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3.1.4.3.7.20 CLUSCTL_CLUSTER_IS_READY_FOR_UPGRADE

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The CLUSCTL_CLUSTER_IS_READY_FOR_UPGRADE control code SHOULD<212> determine whether all nodes in a cluster support an upgrade to a higher operational version.

Servers that do not support this control fail this method by returning error code 0x00000001 (ERROR_INVALID_FUNCTION).

Upon accepting this method, the server proceeds only after determining that no upgrade to the cluster operational version is in progress, waiting for any in-progress upgrade to complete if necessary.

The server MUST determine whether all nodes in the cluster support an increment of the current major version by one. If not, the server MUST return 0x00001755 (ERROR_CLUSTER_UPGRADE_INCOMPATIBLE_VERSIONS). If so, the server MUST return 0x00000000 (ERROR_SUCCESS).

The server MUST accept a CLUSCTL_CLUSTER_IS_READY_FOR_UPGRADE cluster control code request if its protocol server state is in the read/write state, as specified in section 3.1.1.