When creating an RCG between two peered systems, there must be enough journal capacity available on each system. For both PowerFlex 3 and 4, each SDR must be represented by a minimum of 108 GB of journal capacity. A minimally configured system with only three SDRs must have a minimum of 324 GB of journal capacity.
If insufficient journal capacity exists on either system, PowerFlex produces an error, Could not allocate capacity for Replication Consistency Group during Replication Consistency Group creation as shown in the figures below for UI and CLI. Note that the error may be accompanied by additional information that is related to the connection handshake. To resolve, increase the journal capacity and re-try RCG creation.