Have a question regards to Exchnage GAG and its LUNssinc ei have little knowledge on both Exchnage2010 and SME.
As i understand there will be multiple copy of DB in more than two servers and logs are replayed to keep update copy of the database.
Here is my client place i noticed that they have three luns for each mailbox database , one for db, another one for db_log and another lun for log.
What this third pun for log?
Is this something to do with SME?