upgrading to a different achitecture

[Chris Harms]

Hello,

We will be migrating our cyrus server from x86 to x86_64 for an interim 
period and then likely returning to x86 after some time.  We will be 
upgrading from 2.2.x to 2.3.x as well, and I am wondering if there is a 
way to preserve the per mailbox databases, specifically the seen state?  
I have run through a test of this process once without luck retaining 
the information.  Is there a way to do this moving to x86_64 and then 
likewise moving back to x86?

Thanks,
Chris