Enum VssProtectionLevel

Defines the set of volume shadow copy protection levels.

public enum VssProtectionLevel

Name	Description
OriginalVolume	Specifies that I/O to the original volume must be maintained at the expense of shadow copies. This is the default protection level. Shadow copies might be deleted if both of the following conditions occur: A write to the original volume occurs. The integrity of the shadow copy cannot be maintained for some reason, such as a failure to write to the shadow copy storage area or a failure to allocate sufficient memory.
Snapshot	Specifies that shadow copies must be maintained at the expense of I/O to the original volume. All I/O to the original volume will fail if both of the following conditions occur: A write to the original volume occurs. The corresponding write to the shadow copy storage area cannot be completed for some reason, such as a failure to write to the shadow copy storage area or a failure to allocate sufficient memory.