Exchange Failover Cluster Problems

I have a virtual setup for exchange 2010 sp1 ur6: 2 cas, 2 mbx DAG with my VM's spread across 4 hosts. I have 6 databases with 3 each set to active on each mbx. This morning all of the db's were mounted on mbx2. When I tried to activate the database copy to to their original home the  users in that DB lost access to email. The database showed mounted on mbx1 and it showed healthy/mounted in a get-mailbodatabasecopystatus. As soon as I moved it back access was restored. Any ideas?
grahaminatorAsked:
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grahaminatorAuthor Commented:
I sorted it. It was a problem with the replication service on MBX1. After looking through the logs on the MBX1 I found that it had run out of memory and services had stopped. After startdagmaintmode I rebooted MBX1 then mounted the active db's. All is well.
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James HIT DirectorCommented:
In EMC, what do you get when you type: Get-ClientAccessArray
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James HIT DirectorCommented:
Glad you were able to sort it out.
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grahaminatorAuthor Commented:
Thanks for the help Spartan
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