CLUS_PARTITION_INFO_EX structure (clusapi.h)
Describes a storage class resource volume and file system. It is used as the data member of a CLUSPROP_PARTITION_INFO structure and as the return value of some control code operations.
Syntax
typedef struct CLUS_PARTITION_INFO_EX {
DWORD dwFlags;
WCHAR szDeviceName[MAX_PATH];
WCHAR szVolumeLabel[MAX_PATH];
DWORD dwSerialNumber;
DWORD rgdwMaximumComponentLength;
DWORD dwFileSystemFlags;
WCHAR szFileSystem[32];
ULARGE_INTEGER TotalSizeInBytes;
ULARGE_INTEGER FreeSizeInBytes;
DWORD DeviceNumber;
DWORD PartitionNumber;
GUID VolumeGuid;
} CLUS_PARTITION_INFO_EX, *PCLUS_PARTITION_INFO_EX;
Members
dwFlags
Flags that describes the storage class resource, enumerated by the CLUSPROP_PIFLAGS enumeration.
CLUSPROP_PIFLAG_STICKY (1)
The drive letter is sticky.
CLUSPROP_PIFLAG_REMOVABLE (2)
The storage class resource is removable.
CLUSPROP_PIFLAG_USABLE (4)
The storage class resource is formatted with a file system that is usable by the Cluster service.
CLUSPROP_PIFLAG_DEFAULT_QUORUM (8)
The partition should be used to store quorum files if no partition is specified in the SetClusterQuorumResource function. For Physical Disk resources, the smallest NTFS partition larger than 50MB automatically receives this flag.
szDeviceName[MAX_PATH]
Device name for the storage class resource, such as "C:". No backslashes are included.
szVolumeLabel[MAX_PATH]
Volume label for the storage class resource.
dwSerialNumber
Serial number of the storage class resource volume.
rgdwMaximumComponentLength
Maximum length, in characters, of a file name component supported by the specified file system. A file name component is that portion of a file name between backslashes.
dwFileSystemFlags
Flags that describes the file system. One or more of the following flags are valid.
FS_CASE_SENSITIVE (1)
The file system supports case-sensitive file names.
FS_CASE_IS_PRESERVED (2)
The file system preserves the case of file names when it places a name on the storage class resource.
FS_UNICODE_STORED_ON_DISK (4)
The file system supports Unicode in file names as they appear on storage class resource.
FS_PERSISTENT_ACLS (8)
The file system preserves and enforces access control lists (ACLs).
szFileSystem[32]
Name of the file system, such as "FAT" or "NTFS".
TotalSizeInBytes
Specifies the total size, in bytes, of the volume. This value may not be properly aligned and should be accessed using UNALIGNED pointers.
FreeSizeInBytes
Specifies the size, in bytes, of the unallocated space on the volume. This value may not be properly aligned and should be accessed using UNALIGNED pointers.
DeviceNumber
The device number
PartitionNumber
The partition number.
VolumeGuid
The globally unique identifier associated with the volume.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | None supported |
| Minimum supported server | Windows Server 2008 Datacenter, Windows Server 2008 Enterprise |
| Header | clusapi.h |