// Copyright (c) 2005 DMTF. All rights reserved. [Deprecated { "No value" }, Version ( "2.7.0" ), UMLPackagePath ( "CIM::Device::SccExtents" ), Description ( "Deprecated. Snapshots are now modeled in a more abstrct way " "using StorageExtent and StorageSynchronized. \n" "The Snapshot class is an optional construct. It can be used to " "represent an Extent that contains a full copy of another " "Extent, or the changes to that Extent when performing a " "delta-based (delta before or delta after) copy. \n" "Snapshot\'s definition in CIM is not equivalent to the act of " "creating a volume or file-based snapshot, or a point in time " "copy. It is at a much lower level and represents the use of " "storage to hold a copied image of an Extent, or to hold " "changes to an Extent. Use of the Snapshot object when making a " "full copy is only recommended if the purpose is to describe " "the existence of a copy. (This use will be very infrequent.) " "The problem with describing an Extent solely as a \'snapshot\' " "is that when the snapshot/copy is broken, the object must be " "destroyed. Typically, this object still holds valid data, and " "would have to be reinstantiated. If the \'full copy\' object " "is to be treated as a StorageVolume or more general Extent, " "then it should be modeled as such from the beginning - i.e., " "not as an instance of Snapshot but as an instance of a generic " "StorageExtent or StorageVolume. In this case, the Synchronized " "association would be used to describe that one StorageExtent " "is synchronized with another. \n" "When describing a delta-based snapshot/point in time copy, the " "Snapshot object represents the store holding the before/after " "image changes to the original Extent. For example, when doing " "a \'delta before\' Snapshot, the resultant target would be " "modeled as a StorageExtent that is BasedOn the original Extent " "and the instance of Snapshot (that holds the changes to the " "original Extent)." )] class CIM_Snapshot : CIM_StorageExtent { [Deprecated { "CIM_Synchronized.SyncMaintained" }, Description ( "True indicates that the snapshot is synced." )] boolean IsSynced; [Deprecated { "CIM_Synchronized.WhenSynced" }, Description ( "The time stamp indicating when the sync occurred." )] datetime SyncTime; };