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Most of the machines we use are HP Proliant models of one flavor or another. Peter B 6. Several virtual machines were running on the iSCSI storage and the results were monitored. Sign up using Facebook.
(iSCSI) Configuring Broadcom 10 Gb iSCSI offload
Post as a guest Name. Direct transfer of data by the RDMA network interface card RNICwith no need for host CPU involvement in the data transfer also known as kernel bypasssignificantly reduces CPU utilization of data communication and drastically reduces latencies for moving data from one machine to the other.
iSCSI Offload on RHEL6
It can be only used as software iSCSI initiator. You must be logged in to post a comment. Magnus Andersson 21 2.
Additionally SAN HQ that comes with Dell EqualLogic provides additional confirmation and insight at the storage system level in ofdload to changes in perfomance. The transceiver is fully compatible with the IEEE Anyone who has attempted to get iscsi offload working under RHEL5 can tell you… it can be a challenge.
In this case bnx2i module is used instead of tcp. Below is from the iSCSI config guide: When traffic is light, the adapter driver interrupts the host for each received packet, minimizing latency. Post as a guest Name. Jumbo frames up to 9 KB. I believe “cnic” stands for “converged nic”. Posted in Red Hat Linux.
When traffic is heavy, the adapter issues one host interrupt for multiple, back-to-back incoming packets, preserving host CPU cycles. The adapter driver intelligently adjusts host interrupt frequency based on traffic conditions to increase overall application throughput. Jumbo Frames do not work and are not supported on broadcom HW dependant initiators. This functionality provides the flexibility to add new features to netxreme card and adapts it to future network requirements through software downloads.
Therefore, the adapter’s iSCSI offload architecture is unique as evident by the split between hardware and host processing. The C-NIC offers acceleration for all popular protocols used iscsl the data center, such as:. So, an example iface name would be bnx2i. I hope this offlosd. In order to use this iface, we just apply the same IP address to the iface as is assigned to the physical interface.