KevC wrote: ↑
Tue Nov 21, 2017 11:25 am
One option might be to make a duplicate installation on e.g. /archive and set all the permissions to read only.
Then in the real working site you can delete all the topics older than, say, 2 years and have the duplicate as the searchable archive of those topics. Just add a link forum or a header link to it to make it easy to get to.
That would not be an easy option to maintain though if next year some more were required to be archived.
The better solution would be to upgrade your hosting (or change hosts) so that you have more resources.