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Re: Wheezy FCP problem


On Tue, Mar 19, 2013 at 10:04:57AM +0000, PROT Pierre-François wrote:
> I have already made a port rescan, but the result is the same (no more <wwpn>
> subdirectory and nothing in the log).
> [  315.807811] qdio: 0.0.3400 ZFCP on SC 2 using AI:1 QEBSM:1 PCI:1 TDD:1 SIGA: W A

that looks correct. In the hope that there weren't more clarifying messages in
dmesg, I'd suggest that you send your question to LINUX-390@VM.MARIST.EDU. It
might be Debian-specific in the sense of the kernel version being special,
but it might be a general problem, too.

Sadly I currently lack time and a wheezy test environment, but that's what
I get on squeeze with a working zfcp:

[    3.106777] qdio: 0.0.2000 ZFCP on SC 0 using AI:1 QEBSM:1 PCI:1 TDD:1 SIGA: W AO 
[    3.177469] scsi 0:0:9:1: Direct-Access     IBM      2145             0000 PQ: 0 ANSI: 6

I.e. the next message is already the result of the probe. To automate the
startup one writes the LUN into a special file, there should be no need to
create manual udev rules:

/etc/sysconfig/hardware # cat config-ccw-0.0.2000 

(WWPN masked.)

This setup does not use NPIV, so I'm a bit at a loss. The WWPNs of the peers
should turn up in /sys/bus/ccw/drivers/zfcp/0.0.3400 in any case, if it's
properly configured. Maybe somebody on LINUX-390 knows more about it.

Kind regards
Philipp Kern

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