Created the usb drive.
Boot from usb;
on the first server it has completed the procedure;
on the second server the procedure freezes at 15% then I force a server turn off.
Restart from usb and now the update procedure get completed.
Very strange thing.
The problem is the Emulex bios.
I have two HBA installed in each server and now I see only one:
multipath -lll
size=120G features='1 queue_if_no_path' hwhandler='1 emc' wp=rw
|-+- policy='round-robin 0' prio=1 status=active
| `- 0:0:0:0 sda 8:0 active ready running
`-+- policy='round-robin 0' prio=0 status=enabled
`- 0:0:1:0 sde 8:64 active ready running
I want to say that before firmware upgrade I saw the two hba of each server.
Now I see only one hba of each server and it's a problem.