cPanel migration of 25GB site and a best way to do it..

Help! (Home for newbies)
1

Hi,

I have a big move next month where I will need to migrate my large vBulletin forum from a WHM/cPanel environment to a Virtualmin environment. I have moved some smaller sites without issue using the virtualmin migration tool, but nothing this large. My forum has a 1.8GB database and 20+ GB of files. I just wanted to get some ideas of the best way to do this. I am thinking this will work:

  1. temporarily block all traffic to my server (so load is minimal)
  2. run a full cPanel backup for my domain, I am assuming this will create a 15+ GB gzip
  3. on the new domain do a virtualmin migration, point virtualmin to the cpanel backup file on the old server

My concern is the file being too big and virtualmin migration timing out. Should I transport the cpanel file to the new server instead, then run it locally (or does the migration do this anyway). Does anyone have experience with a large cPanel site to virtualmin migration? How did it go for you?

Any info appreciated. Thanks!

2

Howdy,

With the size of your domain, I think my suggestion would be to use the command line tools to perform your migration. Then, you won’t run the risk of a browser timeout after it’s part-way complete.

To do that, I’d suggest copying your cPanel backup to the Virtualmin server, then as root, run a command such as this one:

virtualmin migrate-domain --source /path/to/backup.tar.gz --type cpanel

You can see a full list of options by running “virtualmin migrate-domain” with no parameters.

-Eric