storage

Table of Contents

Storage

Databases persist data and retrieve data.
Most databases do persist data to disk.

There are two types of memory:

Disk & Memory

Disk

Persists to the hard drive. Even if the database crashes, if it boots up again, data is saved.

Memory

Does not persist data. If the server crashes, the data disappears.

Prev: [network-protocols](network-protocols.html) Next: [latency-and-throughput](latency-and-throughput.html)