Before configuring DR services, check the storage environment where LUNs reside at the production and DR ends. If any environment does not meet requirements, modify its configurations.
The following check items need to be checked and configured on storage systems at the production end and DR end.
Check whether the remote replication status at the production and DR ends is normal.
Delete the LUNs mapped to the DR or test hosts to ensure the corresponding disk drive will not be occupied by other LUNs.