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To replicate, you must first match the data on both volumes. The To achieve this, the process of copying data in disk blocks from the source to the target in disk blocks of a certain size is called synchronization. Replication On the other hand, replication is an operation that reflects changes the change in real time to the target side when data on the source side changes, and is distinguished from a synchronization action.Synchronization and replication are separate operations, but can occur simultaneouslyis changed by write I/O. Synchronization works slowly in the background, but replication happens quickly and without any delays.
Although synchronization and replication operate separately, they can occur simultaneously at one point. In other words, since replication can be processed simultaneously during while synchronization is being performed (in if the case of actual operating nodesnode is synchronizing, it you should be considered that they think that these two operations are always processed almost simultaneously by write I/O during operation), it the processing bandwidth between them is reduced. It is important to properly control the bandwidth between themadjust within the range of maximum network processing bandwidth. For information on setting the sync band, see Adjust sync speed.
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