• If the server is that important, monitoring should’ve woken up the emergency response team long before the database crashed.

    It’s annoying to see Linux still doesn’t have usable disk quotas the way Windows 2000 had them, but the same is true for ACLs and many other things other operating systems have implemented decades before. I suppose you could repartition your disk to compensate for the lack of quote support by default, but there are better options.