VDS_VOLUME_PLEX_TYPE enumeration (vds.h)
[Beginning with Windows 8 and Windows Server 2012, the Virtual Disk Service COM interface is superseded by the Windows Storage Management API.]
Defines the set of valid types for a volume plex.
Syntax
typedef enum _VDS_VOLUME_PLEX_TYPE {
VDS_VPT_UNKNOWN = 0,
VDS_VPT_SIMPLE,
VDS_VPT_SPAN,
VDS_VPT_STRIPE,
VDS_VPT_PARITY
} VDS_VOLUME_PLEX_TYPE;
Constants
VDS_VPT_UNKNOWN Value: 0 This value is reserved. |
VDS_VPT_SIMPLE The plex type is simple—it is composed of extents from exactly one disk. This value corresponds to the VDS_VT_SIMPLE value of the VDS_VOLUME_TYPE enumeration. |
VDS_VPT_SPAN The plex type is spanned—it is composed of extents from more than one disk. This value corresponds to the VDS_VT_SPAN value of the VDS_VOLUME_TYPE enumeration. |
VDS_VPT_STRIPE The plex type is striped, which is equivalent to RAID 0. This value corresponds to the VDS_VT_STRIPE value of the VDS_VOLUME_TYPE enumeration. |
VDS_VPT_PARITY The plex type is striped with parity, which accounts for RAID levels 3, 4, 5, and 6. This value corresponds to the VDS_VT_PARITY value of the VDS_VOLUME_TYPE enumeration. |
Remarks
The VDS_VOLUME_PLEX_PROP structure includes a VDS_VOLUME_PLEX_TYPE value as a member to indicate the existing plex type.
Note Additional constants might be added to the VDS_VOLUME_PLEX_TYPE enumeration in future Windows versions. For this reason, your application must be designed to gracefully handle an unrecognized VDS_VOLUME_PLEX_TYPE enumeration constant.
Requirements
Requirement | Value |
---|---|
Minimum supported client | Windows Vista [desktop apps only] |
Minimum supported server | Windows Server 2003 [desktop apps only] |
Header | vds.h |