FC initiator port offline due to faulty SFP
Applies to
- ONTAP 9
- Cisco MDS
- Tape drives
Issue
- FC initiator port connected to tape storage through a Cisco switch is offline as seen in
SYSCONFIG-AorFC-INIT-PORT-INFO.XML:
slot 0: FC Host Adapter 0c (QLogic 8324 rev. 2, N-port, <OFFLINE (hard)>)- Link break seen in EMS:
Tue Feb 13 22:55:20 +0100 [node1: isp2400_intrd: fci.link.break:error]: Link break detected on Fibre Channel adapter 0c.Tue Feb 13 22:55:50 +0100 [node1: isp2400_timeout_0: fci.link.error:error]: Could not recover link on Fibre Channel adapter 0c after 30 seconds. Taking the adapter offline.- Upon reseating or swapping the cable, the adapter comes online for a few seconds then goes offline again:
Mon Feb 19 09:09:39 +0100 [node1: isp2400_asyncd_0: fci.adapter.online:info]: Fibre Channel adapter 0c is now online.Mon Feb 19 09:11:46 +0100 [node1: isp2400_intrd: fci.link.break:error]: Link break detected on Fibre Channel adapter 0c.Mon Feb 19 09:12:17 +0100 [node1: isp2400_timeout_0: fci.link.error:error]: Could not recover link on Fibre Channel adapter 0c after 30 seconds. Taking the adapter offline.- Tape drives lost from the node:
Mon Feb 19 09:12:17 +0100 [node1: isp2400_asyncd_0: mlm.tapemc.lun.removed:notice]: The tape LUN 'XXXXXXXXXXX:XXXXXXXXX' (S/N: XXXXXXXXXX) is no longer visible to this node.
- Switch reports good TX power, but low RX power:
`show interface`[...]fc1/11 is down (Link failure or not-connected)[...]Temperature 32.90 C, Voltage 3.28 V, Current 7.10 mA, TxPower -0.27 dBm, RxPower -40.00 dBm --