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Re: [dm-devel] 2.6.2-udm2



On Wed, Feb 18, 2004 at 01:09:06PM +0000, Joe Thornber wrote:
> On Wed, Feb 18, 2004 at 01:01:29PM +0100, Heinz Mauelshagen wrote:
> > We can and will need to mlockall() the path test tool, which will make sure
> > that we can access all pages of the tool, shared library or mmap'ed file it
> > needs.
> 
> Yes, I think Christophe Varoqui who is writing the tools is aware of
> this.
> 
> > But if *all* paths of the multipath target to test are failed
> 
> Then we error the ios, we have no choice.  The userland tester should
> not wait until this situation before testing.

Right, but it won't have a chance to test early enough worst case.

Eg, all phyiscal paths fail because of a short power outage to multiple switches
in a fabric, which come back online shortly later when all paths have been
failed by the multipath target.

> 
> - Joe
> 
> --
> dm-devel mailing list
> dm-devel redhat com
> https://www.redhat.com/mailman/listinfo/dm-devel

-- 

Regards,
Heinz    -- The LVM Guy --

*** Software bugs are stupid.
    Nevertheless it needs not so stupid people to solve them ***

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Heinz Mauelshagen                                 Red Hat, Inc.
Consulting Development Engineer                   Am Sonnenhang 11
                                                  56242 Marienrachdorf
                                                  Germany
Mauelshagen RedHat com                            +49 2626 141200
                                                       FAX 924446
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