Generally, the migration procedure backs up some data on the old server, transferring the backup file to the new server and then restoring the backup file there. For such a complex environment, the transfer of data to another server is not an easy option.
Of course, it’s possible to move all the data piece by piece using the native backup/restore tools for each server component and file copy. However, it often takes an unreasonable amount of work-time and manual operations.
The other disadvantage is that it’s not possible to make a seamless transition if the services on the old server are used actively. Some data will be lost in transfer staying on the old server or some services will be down during the transfer.
So it is wise to backup a server by installed control panel ( if it have ) with most of the facilities & don’t loose any data or getting server down.
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