper. VNXB is configured as a DR target system and runs a secondary
Usermapper.
During failover testing, VNXA is failed over and shut down to simulate a site outage. The small
number of Linux users that access the CIFS data via NFS find that they no longer have the same
permissions as when accessing from the primary site. Additionally, the UID ownership of many
files has changed. On investigation it is found that the secondary Usermapper Db contains far
fewer, and different, mappings compared to the primary.
Why would this be the case?

A.
The primary Usermapper Db is not replicated to the secondary Usermapper.

B.
The DR site must be promoted to become a primary Usermapper on failover.

C.
The primary Usermapper Db had not completed synchronizing before failover.

D.
The secondary Usermapper Db has become corrupted after failover.