User guide

User Guide NetXtreme II
September 2013
Broadcom Corporation
Document INGSRVT78-CDUM100-R iSCSI Boot Page 97
Problem: In Windows Server 2012, toggling between iSCSI HBA offload mode and iSCSI software initiator boot can leave
the machine in a state where the HBA offload miniport bxois will not load.
Solution: Manually edit [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\bxois\StartOverride] from 3 to 0.
Modify the registry key before toggling back from NDIS to HBA path in CCM.
Problem: Installing Windows onto an iSCSI target via iSCSI boot fails when connecting to a 1 Gbps switch port.
Solution: This is a limitation relating to adapters that use SFP+ as the physical connection. SFP+ defaults to 10 Gbps
operation and does not support autonegotiation.
NOTE: Microsoft recommends against this method. Toggling the boot path from NDIS to HBA or vice versa
after installation is completed is not recommended.