How to Diagnose the link failure on brocade san switch?

[louisji2008]

Dear bro,

I  have a XP24000 and a rx8640,

After mapping LDEVs to rx8640, the OS (11.31) cannot discover the LUNs with ioscan -fn command, even after I reboot the server.

I think there is no problem in the server side and also the array side. So  the only reason could be the link problem of the SAN.

I need your help check the two SAN switches' status. I will post the supportshow output tommorrow, is it enough?

Below is the fcmsutil command output after zoning:

# ioscan -funCfc
Class     I  H/W Path        Driver S/W State   H/W Type     Description
=======================================================================
fc        2  0/0/12/0/0/0/0  fclp   CLAIMED     INTERFACE    HP AD299-60001 4Gb PCIe 1-port Fibre Channel Adapter
                            /dev/fclp2
fc        3  0/0/14/0/0/0/0  fclp   CLAIMED     INTERFACE    HP AD299-60001 4Gb PCIe 1-port Fibre Channel Adapter
                            /dev/fclp3
#
# fcmsutil /dev/fclp2

                            Vendor ID is = 0x10df
                            Device ID is = 0xfe00
             PCI Sub-system Vendor ID is = 0x103c
                    PCI Sub-system ID is = 0x7046
                            Chip version = 2
                        Firmware Version = 2.70X5 SLI-3 (Z3D2.70X5)
                             EFI Version = ZE3.21A3
                                EFI Boot = ENABLED
          Driver-Firmware Dump Available = NO
          Driver-Firmware Dump Timestamp = N/A
                                Topology = PTTOPT_FABRIC
                              Link Speed = 4Gb
                      Local N_Port_id is = 0x010800
                   Previous N_Port_id is = None
             N_Port Node World Wide Name = 0x500143800957ad37
             N_Port Port World Wide Name = 0x500143800957ad36
             Switch Port World Wide Name = 0x200800051ef50182
             Switch Node World Wide Name = 0x100000051ef50182
                            Driver state = ONLINE
                        Hardware Path is = 0/0/12/0/0/0/0
                      Maximum Frame Size = 2048
                                    TYPE = PFC
                          NPIV Supported = NO
                          Driver Version = @(#) FCLP: PCIe Fibre Channel driver (FibrChanl-02), B.11.31.1103, Dec  4 2010, FCLP_IFC (3,2)


# fcmsutil /dev/fclp3

                            Vendor ID is = 0x10df
                            Device ID is = 0xfe00
             PCI Sub-system Vendor ID is = 0x103c
                    PCI Sub-system ID is = 0x7046
                            Chip version = 2
                        Firmware Version = 2.70X5 SLI-3 (Z3D2.70X5)
                             EFI Version = ZE3.21A3
                                EFI Boot = ENABLED
          Driver-Firmware Dump Available = NO
          Driver-Firmware Dump Timestamp = N/A
                                Topology = PTTOPT_FABRIC
                              Link Speed = 4Gb
                      Local N_Port_id is = 0x010c00
                   Previous N_Port_id is = None
             N_Port Node World Wide Name = 0x500143800957acbf
             N_Port Port World Wide Name = 0x500143800957acbe
             Switch Port World Wide Name = 0x200c00051ef50182
             Switch Node World Wide Name = 0x100000051ef50182
                            Driver state = ONLINE
                        Hardware Path is = 0/0/14/0/0/0/0
                      Maximum Frame Size = 2048
                                    TYPE = PFC
                          NPIV Supported = NO
                          Driver Version = @(#) FCLP: PCIe Fibre Channel driver (FibrChanl-02), B.11.31.1103, Dec  4 2010, FCLP_IFC (3,2)

# fcmsutil /dev/fclp2 get remote all

There are no node ports present.

 # fcmsutil /dev/fclp3 get remote all

There are no node ports present.