Hello, everyone.
Today, we want to share with you the compacted data copy technology of HyperMetro.
In the initial synchronization of active-active mirrored data or incremental synchronization during data recovery, the differential data blocks generally contain a large number of zero data blocks that do not need to be copied one by one. For example, in a virtualization scenario, a large number of zero data blocks may be generated when you create a Virtual Machine (VM), and an operating system disk with scores of GB data may contain only 2 to 3 GB non-zero data blocks.
The technology is implemented as follows:
Zero data at the copy source end is detected using a chip. During data copying, zero data is marked so that only a smaller special page is transferred to the target end. In this way, full transfer of data is not performed.
This technology effectively reduces the amount of data to be synchronized, saves bandwidth, and shortens the synchronization duration.
