How long should import take?

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I have a couple of sites with my larger site (VB 3.8) having 76K users, 3.5M posts and 149K attachments... any best estimates on how long it would take to import to XF?

 

[AndyB]

16 hours is my guess.

 

[Mike Edge]

16 hours is my guess.

Yeap as Andy said, I'd plan for 12-24 hours for the import to complete, even more if your server is not very powerful.

 

[Ridemonkey]

Or... it could take a couple hours with the Big Board Importer:

https://xenforo.com/community/resources/vbulletin-big-board-importer-vbulletin-3-vbulletin-4.1981/