CLUSCTL_RESOURCE_PREPARE_UPGRADE control code
Used by the Cluster service to notify a resource DLL that a rolling upgrade of the operating systems on a cluster has started. Resource DLLs receive this control code as a ResourceControl parameter. Because the control code is internal, applications cannot use it in a control code function.
Parameters
This control code has no parameters.
Return value
This control code does not return a value.
Remarks
ClusAPI.h defines the 32 bits of CLUSCTL_RESOURCE_PREPARE_UPGRADE (0x014020EA) as follows (for more information, see Control Code Architecture).
| Component | Bit location | Value |
|---|---|---|
| Object code | 24 31 | CLUS_OBJECT_RESOURCE (0x1) |
| Global bit | 23 | CLUS_NOT_GLOBAL (0x0) |
| Modify bit | 22 | CLUS_MODIFY (0x1) |
| User bit | 21 | CLCTL_CLUSTER_BASE (0x0) |
| Type bit | 20 | Internal (0x1) |
| Operation code | 0 23 | CLCTL_RESOURCE_PREPARE_UPGRADE (0x4020EA) |
| Access code | 0 1 | CLUS_ACCESS_WRITE (0x2) |
Requirements
| Minimum supported client |
None supported |
| Minimum supported server |
Windows Server 2016 |
| Header |
|