You may want to look at this EqualLogic KB article: support.equallogic.com/.../solutions.aspx (support login required), once on the page, search the KB for “Snapshot/Replica space getting used up too quickly”. -joe
Hi We are seeing large snapshot size on our Exchange 2010 Mailbox server, connected to a PS6010 Group. Read somewhere that snapshot size can be reduced by not running the Exchange 2010 maintenance tasks between snapshots (which runs db defrag) Is there any best practice about this -  describing setup/issue/solution? Regards, Standal 
ASM/ME - Large snapshot size Exchange 2010