The total journal size needs to be 40GB as a minimum so 4 x 10GB LUNs will be fine.  Regards,  Rich
Hello,  I know that the distributed CG minimum journal size is 40GB. Does this have to be a single LUN of size 40 GB or can I have mutiple LUNs that make together 40 GB or more?  I will be changing an existing regular CG to distributed config and have many 10GB vols as JRLs for the CG, so trying to make sure if I have change JRL volumes also before I convert to distributed.   Thanks 
RP Distributed CG Journal Size