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SUMMARY: FCAL Link Down

2007-12-25 1:15:00

Thanks to Douglas Palmer, Frank Fvrster, Louis C. Watta, Jon Hudson.

General consensus is that FC link errors are not usual.
I will check driver/fcode levels (and fcaw.conf), as I doubt it is
hardware-related
(cables are new, and we caught errors on several links, not on a particular
one).

---
Sebastien DAUBIGNE
sdaubigne at bordeaux-bersol.sema.slb.com
<mailto:sdaubigne at bordeaux-bersol.sema.slb.com> - (+33)5.57.26.56.36
SchlumbergerSema - SGS/DWH/Pessac

-----Message d'origine-----
De: DAUBIGNE Sebastien - BOR (
SDaubigne at bordeaux-bersol.sema.slb.com )
Date: lundi 5 mai 2003 14:06
@: 'veritas-vx at mailman.eng.auburn.edu';
'codeprof at codeprof.com'
Objet: FCAL Link Down

Our server (E6500) randomly (less than 1/month) catch link errors on
one of its FCAL link (JNI FC64-1063) to an IBM array (ESS 2105-800). The
link goes offline during one second, then it resets and goes up.
This does not produce any downtime as the link is multipathed with
Veritas DMP, so the errors are transparent.

But I'm just curious as if this type of error is usual for FCAL or
if it is a consequence of any bug/misconfiguration/malfunction ?

Here is the syslog trace, I will summarise.

May 1 03:56:58 iris unix: fcaw5: Watchdog: Hang Detected (OCQ).
Resetting...
May 1 03:56:58 iris unix: fcaw5: LINK DOWN
May 1 03:56:58 iris unix: fcaw5: Target 0: Port 0000ef
(5005076300c09a1e:5005076300c49a1e) offline.
May 1 03:56:58 iris unix: WARNING: /sbus at a,0/fcaw at 1,0/sd at 0,8
(sd1261):
May 1 03:56:58 iris unix: SCSI transport failed: reason
'tran_err': retrying command
May 1 03:56:58 iris unix: WARNING: /sbus at a,0/fcaw at 1,0/sd at 0,b
(sd1222):
May 1 03:56:58 iris unix: SCSI transport failed: reason
'tran_err': retrying command
May 1 03:56:58 iris unix: NOTICE: fcaw5 LOOP Initialization
Complete, AL_PA=01
May 1 03:56:58 iris unix: fcaw5: LINK UP (98000200)
May 1 03:56:58 iris unix: fcaw5: Host: Port 000001
(100000e06940747a:200000e0694074c9)
May 1 03:56:59 iris unix: fcaw5: Target 0: Port 0000ef
(5005076300c09a1e:5005076300c49a1e) online.

---
Sebastien DAUBIGNE
sdaubigne at bordeaux-bersol.sema.slb.com
<mailto:sdaubigne at bordeaux-bersol.sema.slb.com> - (+33)5.57.26.56.36
SchlumbergerSema - SGS/DWH/Pessac

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