Recped, I have always been somewhat confused and skeptical about the amount of computer horsepower one gets under any of the plans from various companies, including the $39/month plan we're initially signing up on with Driven 2. After all, I have a 64 gb card in my phone and about 500 gb SSD in my 8 year old laptop.
As I understand it from Dave, we are currently on a cloud host program with Siteground, which was recently bumped up from an $80/month plan to a $120/month plan.
My understanding is that Driven 2's 8gb is a storage allocation just for "attachments", which in our case is probably almost all photos. Here's how Ken Payne responded to some of my questions, which I don't fully understand. Perhaps you or someone more technically savvy can translate.
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"The server setup is pretty fast. We don't oversell server space, whereas some companies will often pack as many virtual machines on a server as possible (Godaddy is particularly bad about this). Plus I don't set them up with default MySQL database and Apache web server setttings. I apply numerous optimization tweaks to both which on average cut page response time in half."
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"The 8GB storage displayed is mainly to give you a more realistic understanding of how many attachments you can store, rather than the actual space allocated. You actually would have 25GB of space.
"Here's why I display 8GB, versus for example a traditional hosting service with 25GB of space. Their 25G includes the space used by web server logs for your site, disk space used by your database, backups space, your forum installation including attachments, etc.
"But with the Xenforo specific hosting we have, if you were to have 8GB of attachments the database might be another 1 to 2 GB and a few hundred megabytes for logs and Xenforo for a total of roughly 10GB. Factor in backups and it'll be about 20GB used.
"Its not a hard set limit, and its there mainly to prevent someone from thinking they can signup a massive forum for the smaller plan when it would be overuse of computing resources. I'm not certain how much you are using now, but most forums I migrate of your size might have 1/2 to 5 GB of attachments. There were some which had far more, such as a photography forum, but they are the exception."
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In any event, we can upgrade a long way before we reach the $120/month Siteground fee, which does not include any Xenforo service. Ken Payne being a Xenforo guy, all of his plans include free Xenforo service in addition to the hosting.
We'll find everything out, eventually.