Well I am using iSCSI for storage and quorum... First I tried with 3 nodes plus storage... I shutdown the node1 where VM was running and the VM restart on node2...
2014-07-07 7:20 GMT-03:00 admin-at-extremeshok-dot-com < [email protected]>: > Assuming he is using shared storage (NAS)... > > The nas operates as a 3rd node, and the systems are fenced via the NAS. > > As long as 1 node can communicate with the NAS, it will have a higher > quorum, than the node that cant connect to the NAS. > > Single point of failure is NAS, so its not HA. > > > On 7/7/2014 11:50 AM, Yannis Milios wrote: > > I tried the same config on a lab but does not work. > I think its not possible to have HA without proper fencing. > Im > On Jul 7, 2014 12:40 PM, "Angel Docampo" <[email protected]> wrote: > >> What do you mean by "it works"? >> Without fence mechanism, the cluster won't be aware there a node down, >> and then you can continue writing modifications in both sides and finish >> with a split brain. >> >> >> >> El 05/07/14 21:49, Gilberto Nunes escribió: >> >> WOW >> >> Even with just 2 nodes HA works fine!!!! >> >> I have tested some minutes ago... >> >> Is there something improvement on HA Code?? >> >> I would like to know... >> >> Thanks >> >> >> 2014-07-05 16:37 GMT-03:00 Gilberto Nunes <[email protected]>: >> >>> Hi >>> >>> Today I have deploy a tree node plus storage scenario in a lab. >>> First at all, I image that I need configure fence device, as docs >>> demand... >>> So, I decide to use a MAnaged Switch (DLikn DES-3028). >>> But, I realize that even without fence configuratio HA works properly >>> and NICE, I might add.. >>> >>> Here's the configuration: >>> >>> <?xml version="1.0"?> >>> <cluster config_version="18" name="CLUSTER"> >>> <cman expected_votes="3" >>> keyfile="/var/lib/pve-cluster/corosync.authkey"/> >>> <quorumd allow_kill="0" interval="3" label="quorum" tko="10" >>> votes="1"> >>> <heuristic interval="3" program="ping 10.90.90.100 -c1 -w1" score="1" >>> tko="4"/> >>> <heuristic interval="3" program="ip addr | grep eth0 | grep -q UP" >>> score="2" tko="3"/> >>> </quorumd> >>> <totem token="54000"/> >>> <clusternodes> >>> <clusternode name="pve01" nodeid="1" votes="1"> >>> </clusternode> >>> <clusternode name="pve02" nodeid="2" votes="1"> >>> </clusternode> >>> <clusternode name="pve03" nodeid="3" votes="1"> >>> </clusternode> >>> </clusternodes> >>> <rm> >>> <failoverdomains> >>> <failoverdomain name="serverfailover" ordered="1" restricted="0"> >>> <failoverdomainnode name="pve1" priority="1"/> >>> <failoverdomainnode name="pve2" priority="2"/> >>> <failoverdomainnode name="pve3" priority="3"/> >>> </failoverdomain> >>> </failoverdomains> >>> <pvevm autostart="1" vmid="100"/> >>> </rm> >>> </cluster> >>> >>> >>> I always though that I need fence device in order to make HA work... >>> >>> Thanks >>> >>> -- >>> Gilberto Ferreira >>> >> >> >> >> -- >> Gilberto Ferreira >> >> >> _______________________________________________ >> pve-user mailing >> [email protected]http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user >> >> >> -- >> >> >> >> *Angel Docampo * >> *Datalab Tecnologia, s.a.* >> Castillejos, 352 - 08025 Barcelona >> Tel. 93 476 69 14 - Ext: 706 >> Mob. 670.299.381 >> >> _______________________________________________ >> pve-user mailing list >> [email protected] >> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user >> >> > > _______________________________________________ > pve-user mailing > [email protected]http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user > > > > _______________________________________________ > pve-user mailing list > [email protected] > http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user > > -- Gilberto Ferreira
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