Dell Broadcom NetXtreme Family of Adapters Broadcom NetXtreme II Network Adapt - Page 42

Linux Driver Software: Broadcom NetXtreme II Network Adapter User Guide iface.transport_name = bnx2i Ensure that the iface.hwaddress is in lower case format. If you wish to switch back to use the software initiator, use the following: iscsiadm --mode node --targetname iqn.2004-06.com.broadcom:tg1 \ --portal 192.168.1.100 --op=update \ --name=iface_file_name where the iface file includes the following information: iface.net_ifacename = ethX iface.iscsi_ifacename = iface.transport_name = tcp Making Connections to iSCSI Targets Refer to open-iscsi documentation for a comprehensive list of iscsiadm commands. This is a sample list of commands to discovery targets and to create iscsi connections to a target. Add static entry iscsiadm -m node -p -T iqn.2007-05.com.broadcom:target1 -o new iSCSI target discovery using 'SendTargets' iscsiadm -m discovery --type sendtargets -p Bind iSCSI target to Broadcom NX2 transport (bnx2i) iscsiadm -m node -p -T --op=update --name=iface_file_name Login to target using 'iscsiadm' command iscsiadm --mode node --targetname --portal --login List all drives active in the system fdisk -l Maximize Offload iSCSI Connections With default driver parameters set, which includes 128 outstanding commands, bnx2i can offload the following number of connections: BCM5708: 28 BCM5709: 43 BCM5771x: 128 This is not a hard limit, but just a simple on-chip resource allocation math. bnx2i will be able to offload > 28 connections on 1G devices by reducing the shared queue size, which in turn limits the maximum outstanding tasks on a connection. See Setting Values for Optional Properties for information on sq_size and rq_size. The driver logs the following message to syslog when the maximum allowed connection offload limit is reached - "bnx2i: unable to allocate iSCSI context resources". Linux iSCSI Offload FAQ Not all Broadcom NetXtreme II adapters support iSCSI offload. The iSCSI session will not recover after a hot remove and hot plug. For MPIO to work properly, iSCSI nopout should be enabled on each iSCSI session. Refer to open-iscsi documentation for procedures on setting up noop_out_interval and noop_out_timeout values. In the scenario where multiple CNIC devices are in the system and the system is booted via Broadcom's iSCSI boot solution, ensure that the iscsi node under /etc/iscsi/nodes for the boot target is bound to the NIC that is used for booting. Please read all Restrictions and Disclaimers. file:///T|/htdocs/NETWORK/BroadCom/71921/NetXtremeII/en/linux.htm[9/26/2012 3:28:46 PM]