It's an average of 8GB per database, I guess he serves multiple clients and decided to "segregate" each client on its instance. If it's acceptable for the business it's nothing wrong with his setup.
reply> Several live mobile apps serving hundreds of thousands of users
replyIt seems like he's having a database for each app.
Could be, but this doesn't change my statement: if it's acceptable from the business standpoint there is nothing wrong with this setup.
reply> 30 db instances
replyThey didn't say that and the article didn't allude to that. 1 instance with 30 databases.
Ah yes that's probably true, but still having 30 apps in a single db instance doesn't seem better...
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