When you use the wizzard you can see which files must migrated ( Database Selection / From - To ). you cann read on the snap manager documentation what is recomended for use snap manager for sql. But the message comes everytime you use the wizzard. it means it will not migrate the database files the message comes nevertheless. But if you not shure you should start migration with planed downtime.
How long it will take for the migration?
How fast your storage can read write the data
It will need to run the migration task for all server install the snap manager?
Yes, if you will use the snapManager sql backup the database files must organized as snapmanagersql compatible. As after the SnapManager Configuration Wizzard is complete you can use snapmanagersql for backup operation.
But on second DB server I still have the problem in creating the Snap Drive volume. No FC port or ESX iSCSI show for select when create the drive. Any idea what is happening?
You use ESXi with vCenter and SAN ? The Initiator groups listed should be the same as you configured on storagesystem / show all initator groups on wizzard. If you use ha it is important to use the initiator group with inclueded all esxi hosts hba.