An instance configuration tagged with the DUAL_REGION quorum type forms
a write quorum with exactly two read-write regions in a multi-region
configuration.
This instance configuration requires failover in the event of
regional failures.
MultiRegion
An instance configuration tagged with the MULTI_REGION quorum type
forms a write quorum from replicas that are spread across more than one
region in a multi-region configuration.
Region
An instance configuration tagged with REGION quorum type forms a write
quorum in a single region.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-28 UTC."],[],[],null,["# Google Cloud Spanner Instance Administration v1 API - Enum InstanceConfig.Types.QuorumType (5.1.0)\n\nVersion latestkeyboard_arrow_down\n\n- [5.1.0 (latest)](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/latest/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [5.0.0](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/5.0.0/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [4.6.0](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/4.6.0/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [4.5.0](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/4.5.0/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [4.4.0](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/4.4.0/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [4.3.0](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/4.3.0/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [4.2.0](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/4.2.0/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [4.1.0](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/4.1.0/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [4.0.0](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/4.0.0/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [3.15.1](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/3.15.1/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [3.14.0](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/3.14.0/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [3.13.0](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/3.13.0/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [3.12.0](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/3.12.0/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [3.11.0](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/3.11.0/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [3.10.0](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/3.10.0/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [3.9.0](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/3.9.0/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [3.8.0](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/3.8.0/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [3.7.0](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/3.7.0/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [3.6.0](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/3.6.0/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType)\n- [3.5.0](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/3.5.0/Google.Cloud.Spanner.Admin.Instance.V1.InstanceConfig.Types.QuorumType) \n\n public enum InstanceConfig.Types.QuorumType\n\nReference documentation and code samples for the Google Cloud Spanner Instance Administration v1 API enum InstanceConfig.Types.QuorumType.\n\nIndicates the quorum type of this instance configuration.\n\nNamespace\n---------\n\n[Google.Cloud.Spanner.Admin.Instance.V1](/dotnet/docs/reference/Google.Cloud.Spanner.Admin.Instance.V1/latest/Google.Cloud.Spanner.Admin.Instance.V1)\n\nAssembly\n--------\n\nGoogle.Cloud.Spanner.Admin.Instance.V1.dll"]]