how to tell a WWN of FC HBA under linux

how to tell a WWN of FC HBA under linux

[Ming Zhang]

Hi folks

I know it is possible that tell the WWN during post. But is it possible
to tell under linux after system boots?

Thanks!

Ming

Re: how to tell a WWN of FC HBA under linux

[David.Egolf]

Ming,

With earlier releases of Kernel 2.6 we had to rely on the board driver to 
put this information in the proc file system.  We were using Emulex boards 
whose drivers performed this service.

In later versions of 2.6, some entity has been placing this information in 
the sys directory.  We are using a Red Hat derivative, but we think that 
this is independent of the distribution.

David Egolf

linux-scsi-owner@vger.kernel.org wrote on 12/12/2005 11:50:31 AM:

> Hi folks
> 
> I know it is possible that tell the WWN during post. But is it possible
> to tell under linux after system boots?
> 
> Thanks!
> 
> Ming
> 
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: how to tell a WWN of FC HBA under linux

[Michael Reed]

Look in /sys/class/fc_host/hostX for
entries port_name and node_name.  Most
but not all fc drivers implement this.
Others may export data in /proc or provide
their own utility to get it.

Mike


Ming Zhang wrote:
> Hi folks
> 
> I know it is possible that tell the WWN during post. But is it possible
> to tell under linux after system boots?
> 
> Thanks!
> 
> Ming
> 
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> 

Re: how to tell a WWN of FC HBA under linux

[Ming Zhang]

Thanks a lot! I found it for qla2300.

Ming

On Mon, 2005-12-12 at 14:54 -0600, Michael Reed wrote:
> Look in /sys/class/fc_host/hostX for
> entries port_name and node_name.  Most
> but not all fc drivers implement this.
> Others may export data in /proc or provide
> their own utility to get it.
> 
> Mike
> 
> 
> Ming Zhang wrote:
> > Hi folks
> > 
> > I know it is possible that tell the WWN during post. But is it possible
> > to tell under linux after system boots?
> > 
> > Thanks!
> > 
> > Ming
> > 
> > 
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> > 
> >