What is write-through caching and how does it work?

What is write-through caching and how does it work?

Write-through caching is a caching strategy where data is written to both the cache and the underlying storage simultaneously. This ensures that the cache always has the most up-to-date data.

What are the advantages of using write-through caching?

The main advantages include data consistency, simplicity in implementation, and reduced risk of data loss since data is written directly to storage.

Are there any disadvantages to this approach?

Yes, the main disadvantage is that it can be slower than other caching methods, like write-back caching, because every write operation involves both the cache and the storage.

In what scenarios is write-through caching preferred?

It's preferred in scenarios where data integrity is critical, such as in financial applications or databases where consistency is essential.