Configuring StorageGRID quorum semantics for strong-global consistency
Applies to
StorageGRID 12.0
All platforms and VMs
Description
Allow Strong-global consistency control to provide site failure tolerance for client requests when StorageGRID systems have three or more sites.
- Strong-global consistency in StorageGRID 11.9 and earlier ensures read-after-write consistency across all sites, but requires ALL sites to be available for client writes and deletes to be successful.
- StorageGRID 12.0 supports Quorum semantics for strong-global consistency, allowing for site failure tolerance for client requests when grids have three or more sites, while still ensuring read-after-write consistency across all sites.
This article provides the procedure and support information about changing the behaviour of strong-global consistency between Quorum semantics and previous semantics.