Host Bus Adapter Pen & Paper talk

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Host Bus Adapter

A host bus adapter (HBA) is a circuit board and/or integrated circuit adapter that provides input/output (I/O) processing and physical connectivity between a server and a storage device. Because the HBA relieves the host microprocessor of both data storage and retrieval tasks, it can improve the server's performance time

Converged Network Adapter

A converged network adapter (CNA), also called a converged network interface controller (C-NIC), is a computer input/output device that combines the functionality of a host bus adapter (HBA) with a network interface controller (NIC). In other words it "converges" access to, respectively, a storage area network and a general-purpose computer network.
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Host Bus Adapters
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