iSCSI Known Issues
A device cannot be uninstalled if it is configured as an iSCSI primary or secondary port.
Disabling the iSCSI primary port also disables the secondary port. To boot from the secondary port, change it
to be the primary port.
iSCSI Remote Boot: Connecting back-to-back to a target with a Broadcom LOM
Connecting an iSCSI boot host to a target through a Broadcom LOM may occasionally cause the connection
to fail. Use a switch between the host and target to avoid this.
iSCSI Remote Boot Firmware may show 0.0.0.0 in DHCP server IP address field
In a Linux base DHCP server, the iSCSI Remote Boot firmware shows 0.0.0.0 in the DHCP server IP
address field. The iSCSI Remote Boot firmware looks at the DHCP server IP address from the Next-Server
field in the DHCP response packet. However, the Linux base DHCP server may not set the field by default.
Add "Next-Server <IP Address>;" in dhcpd.conf to show the correct DHCP server IP address.
iSCSI traffic stops after disabling RSC
To prevent a lost connection, Receive Segment Coalescing (RSC) must be disabled prior to configuring a
VLAN bound to a port that will be used for connecting to an iSCSI target. Workaround this issue by disabling
Receive Segment Coalescing before setting up the VLAN. This will avoid this traffic stop.
Microsoft Windows iSCSI Boot Issues
During OS install, injecting drivers from a DUP can cause a blue screen
During installation of Microsoft Windows Server 2012 on an iSCSI LUN, if you inject drivers from a DUP
during the installation, you may experience a blue screen. Please install the hotfix described in kb2782676 to
resolve the issue.
Microsoft Initiator does not boot without link on boot port:
After setting up the system for Intel® Ethernet iSCSI Boot with two ports connected to a target and
successfully booting the system, if you later try to boot the system with only the secondary boot port
connected to the target, Microsoft Initiator will continuously reboot the system.
To work around this limitation follow these steps:
1. Using Registry Editor, expand the following registry key:
\System\CurrentControlSet\Services\Tcpip\Parameters
2. Create a DWORD value called DisableDHCPMediaSense and set the value to 0.
Support for Platforms Booted by UEFI iSCSI Native Initiator
Starting with version 2.2.0.0, the iSCSI crash dump driver gained the ability to support platforms booted using
the native UEFI iSCSI initiator over supported Intel Network Adapters. This support is available on Windows
Server or newer and only on x64 architecture. Any hotfixes listed above must also be applied.
Since network adapters on UEFI platforms may not provide legacy iSCSI option ROM, the boot options tab in
DMIX may not provide the setting to enable the iSCSI crash dump driver. If this is the case, the following
registry entry has to be created:
HKLM\SYSTEM\CurrentControlSet\Control\Class\{4D36E97B-E325-11CE-
BFC1-08002BE10318}\<InstanceID>\Parameters
DumpMiniport REG_SZ iscsdump.sys
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