Hello, I am not much into servers. Actually now i have a full dedicated server and going to buy new power-full server for my sites. May i know how to transfer all the data from old server to the new server without changing anything? I want to transfer everything. User accounts, data, db's, emails etc. Please guide. Thanks
You should be able to login to WHM on the new server and go to Transfers > Copy multiple accounts/packages from another server. First make sure both firewalls are off as depending on your settings they could stop the transfer. I am not sure how big your sites are, sometimes bigger sites are harder to move.
Are they in the same datacenter? If they are in the same datacenter, try and get a vlan port or route in between the two servers. That way, when you do the transfer, the DC won't make the transfer come out of your bandwidth. If they are in the same datacenter, your speed of transfer should go fairly quick.
You can ask your new web host to help you with server migration. You can get managed hosting or just to get migrated, which in general means one time fee.
This is by far the easiest way to do it. as longest both of the servers are using the same version of cpanel and other resources.