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version 1.1.2.1, 2012/01/24 13:50:09
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version 1.1.2.2, 2012/02/15 17:46:24
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// Copyright (c) 2005 DMTF. All rights reserved. |
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// <change cr="ArchCR00066.004" type="add">Add UmlPackagePath |
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// qualifier values to CIM Schema.</change> |
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// ================================================================== |
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// CIM_Snapshot |
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// ================================================================== |
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[Deprecated { "No Value" }, |
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Version ( "2.7.0" ), |
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UMLPackagePath ( "CIM::Device::SccExtents" ), |
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Description ( |
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"Deprecated. Snapshots are now modeled in a more abstrct way " |
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"using StorageExtent and StorageSynchronized. \n" |
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"The Snapshot class is an optional construct. It can be used to " |
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"represent an Extent that contains a full copy of another " |
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"Extent, or the changes to that Extent when performing a " |
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"delta-based (delta before or delta after) copy. \n" |
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"Snapshot\'s definition in CIM is not equivalent to the act of " |
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"creating a volume or file-based snapshot, or a point in time " |
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"copy. It is at a much lower level and represents the use of " |
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"storage to hold a copied image of an Extent, or to hold " |
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"changes to an Extent. Use of the Snapshot object when making a " |
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"full copy is only recommended if the purpose is to describe " |
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"the existence of a copy. (This use will be very infrequent.) " |
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"The problem with describing an Extent solely as a \'snapshot\' " |
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"is that when the snapshot/copy is broken, the object must be " |
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"destroyed. Typically, this object still holds valid data, and " |
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"would have to be reinstantiated. If the \'full copy\' object " |
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"is to be treated as a StorageVolume or more general Extent, " |
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"then it should be modeled as such from the beginning - i.e., " |
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"not as an instance of Snapshot but as an instance of a generic " |
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"StorageExtent or StorageVolume. In this case, the Synchronized " |
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"association would be used to describe that one StorageExtent " |
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"is synchronized with another. \n" |
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"When describing a delta-based snapshot/point in time copy, the " |
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"Snapshot object represents the store holding the before/after " |
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"image changes to the original Extent. For example, when doing " |
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"a \'delta before\' Snapshot, the resultant target would be " |
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"modeled as a StorageExtent that is BasedOn the original Extent " |
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"and the instance of Snapshot (that holds the changes to the " |
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"original Extent)." )] |
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class CIM_Snapshot : CIM_StorageExtent { |
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[Deprecated { "CIM_Synchronized.SyncMaintained" }, |
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Description ( "True indicates that the snapshot is synced." )] |
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boolean IsSynced; |
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[Deprecated { "CIM_Synchronized.WhenSynced" }, |
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Description ( |
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"The time stamp indicating when the sync occurred." )] |
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datetime SyncTime; |
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}; |
Return to
CIM_Snapshot.mof
CVS log
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