Fibre Channel Driver received an interrupt indicating a Link Failure.

[Ryan Gu]

Hello everyone,

I have received the following message via the Openview:

Message Text : Jul 17 08:34:41 dwhouse vmunix: ALERT: fcT1 (0,86760426, 0/4/0/0) Fibre Channel Driver received an
interrupt indicating a Link Failure. The Frame Manager Status Register is 0x980010D0.

Does anyone know what this means? I think there could be a problem with a fibre cable. But I not sure yet.

And ioscan -kfnClan:
# ioscan -kfnClan
Class I H/W Path Driver S/W State H/W Type Description
========================================================================
lan 0 0/0/0/0 btlan3 CLAIMED INTERFACE PCI Ethernet (10110019)
/dev/ether0
lan 1 0/4/0/0.5 fcT1_cntl CLAIMED INTERFACE HP Fibre Channel Mass Storage Cntl
/dev/fcms1
lan 2 0/5/0/0 btlan5 CLAIMED INTERFACE PCI Ethernet (10110019)
lan 3 1/10/0/0.5 fcT1_cntl CLAIMED INTERFACE HP Fibre Channel Mass Storage Cntl
/dev/fcms3
lan 4 1/12/0/0 gelan CLAIMED INTERFACE HP A4926A PCI 1000Base-SX Adapter
/dev/gelan4

# fcmsutil /dev/fcms1

Local N_Port_ID is = 0x000001
N_Port Node World Wide Name = 0x1000001083B99600
N_Port Port World Wide Name = 0x1000001083B99600
Topology = IN_LOOP
Speed = 1062500000 (bps)
HPA of card = 0x89FFF000
EIM of card = 0xFFFFFFFF
Driver state = READY
Number of EDB's in use = 0
Number of OIB's in use = 0
Number of Active Outbound Exchanges = 1
Number of Active Login Sessions = 3

# fcmsutil /dev/fcms3

Local N_Port_ID is = 0x000002
N_Port Node World Wide Name = 0x1000001083B99609
N_Port Port World Wide Name = 0x1000001083B99609
Topology = IN_LOOP
Speed = 1062500000 (bps)
HPA of card = 0xD5FFF000
EIM of card = 0xFFFFFFFF
Driver state = READY
Number of EDB's in use = 0
Number of OIB's in use = 0
Number of Active Outbound Exchanges = 1
Number of Active Login Sessions = 3

[Tom Geudens · Accepted solution]

Hi Jason,
If this occurs very occasionally, don't start pulling fibres yet. Do you have PHSS_26798 installed ? If not, it's good pratice to install it, always keep up-to-date on the fibre and scsi patches.

If this message occurs frequently you've got to look for the troublemaker. However, I note that you've got an arbitrated loop, the problem might be elsewhere than in the fibre/fibrecard itself. Can you pull up data from your accesshubs / switches ? There might be a problem with one of the ports.

Troubleshooting an arbitrated loop is not easy ... I hope this gets you started.

Regards,
Tom Geudens

[Eugeny Brychkov]

I fully agree with Tom. The first yout action should be to check if server(s) run latest FC driver and has latest FC patches installed.
What's the FC cards?
BTW, event you saw is not for LAN class, it's for fcms class, which is at 0/4/0/0.8.
Are these cards in the same loop? Of course it's very simply to replace FC cable with good new one... but pleae follow Tom's advices
Eugeny

[Miguel Simon]

About the problem you describe...
1.- Check your patches and be sure to install de current FC card patches and dependencies
2.- Check the cable
3.- Check de GLM. If this GLM (link module inside the card) is before Septembre 2001, probably you must change with a more robust GLM inside a GLM kit upgrade. But for this, you must call HP.
Regards

[Serhiy Cherpatyuk]

Hello,

our customer has the same error. Could it be because of old firmware version (HP01)of the HDD (ST318304FC) of the storage FC10?

Site configuration (cluster):
Servers K370 with HP-UX10.20;
Storages: Model30, FC10
FC Hubs: FC-AL 10 Port Hub

Thank you.

[Mark Greene_1]

You can run the following to verify connectivity of your fibre cards:

fcmsutil /dev/fcm1 stat

and

fcmsutil /dev/fcm3 stat

mark