What is Data Persistence?
FAQs
The four device states for persistent storage acquisition:
- Pure in-memory storage: This potentially offers the least amount of persistence.
- In-memory storage: This takes periodic snapshots to maintain persistence.
- Disk-based storage: This triggers update-in-place writes.
- Commitlog-based storage: This includes all traditional OLTP databases.
Persistence storage is any data storage device that keeps information even after power to that device is powered off.
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