FC link not coming up on target ports
Applies to
- AFF/FAS Systems
- Brocade Switches
Issue
- FC link not coming up on target port.
- The
sysconfig -a
output shows as following (highlighted in yellow).
CLI command - system node run -node <node name> -command sysconfig -a
Example:
slot 5: Fibre Channel Target Host Adapter 5b
(Emulex LPe32000 (LPe32004) rev. 12, <LINK DISCONNECTED>)
Board Name: 111-03648
Serial Number: FP01142277
Firmware rev: 12.2.390.0
Host Port Addr: 000000
FC Nodename: 50:0a:09:80:80:23:6f:90 (500a098080236f90)
FC Portname: 50:0a:09:82:80:23:6f:90 (500a098280236f90)
Connection: No link
Switch Port: Unknown
SFP Vendor Name: AVAGO
SFP Vendor P/N: AFBR-57G5MZ-ELX
SFP Vendor Rev:
SFP Serial No.: AD2003G02U1
SFP Connector: LC
SFP Capabilities: 8, 16, 32 Gbit/Sec
- Ensure a supported SFP is used and same can be verified from NetApp Hardware Universe.
- In the EMS logs, following events are observed:
Thu Mar 04 16:41:01 +0000 [XXXXXXXX_01: fct_tpd_work_thread_0: scsitarget.slifct.linkBreak:error]: Link break detected on Fibre Channel target HBA 5b with event status 1 , topology type 1, status1 0x0, status2 0x0.
Thu Mar 04 16:41:01 +0000 [XXXXXXXX_01: nvmf_master_0: nvmf.spdk.err:debug]: fc_adm_api.c:2263 port link break: HW port 1 already offline. rc = 2
Thu Mar 04 16:41:22 +0000 [XXXXXXXX_01: fct_tpd_work_thread_0: scsitarget.hwpfct.linkUp:notice]: Link up on Fibre Channel target adapter 5b.
- Based on the planned cabling schematics, output of
portshow
indicates that the WWPN of device connected is different than the one which is listed in thesysconfig -a
output:
Example:
sysconfig -a output:
slot 5: Fibre Channel Target Host Adapter 5b
(Emulex LPe32000 (LPe32004) rev. 12, <LINK DISCONNECTED>)
Board Name: 111-03648
Serial Number: FP01142277
Firmware rev: 12.2.390.0
Host Port Addr: 000000
FC Nodename: 50:0a:09:80:80:23:6f:90 (500a098080236f90)
FC Portname: 50:0a:09:82:80:23:6f:90 (500a098280236f90)
Connection: No link
Switch Port: Unknown
SFP Vendor Name: AVAGO
SFP Vendor P/N: AFBR-57G5MZ-ELX
SFP Vendor Rev:
SFP Serial No.: AD2003G02U1
SFP Connector: LC
SFP Capabilities: 8, 16, 32 Gbit/Sec
portshow output:
switch:admin> portshow 19
portIndex: 19
portName: port19
portHealth: Fabric vision license not present. Please install the license and retry the operation.
Authentication: None
portDisableReason: None
portCFlags: 0x1
portFlags: 0x24b03 PRESENT ACTIVE F_PORT G_PORT U_PORT LOGICAL_ONLINE LOGIN NOELP LED ACCEPT FLOGI
LocalSwcFlags: 0x0
portType: 18.0
POD Port: Port is licensed
portState: 1 Online
Protocol: FC
portPhys: 6 In_Sync portScn: 32 F_Port
port generation number: 24
state transition count: 15
portId: 3e1300
portIfId: 43020001
portWwn: 20:13:00:05:33:6a:0b:b0
portWwn of device(s) connected:
10:00:00:10:9b:96:64:ab
Distance: normal
portSpeed: N8Gbps
- As you can see from the above example, the WWPN of the Target Port 5b and the WWPN of the device connected on Switch Port 19 are different, which indicates an incorrect device is plugged in to the switch.