I am trying to upgrade my customer clustered exchange 2003 to exchange 2007 Our design team is proposed CCR cluster but about me it needs double LUN spice and only the advantage is I will have a separate copy of database but again it is in the same LUN can some one advice me regarding the same If CCR is best Advantages, disadvantages If SCC is best Advantages, disadvantages Thanks in advance

Similar Thread for your reference... http://social.technet.microsoft.com/Forums/en-US/exchangesvravailabilityandisasterrecovery/thread/ec00fafa-393c-46a3-b397-7b377aac9f5e Couple ofResources... Advantages of Cluster Continuous Replication over Single Copy Clusters http://technet.microsoft.com/en-us/library/aa997928.aspx CCR or SCC? http://blogs.msdn.com/douggowans/archive/2009/03/18/ccr-or-scc.aspx UltimatelyCCR wins! Amit Tank | MVP Exchange Server | MCITP: EMA | MCSA: M | http://ExchangeShare.WordPress.com

Thanks Amit In my case both server is going to connect to the sameEMC and Ineed double HDD spice the cost will be very high I may agree if the user don't have storage or if they are in different datacenter ,In this case I am not 100% happy with CCR

I did not read all the stuff in the URL's from Amit, but we are currently a 2007 SCC and I was reading about 2010 SCC support. Well, its not support in 2010, so we will have to move to another HA solution when we migrate to 2010. Unless someone wants to correct me.Brian

I did not read all the stuff in the URL's from Amit, but we are currently a 2007 SCC and I was reading about 2010 SCC support. Well, its not support in 2010, so we will have to move to another HA solution when we migrate to 2010. Unless someone wants to correct me.Brian True. But that is also true for all the 2007 HA solutions. 2010 uses Database Availability Groups for HA.