[Linux-cluster] rhcs doubts.

[SUVANKAR MOITRA]

dear all,

thanks for the document , its helps a lot.

regards

Suvankar

--- James Parsons <jparsons at redhat.com> wrote:

> Allyson - Listas wrote:
> 
> > Lon Hohberger wrote:
> >
> >> On Tue, 2006-03-14 at 15:27 -0300, Allyson -
> Listas wrote:
> >>  
> >>
> >>> Hi guys,
> >>>
> >>> I'm new at redhat cluster suite.  Could Anybody
> help me in some 
> >>> questions?
> >>>
> >>> 1st) I installed rhcs on 2 virtual machines and
> create a new 
> >>> cluster, setup a manual fence, a failvoer
> domain, create a IP 
> >>> resource and a service that uses just that IP
> for tests. Well, I'd 
> >>> like to know how can I force a failover of the
> service between 
> >>> nodes. This option is not available at
> system-config-cluster that 
> >>> allow just disable and enable the service.     
> >>
> >>
> >> Drag it to the other node in the gui.
> >>  
> >>
> >    -->  I couldn't find this option at gui, but i
> find how to do it at 
> > command line.. 
> 
> Just grab the service you want to move in the
> management view, and drag 
> it to the node you want it to run on in the upper
> half of the GUI. :-)
> 
> -j
> 
> >
> > [root at cs02 /]# clustat
> > Member Status: Quorate
> >
> >  Member Name                              Status
> >  ------ ----                              ------
> >  cs01.example.com                         Online,
> rgmanager
> >  cs02.example.com                         Online,
> Local, rgmanager
> >
> >  Service Name         Owner (Last)                
>   State
> >  ------- ----         ----- ------                
>   -----
> >  vip50                cs02.example.com            
>   started
> >  oracle-ha-fs         cs02.example.com            
>   started
> > [root at cs02 /]# clusvcadm -r oracle-ha-fs -m
> cs01.example.com
> > Trying to relocate oracle-ha-fs to
> cs01.example.com...success
> > [root at cs02 /]# clusvcadm -r vip50 -m
> cs01.example.com
> > Trying to relocate vip50 to
> cs01.example.com...success
> > [root at cs02 /]# clustat
> > Member Status: Quorate
> >
> >  Member Name                              Status
> >  ------ ----                              ------
> >  cs01.example.com                         Online,
> rgmanager
> >  cs02.example.com                         Online,
> Local, rgmanager
> >
> >  Service Name         Owner (Last)                
>   State
> >  ------- ----         ----- ------                
>   -----
> >  vip50                cs01.example.com            
>   started
> >  oracle-ha-fs         cs01.example.com            
>   started
> >
> >>
> >>  
> >>
> >>> I noticed that the ip service created is not a
> virtual interface 
> >>> like eth0:1, but it was working because I could
> ping it, Is it Normal?
> >>>   
> >>
> >>
> >> Yes, try "/sbin/ip addr list", which is noted in
> the documentation.
> >>
> >>
> >>  
> >>
> > tks
> >
> >>> 2nd) What is the real fuction of a fence device?
> >>>   
> >>
> >>
> >> Prevent data corruption in the event of a
> live-hang of a node with
> >> outstanding dirty buffers.
> >>
> >>
> >>  
> >>
> >>> 3rd) How can I setup a quorum device, and isn't
> necessary for a 
> >>> failover service?  I read that it was needed at
> rhel3 but at rhel4 
> >>> is not anymore, could you explain me that.
> >>>   
> >>
> >>
> >> What do you need to know?  It's not needed
> because of the way CMAN
> >> recovers - see
> >>
> >> http://people.redhat.com/teigland/sca.pdf
> >>
> >> -- Lon
> >>
> >> -- 
> >> Linux-cluster mailing list
> >> Linux-cluster at redhat.com
> >>
>
https://www.redhat.com/mailman/listinfo/linux-cluster
> >>
> >>  
> >>
> >
> >
> 
> 
> --
> Linux-cluster mailing list
> Linux-cluster at redhat.com
>
https://www.redhat.com/mailman/listinfo/linux-cluster
> 


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