iSCSI boot trouble

Hello everyone,

I'm trying to build boot from iSCSI with a CX4-120 from a Dell Poweredge R710 server using integrated Broadcom NetXtreme II 5709 iSCSI Offload. I'm reading "http://supportapj.dell.com/support/edocs/network/BroadCom/R125875/CS/iscsi.htm#wp392527" for doing it.

1. Dell R710 configured two iSCSI targets:

(1)

IP:172.16.16.102

Port:3260

lun:2

iscsi name:iqn.1992-04.com.emc:cx.fcn****.a2

(2)

IP:172.16.16.103

Port:3260

lun:2

iscsi name:iqn.1992-04.com.emc:cx.fcn****.b2

And,I setup CentOS 6.0 with ISCSI Target 172.16.16.103.

2. CX4-120

LUN 2  bind Dell R710 host,

the default ower and current ower of LUN 2 is SPB

3. I configured everything but when server tries to boot from CX4 after logging in the selected target, I get this message:

Logging in the 1st iSCSI target ...Failed(Target has insufficient session)

Logging in the 2nd iSCSI target...Succeeded

Target Drive:DGC  (Rev:0429)

[iBoot-01]: Target is not ready.

I am not able to understand this error and find a solution for it. Anyone knows about it? I'm sure it must have an easy solution.

Thank you very much for your help.