Questions about moving Log File Location in Exchange 2010

The vendor that set up our Exchange 2010 environment, put the transaction log files in the same directory as the Database.  I know this is bad practice and it was done before I knew about it.

Our backup system will not handle this (EMC’s Networker) and we need to move the logs to another location.

Currently we are running a Windows backup on Exchange and then backing up to tape and I have Circular Logging enabled to keep the space the logs take up to a minimum.

I have created a new drive just for the logs and need to move them.

I found a shell command that says it should just move the logs and not the database  ("Move-DatabasePath –identity databasename –logFolderPath path")

The Questions:

--Is the Shell command above the correct one to just relocate the logs?

--With Circular Logging running and the total amount of Data for the logs relatively small, any idea how long it will take to relocate the logs?

--How will this affect the users?—Does it dismount the Mailbox DataBase?

Thanks, Tad