GSM-45646
ADD SHARD only registers the database with GDS. Replication is not configured on a newly added database and data from other databases is not distributed to it until a DEPLOY is executed.
With DG replication, a shard can be added as a standby to already existing DG configuration. In this case, there is no need to re-shard the data.
With DG replication, a shard can be added as a standby to already existing DG configuration. In this case, there is no need to re-shard the data.
Cause
GDSCTL help message.