Dual-controller active-active mode

Dual-controller active-active mode (also called as the active-active working mode): Both controllers are simultaneously active and concurrently process I/O requests initiated by application. If one controller fails or becomes offline, the other takes over services without affecting its own services. The active-active mode ensures robust system reliability using controller redundancy. In addition, this mode provides advantages, such as balancing service load, boosting system performance, and improving resource utilization.

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