can use the FRS GUI to restore the production volumes from the most recent data copy or another
Volume Shadow Copy Service (VSS)
Microsoft’s VSS manages creation and maintenance of shadow copies of production data for backup and recovery. This service works under the control of the FRS interface and the Windows OS file system services.
When requested by FRS, VSS coordinates with the writer and hardware providers to perform shadow copying of production data to the recovery volumes. The shadow copies contain static copies of all files, such as databases, transaction logs, and checkpoint files.
Copy terminology
Understanding how Microsoft VSS terminology corresponds to standard IT industry terms for data copying makes it easier to understand what VSS does. The following paragraphs explain the terminology.
Microsoft generally refers to a VSS copy as a “volume shadow copy.” When created using HP FRS and HWP, this type of copy is a static replica of an original volume’s contents. It is keyed with a GUID to allow identification of the parts of a shadow copy set that span multiple volumes. Microsoft also refers to a VSS copy as a “plex,” commonly known in the IT industry as a “split mirror.”
When you use an EVA array to make the shadow copy, the array makes what is known as a “snapclone.” An EVA Snapclone is a complete clone copy of a specified Virtual Disk (LUN). EVA snapclones are available almost immediately. This is accomplished by creating a
The shadow copies made on the EVA array using VSS, FRS, and HWP are always static,
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