VDS_TRANSITION_STATE 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[Beginning with Windows 8 and Windows Server 2012, the Virtual Disk Service COM interface is superseded by the Windows Storage Management API.]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 the valid transition state values for a VDS object.

Syntax

typedef enum _VDS_TRANSITION_STATE {
  VDS_TS_UNKNOWN = 0,
  VDS_TS_STABLE = 1,
  VDS_TS_EXTENDING = 2,
  VDS_TS_SHRINKING = 3,
  VDS_TS_RECONFIGING = 4,
  VDS_TS_RESTRIPING = 5
} VDS_TRANSITION_STATE;

Constants

VDS_TS_UNKNOWN Value: 0 This value is reserved.
VDS_TS_STABLE Value: 1 The object is stable. No configuration activity is currently in progress.
VDS_TS_EXTENDING Value: 2 The object is being extended.
VDS_TS_SHRINKING Value: 3 The object is being shrunk.
VDS_TS_RECONFIGING Value: 4 The object is being automagically reconfigured.
VDS_TS_RESTRIPING Value: 5 The object is being restriped. Windows Server 2008, Windows Vista and Windows Server 2003:  This value is not supported.

Remarks

Transition state enumeration values apply to the VDS objects as shown in the following table. Y indicates that the value applies to the object, and N indicates that the value does not apply to the object.

Transition state enumeration value	LUN	LUN plex	Volume	Volume plex
VDS_TS_UNKNOWN	Y	Y	N	N
VDS_TS_STABLE	Y	Y	Y	Y
VDS_TS_EXTENDING	Y	Y	N	N
VDS_TS_SHRINKING	Y	Y	N	N
VDS_TS_RECONFIGING	Y	Y	N	N
VDS_TS_RESTRIPING	Y	Y	N	N

 

The VDS_LUN_PROP, VDS_LUN_PLEX_PROP, VDS_VOLUME_PROP, VDS_VOLUME_PROP2, and VDS_VOLUME_PLEX_PROP structures include a VDS_TRANSITION_STATE value as a member to report the transition state of each object.

If your application encounters a VDS_TRANSITION_STATE value that it does not recognize, it should display the transition state as unknown. It should not attempt to map the unrecognized transition state to another transition state.

Note  Additional constants might be added to the VDS_TRANSITION_STATE enumeration in future Windows versions. For this reason, your application must be designed to gracefully handle an unrecognized VDS_TRANSITION_STATE 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

See also

VDS Enumerations

VDS_LUN_PLEX_PROP

VDS_LUN_PROP

VDS_VOLUME_PLEX_PROP

VDS_VOLUME_PROP

VDS_VOLUME_PROP2