All the NTFS file system structures are copied to the target disk and any that do not exist or have been modified on the target disk cause the data records for each NTFS file or object to be copied as well. The two file systems are first verified that they originated from the same format command and then the target NTFS file system structures are analyzed for differences.
The NTFS file system resident on the clone source is compared with file system on the target disk. The advantage of this is obvious, RDC offers similar a performance increase as an Incremental disk image offers over a Full image and enables regular clones to be a viable and fast DR solution. We wanted to build a clone solution that would effectively and rapidly copy only the differences between the source and target file systems.
As with Rapid Delta Restore (RDR) the concept of RDR has been something that has been thought about for quite some time here at Macrium Software.
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