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What NVMe storage actually changes, and what it does not
It is not a general speed increase. It changes specific operations - world saves, restarts, backups, database writes - and leaves others exactly where they were.
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NVMe appears in every hosting comparison and is rarely explained. It is not a faster server; it is faster storage, which matters exactly as much as your workload touches the disk.
Where it shows
- World and save writes, which is the periodic hitch players notice.
- Server start-up, especially for anything that loads a large world or a long mod list.
- Backups and restores, which are almost entirely a disk operation.
- Database queries that miss the cache and have to read.
Where it does not
Tick rate on a CPU-bound server. Network latency. Anything already sitting in memory. If your problem is that the simulation cannot keep up, the disk was never involved.