On 26/08/15 02:46 PM, Streeter, Michelle N wrote: > I have a two node cluster. Both nodes are virtual and have five shared > drives attached via sas controller. For some reason, the cluster shows > both nodes have half the drives started on them. Not sure if this is > called split brain or not. It definitely looks load balancing. But I > did not set up load balancing. On my client, I only see the data for > the shares on the active cluster node. But they should all be on the > active cluster node. Any suggestions as to why this is happening? Is > there a setting so that everything works on only one node at a time?
Can you explain what you mean by "shared drives"? Are these iSCSI LUNs or direct connections to either port on SAS drives? A split-brain is when either node things the other is dead and is operating without coordinating with the peer. It is a disasterous situation with shared storage and it is what fencing (stonith) prevents, which you don't have configured. If you are using KVM, use fence_virsh or fence_virt. If you're using vmware, use fence_vmware. Please make this a priority before solving your storage issue. > pcs cluster status: > > Cluster name: CNAS > > Last updated: Wed Aug 26 13:35:47 2015 > > Last change: Wed Aug 26 13:28:55 2015 > > Stack: classic openais (with plugin) > > Current DC: nas02 - partition with quorum > > Version: 1.1.11-97629de > > 2 Nodes configured, 2 expected votes > > 11 Resources configured > > > > > > Online: [ nas01 nas02 ] > > > > Full list of resources: > > > > NAS (ocf::heartbeat:IPaddr2): Started nas01 > > Resource Group: datag > > datashare (ocf::heartbeat:Filesystem): Started nas02 > > dataserver (ocf::heartbeat:nfsserver): Started nas02 > > Resource Group: oomtlg > > oomtlshare (ocf::heartbeat:Filesystem): Started nas01 > > oomtlserver (ocf::heartbeat:nfsserver): Started nas01 > > Resource Group: oomtrg > > oomtrshare (ocf::heartbeat:Filesystem): Started nas02 > > oomtrserver (ocf::heartbeat:nfsserver): Started as02 > > Resource Group: oomblg > > oomblshare (ocf::heartbeat:Filesystem): Started nas01 > > oomblserver (ocf::heartbeat:nfsserver): Started nas01 > > Resource Group: oombrg > > oombrshare (ocf::heartbeat:Filesystem): Started nas02 > > oombrserver (ocf::heartbeat:nfsserver): Started nas02 > > > > pcs config show: > > Cluster Name: CNAS > > Corosync Nodes: > > nas01 nas02 > > Pacemaker Nodes: > > nas01 nas02 > > > > Resources: > > Resource: NAS (class=ocf provider=heartbeat type=IPaddr2) > > Attributes: ip=192.168.56.110 cidr_netmask=24 > > Operations: start interval=0s timeout=20s (NAS-start-timeout-20s) > > stop interval=0s timeout=20s (NAS-stop-timeout-20s) > > monitor interval=10s timeout=20s (NAS-monitor-interval-10s) > > Group: datag > > Resource: datashare (class=ocf provider=heartbeat type=Filesystem) > > Attributes: device=/dev/sdb1 directory=/data fstype=ext4 > > Operations: start interval=0s timeout=60 (datashare-start-timeout-60) > > stop interval=0s timeout=60 (datashare-stop-timeout-60) > > monitor interval=20 timeout=40 > (datashare-monitor-interval-20) > > Resource: dataserver (class=ocf provider=heartbeat type=nfsserver) > > Attributes: nfs_shared_infodir=/data/nfsinfo nfs_no_notify=true > > Operations: start interval=0s timeout=40 (dataserver-start-timeout-40) > > stop interval=0s timeout=20s (dataserver-stop-timeout-20s) > > monitor interval=10 timeout=20s > (dataserver-monitor-interval-10) > > Group: oomtlg > > Resource: oomtlshare (class=ocf provider=heartbeat type=Filesystem) > > Attributes: device=/dev/sdc1 directory=/oomtl fstype=ext4 > > Operations: start interval=0s timeout=60 (oomtlshare-start-timeout-60) > > stop interval=0s timeout=60 (oomtlshare-stop-timeout-60) > > monitor interval=20 timeout=40 > (oomtlshare-monitor-interval-20) > > Resource: oomtlserver (class=ocf provider=heartbeat type=nfsserver) > > Attributes: nfs_shared_infodir=/oomtl/nfsinfo nfs_no_notify=true > > Operations: start interval=0s timeout=40 (oomtlserver-start-timeout-40) > > stop interval=0s timeout=20s (oomtlserver-stop-timeout-20s) > > monitor interval=10 timeout=20s > (oomtlserver-monitor-interval-10) > > Group: oomtrg > > Resource: oomtrshare (class=ocf provider=heartbeat type=Filesystem) > > Attributes: device=/dev/sdd1 directory=/oomtr fstype=ext4 > > Operations: start interval=0s timeout=60 (oomtrshare-start-timeout-60) > > stop interval=0s timeout=60 (oomtrshare-stop-timeout-60) > > monitor interval=20 timeout=40 > (oomtrshare-monitor-interval-20) > > Resource: oomtrserver (class=ocf provider=heartbeat type=nfsserver) > > Attributes: nfs_shared_infodir=/oomtr/nfsinfo nfs_no_notify=true > > Operations: start interval=0s timeout=40 (oomtrserver-start-timeout-40) > > stop interval=0s timeout=20s (oomtrserver-stop-timeout-20s) > > monitor interval=10 timeout=20s > (oomtrserver-monitor-interval-10) > > Group: oomblg > > Resource: oomblshare (class=ocf provider=heartbeat type=Filesystem) > > Attributes: device=/dev/sde1 directory=/oombl fstype=ext4 > > Operations: start interval=0s timeout=60 (oomblshare-start-timeout-60) > > stop interval=0s timeout=60 (oomblshare-stop-timeout-60) > > monitor interval=20 timeout=40 > (oomblshare-monitor-interval-20) > > Resource: oomblserver (class=ocf provider=heartbeat type=nfsserver) > > Attributes: nfs_shared_infodir=/oombl/nfsinfo nfs_no_notify=true > > Operations: start interval=0s timeout=40 (oomblserver-start-timeout-40) > > stop interval=0s timeout=20s (oomblserver-stop-timeout-20s) > > monitor interval=10 timeout=20s > (oomblserver-monitor-interval-10) > > Group: oombrg > > Resource: oombrshare (class=ocf provider=heartbeat type=Filesystem) > > Attributes: device=/dev/sdf1 directory=/oombr fstype=ext4 > > Operations: start interval=0s timeout=60 (oombrshare-start-timeout-60) > > stop interval=0s timeout=60 (oombrshare-stop-timeout-60) > > monitor interval=20 timeout=40 > (oombrshare-monitor-interval-20) > > Resource: oombrserver (class=ocf provider=heartbeat type=nfsserver) > > Attributes: nfs_shared_infodir=/oombr/nfsinfo nfs_no_notify=true > > Operations: start interval=0s timeout=40 (oombrserver-start-timeout-40) > > stop interval=0s timeout=20s (oombrserver-stop-timeout-20s) > > monitor interval=10 timeout=20s > (oombrserver-monitor-interval-10) > > > > Stonith Devices: > > Fencing Levels: > > > > Location Constraints: > > Ordering Constraints: > > Colocation Constraints: > > > > Cluster Properties: > > cluster-infrastructure: classic openais (with plugin) > > dc-version: 1.1.11-97629de > > expected-quorum-votes: 2 > > no-quorum-policy: ignore > > stonith-enabled: false > > > > Michelle Streeter > > ASC2 MCS – SDE/ACL/SDL/EDL OKC Software Engineer > The Boeing Company > > > > > > _______________________________________________ > Users mailing list: [email protected] > http://clusterlabs.org/mailman/listinfo/users > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org > -- Digimer Papers and Projects: https://alteeve.ca/w/ What if the cure for cancer is trapped in the mind of a person without access to education? _______________________________________________ Users mailing list: [email protected] http://clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
