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Which iSCSI host connectivity option is recommended in a CPU-intensive application environment?

Which iSCSI host connectivity option is recommended in a CPU-intensive application environment?

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A.
iSCSI HBA

B.
NIC with software-based iSCSI initiator

C.
TCP offload engine

D.
Converged Network Adapter

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5 Comments on “Which iSCSI host connectivity option is recommended in a CPU-intensive application environment?

  1. Satyaki Sarkar says:

    Correct Answer – A.
    http://www.dell.com/downloads/global/products/pwcnt/en/broadcom-iscsi-hba-faq.pdf

    Q: How does iSCSI HBA help reduce CPU utilization?
    A: Software iSCSI initiators consume considerable CPU cycles when handling I/O-intensive workloads, leaving
    little headroom for growing user application requirements. Broadcom’s iSCSI HBA architecture minimizes the
    CPU overhead so valuable CPU cycles are allocated to process user applications. Broadcom iSCSI HBA only uses
    1/3 of the CPU cycles required by the software initiator for a 4K I/O size read operation1.




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