> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/gridgain/gridgain-9/architecture/replication-and-consistency.md).

# Replication and Consistency

How GridGain 9 replicates partitions and keeps data consistent — consistency guarantees, RAFT replication, and high availability mode.

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[Data Consistency and Replication](/docs/gridgain/gridgain-9/architecture/replication-and-consistency/data-consistency-and-replication.md)
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How GridGain 9 maintains data consistency through RAFT replication and consensus, the guarantees it provides, and how the cluster behaves during node and network failures.
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[High Availability Mode](/docs/gridgain/gridgain-9/architecture/replication-and-consistency/high-availability-mode.md)
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Configure high availability mode on GridGain 9 distribution zones to prioritize partition availability over strict consistency, enabling automatic recovery from majority replica loss.
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