How can I move a database (.edb file) in another storage group on same server. If I move database in another storage group it will be some disconection for users ? thx

Yes there will be, you will have to dismount the database, there is no other option What is the size of database? What is the issue you are facing?Gulab | MCTS-MCITP: 2007 | MCTS-MCITP: 2010 | Skype: gulab.mallah

i want to install mailbox role and hub transport role on another server for backup. And every group sotage must have only one databse file (ebd). May be it is a ideea to create another database and schedule to move mailboxes in the new database during the night.

I believe you are running CCR on 2007! Yes you can do it, create another database and move the mailbox, thats a good ideaGulab | MCTS-MCITP: 2007 | MCTS-MCITP: 2010 | Skype: gulab.mallah

You can also create another DB in another SG and then move the mailboxes in there.