To increase the throughput of an iSCSI host port on a NetApp E-Series system, you should change themaximum transmission unit (MTU)setting from its default value.
Maximum Transmission Unit (MTU):The MTU size determines the largest packet that can be sent over the network without needing to be fragmented. By increasing the MTU size, you can reduce the overhead associated with packet processing and improve throughput. For example, setting the MTU to 9000 bytes (Jumbo Frames) can enhance performance for iSCSI traffic.
References:
NetApp E-Series SANtricity Storage Manager User Guide
NetApp Best Practices for Configuring iSCSI with E-Series
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