What is direct I/O, and why does ClickHouse Managed Postgres use it for backups?

From the source: ClickHouse Blog

ClickHouse Managed Postgres uses direct I/O and stripe-sized reads to keep backups fast while protecting the page cache and query latency.

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Originally published by ClickHouse Blog on 2 Oct 2026. Techarda links to the original rather than republishing it. Read the full article →

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