You will only see it if the blade has been activated (powered on) and you will always get the WWN's on module 1 first.  We have the C7000 chassis and with the two SAN ports per module the chassis does a round robin balance between the modules.   There are two ways the WWN's are generated.  There is a check box to use HP generated WWN's out of a range they own or let the chassis use the default WWN on the blade itself.  We let the chassis generate the HP WWN's so they are always in the range I noted.  If the blade is configured and powered on you can check the switch port to see what WWN's are there.  You need to have NPIV support on (node port virtualization) so you can have multiple WWN's on the same san port.  Our SAN is brocade and NPIV is on by default on brocade.
Trying to launch an RHEL5 Blade server with four Emulex FC adapters in the server, connected to the Blade enclosure's 4GB VirtualConnect (VC) pass through.  The switch sees the VC with no problem, and I created a fabric and zoneset for the VC.  Now stuck on how to get the actual FCs in the Blade server to see the SAN.  FYI.. from one of the switches:  zone name CSF_BLADE_ENC2_2_DMX4 vsan 202   * fcid 0x4a0004 [pwwn 50:06:04:8a:d5:31:ee:27] [Symm5528_FA8c1]   * fcid 0x4a0014 [pwwn 20:00:f4:ce:46:ae:5a:b2]  <=== this is the VC on the Blade enclosure   Director Identification : FA-8C Director Port           : 1                              User-generated                      Logged On  Identifier       Type  Node Name        Port Name        FCID   In     Fabric ---------------- ----- --------------------------------- ------ ------ ------ 10000000c95ef8b9 Fibre buttercup        fcs1             4a0006 Yes    Yes 10000000c9961492 Fibre csf-tan          fcs1             4a0013 Yes    Yes 10000000c99ea53c Fibre sp-sql-prod      Slot2            4a0010 Yes    Yes 2000f4ce46ae5ab2 Fibre NULL             NULL             4a0014 No     Yes <===== and here it is (of course not logged in)  Not sure where to go from here.  Thanks.
Discover DMX4 from HP Blade Virtual Connect passthru