[mythtv-users] storage groups with a slave backend

Matt skd5aner at gmail.com
Sat Apr 21 16:52:37 UTC 2007


On 4/21/07, Matt <skd5aner at gmail.com> wrote:
> On 4/20/07, Bruce Markey <bjm at lvcm.com> wrote:
> > Matt wrote:
> > > - I have a master backend that has two local drives mounted, each
> > > drive is a storage group
> > > - I'm adding a slave backend/frontend that has a tuner, but I do not
> > > want to use any local diskspace.  I want it to use the same disks and
> > > storage groups on the master backend.
> > >
> > > 1) Do I need to do anything on the slave backend in order to configure
> > > it to point to these groups?
> >
> > If the dirs are NFS mounted on the same path for the slave
> > backend as the path on the master and NFS server then no.
> > If there are no per host paths for the Default SG on a slave,
> > it will assume that the paths are the same as the master.
> >
> > > Do I need to configure the storage groups in mythtv-setup on the slave?
> >
> > Not if the paths are the same. However, if the NFS mounted path
> > is different than the master then you need to add the local paths
> > for the Default group by running mythtv-setup on the slave.
> >
> >
> > mysql> select * from storagegroup;
> > +----+-----------+----------+-----------------+
> > | id | groupname | hostname | dirname         |
> > +----+-----------+----------+-----------------+
> > |  1 | Default   | mythmstr | /video1/mythtv/ |
> > +----+-----------+----------+-----------------+
> > |  2 | Default   | mythmstr | /video2/mythtv/ |
> > +----+-----------+----------+-----------------+
> >
> > If you NFS mount "/video1" on mythslv then it will find the
> > dir as "/video1/mythtv/". However if you mount it as
> > "/remote/video1" then you need to run mythtv-setup from
> > mythslv and add:
> >
> > +----+-----------+----------+------------------------+
> > | id | groupname | hostname | dirname                |
> > +----+-----------+----------+------------------------+
> > |  3 | Default   | mythslv  | /remote/video1/mythtv/ |
> > +----+-----------+----------+------------------------+
> > |  4 | Default   | mythslv  | /remote/video2/mythtv/ |
> > +----+-----------+----------+------------------------+
> >
> >
> > > Do I need to mount the drives via NFS?
> >
> > Yes. For the slave to record, it needs a pathname that it can
> > write to.
> >
> > >  Anything else?
> >
> > Not that I can think of.
> >
> > --  bjm
> > _______________________________________________
>
>
> Thanks again Bruce!  Storage Groups is my favorite new feature and
> haven't looked back since.  Just trying to extend it a littler more
> now :)
>
> Right now I need to go back in and delete the storage groups I created
> on the slave because they're identical (same mount point) as the
> master.  So, they're duplicated so to speak.
>
> Matt
>

Bruce (et al),

   I forgot to mention I found a bit of usability issues when trying
to do this the right way.  Currently, there is no way to delete a
storage group within the GUI.  I had to do it directly from the
database.  In addition, if I simply tried to erase the path of the
storage group, the group then became "/".  I would suggest some method
of deletion to remove storage groups (and categories) as needed.

I simply deleted them out of the storagegroup table, hopefully that's
the only place they're referenced.

Thanks!
Matt


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