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PreviousArticleThis article introduces the advanced copy feature of the storage system and briefly introduces several different methods of advanced copy. They are equivalent copy (EC), one point copy (OPC), snapopc +, and quickopc. This article will continue to explain one point copy (OPC) in depth ).
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One point copy (OPC), which differs from peer-to-peer copy in that it does not require mirroring and synchronization. You can send the OPC command to the storage system at any time. When you send the OPC command, the storage system will quickly copy the business data image generated when the command is sent. OPC will not affect the normal operation of business data, but you will find that the advanced copy operations in the storage system are completed without affecting normal business data services.
OPC is also a full copy of the next copy. It does not intelligently determine which data is updated or intelligently copy the changed data. If you only copy the changed data, you can consider another advanced copy method-quickopc.
It demonstrates the specific process of OPC, from left to right, in chronological order:
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