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VDS_VOLUME_PLEX_TYPE enumeration

[Beginning with Windows 8 and Windows Server 2012, the Virtual Disk Service COM interface is superseded by the Windows Storage Management API.]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_VPT_UNKNOWN  = 0,
  VDS_VPT_SIMPLE   = 10,
  VDS_VPT_SPAN     = 11,
  VDS_VPT_STRIPE   = 12,
  VDS_VPT_PARITY   = 14
} VDS_VOLUME_PLEX_TYPE;

Constants

VDS_VPT_UNKNOWN

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

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2003 [desktop apps only]

Header

Vds.h

See also

VDS Enumerations
VDS_VOLUME_TYPE
VDS_VOLUME_PLEX_PROP

 

 

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