[ovirt-users] Update to 3.5.1 scrambled multipath.conf?

[Gianluca Cecchi]

On Mon, Jan 26, 2015 at 1:37 PM, Nir Soffer <nsoffer at redhat.com> wrote:

>
> > > Any suggestion appreciated.
> > >
> > > Current multipath.conf (where I also commented out the getuid_callout
> that
> > > is not used anymore):
> > >
> > > [root at tekkaman setup]# cat /etc/multipath.conf
> > > # RHEV REVISION 1.1
> > >
> > > blacklist {
> > >     devnode "^(sda|sdb)[0-9]*"
> > > }
>
>
> I think what happened is:
>
> 1. 3.5.1 had new multipath version
>

what do you mean with "new multipath version"?
I currently have device-mapper-multipath-0.4.9-56.fc20.x86_64
The system came from f18 to f19 and then to f20 via fedup in both cases
In my yum.log files I see this about January 2013 when I was in Fedora 18
Jan 07 00:11:44 Installed: device-mapper-multipath-0.4.9-36.fc18.x86_64

I then upgraded to f19 on 24th November 2013 and device-mapper-multipath
was the one pushed during the fedup update:
device-mapper-multipath-libs-0.4.9-51.fc19.x86_64

Then on 12th of November 2014 I passed form f19 to f20 and fedup pushed
device-mapper-multipath-0.4.9-56.fc20.x86_64
that is my current version
At that time I also passed from oVirt 3.4.4 to 3.5.0.
And I didn't register any problem with my internal disk

It was sufficient to keep inside
blacklist {
       devnode "sd[a-b]"
}

At the head of the file I only had:
# RHEV REVISION 1.0

No reference about
# RHEV PRIVATE

But right now that I'm writing I notice that my rule for blacklist after
migration to 3.5.1 was

devnode "^(sda|sdb)[0-9]*"

probably blacklists only partitions and not the full disks.... ;-)
So I'm going to check with the old blacklist option and/or the PRIVATE
label as suggested by Dan...

Probably passing from RHEV REVISION 1.0 to 1.1 the original blacklist part
was thrown away...

2. So vdsm upgraded the local file
> 3. blacklist above was removed
>    (it should exists in /etc/multipath.bak)
>
>
It seems it didn't generate any multipath.conf.bak ...
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