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Re: [Linux-cluster] CCS to add VM to RHCS?



Robert,

Unfortunately the 6.1 version of ccs didn't include the '--addvm' & '--rmvm' command to add vm's directly under the <rm> level in the cluster.conf file.  However, starting with 6.2 this will be added.  If you'd like to test out a beta version of the ccs command I can provide you the latest version.

Thanks!
Chris

----- Original Message -----
> From: "Robert Hayden" <rhayden public gmail com>
> To: "linux clustering" <linux-cluster redhat com>
> Sent: Thursday, August 4, 2011 8:48:23 AM
> Subject: [Linux-cluster] CCS to add VM to RHCS?
> I was attempting to add VM resources to a two node cluster with the
> ccs tool (RHEL 6.1). I believe that it I am either not using the
> proper ccs command or there is a bug in the ccs tool for VMs. Wanted
> to see if anyone has attempted this before I go to bugzilla.
> 
> Command:
> ccs -f cluster.build --addresource vm name=vm_b migrate=live
> domain=kvm_node2_fo_domain autostart=1 recovery=restart use_virsh=1
> ccs -f cluster.build --addresource vm name=vm_a migrate=live
> domain=kvm_node1_fo_domain autostart=1 recovery=restart use_virsh=1
> 
> These modify the cluster.build file as follows. Notice that the <vm>
> stanzas are located within the <resource>. From what I have been able
> to determine, the <vm> stanzas need to be in the <rm>, but not as a
> "resource". Otherwise rgmanager does not pick the VMs up.
> 
> <rm>
> <failoverdomains>
> <failoverdomain name="kvm_node1_fo_domain" nofailback="1"
> ordered="1" restricted="1">
> <failoverdomainnode name="node1" priority="1"/>
> <failoverdomainnode name="node2" priority="2"/>
> </failoverdomain>
> <failoverdomain name="kvm_node2_fo_domain" nofailback="1"
> ordered="1" restricted="1">
> <failoverdomainnode name="node1" priority="2"/>
> <failoverdomainnode name="node2" priority="1"/>
> </failoverdomain>
> </failoverdomains>
> <resources>
> <vm autostart="1" domain="kvm_node1_fo_domain" migrate="live"
> name="vm_a" recovery="restart" use_virsh="1"/>
> <vm autostart="1" domain="kvm_node2_fo_domain" migrate="live"
> name="vm_b" recovery="restart" use_virsh="1"/>
> </resources>
> </rm>
> 
> 
> Correct <rm> stanza as far as I know, at least this allows for the VMs
> to be seen with clustat and for them to be managed.
> 
> <rm>
> <failoverdomains>
> <failoverdomain name="kvm_node1_fo_domain" nofailback="1"
> ordered="1" restricted="1">
> <failoverdomainnode name="node1" priority="1"/>
> <failoverdomainnode name="node2" priority="2"/>
> </failoverdomain>
> <failoverdomain name="kvm_node2_fo_domain" nofailback="1"
> ordered="1" restricted="1">
> <failoverdomainnode name="node1" priority="2"/>
> <failoverdomainnode name="node2" priority="1"/>
> </failoverdomain>
> </failoverdomains>
> <resource/>
> <vm autostart="1" domain="kvm_node1_fo_domain" migrate="live"
> name="vm_a" recovery="restart" use_virsh="1"/>
> <vm autostart="1" domain="kvm_node2_fo_domain" migrate="live"
> name="vm_b" recovery="restart" use_virsh="1"/>
> </rm>
> 
> 
> Thanks
> Robert
> 
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