ConditionalMount

[The ConditionalMount property is no longer available for use as of Windows Server 2012. Instead, use the DiskRunChkDsk property.]

This property is not supported.

Attribute	Value
Data type	DWORD
Access	Read/write
Status	Optional
Structure	CLUSPROP_DWORD
Minimum	FALSE (0) always mount the disk
Maximum	TRUE (1) conditionally mount the disk
Default	TRUE

Remarks

Setting ConditionalMount to FALSE causes the operating system to attempt to mount the disk regardless of chkdsk failures, if any. With ConditionalMount set to TRUE (the default), the operating system will not attempt to mount a disk if chkdsk reports errors for the disk. Note that if chkdsk does not run, it will not produce errors, and therefore the operating system will attempt to mount the disk regardless of the ConditionalMount setting. The SkipChkdsk property determines if chkdsk runs or not.

The following table summarizes the interaction between SkipChkdsk and ConditionalMount.

SkipChkdsk value	ConditionalMount value	Chkdsk runs?	Disk mounted?
FALSE	TRUE	yes	If chkdsk reports errors, no. Otherwise, yes.
FALSE	FALSE	yes	yes
TRUE	TRUE	no	yes
TRUE	FALSE	no	yes

Forcing a disk to mount despite errors can result in loss of data. Use caution when changing these properties.

Examples

The property value portion of a property list entry for ConditionalMount can be set with the following example code.

DWORD          ConditionalMountData = FALSE;
CLUSPROP_DWORD ConditionalMountValue;

ConditionalMountValue.Syntax.dw = CLUSPROP_SYNTAX_LIST_VALUE_DWORD;
ConditionalMountValue.cbLength  = sizeof(DWORD);
ConditionalMountValue.dw        = ConditionalMountData;

Requirements

Minimum supported client	None supported
Minimum supported server	Windows Server 2003 Enterprise, Windows Server 2003 Datacenter
End of server support	Windows Server 2003 Datacenter, Windows Server 2003 Enterprise

See also

SkipChkdsk