So my question is, do I have an error somehwere, or is clvm really actually not able to function without all nodes being active and able to access storage?
Clvm need to be in a quorate cluster for work & if you use clvm in one node of the cluster i think the should has access to the storage your using the 3node to provide the quorum? esample: if one node of your two primary nodes goes down the it's still quorute, but if two node goes down and you are no using a quorum disk, you lose the quorum state I don't know why you use a node to privide the quorum, if you are use SAN why not use a lun for use as quorum disk All nodes in the cluster should has access to the storag 2012/7/2 urgrue <urg...@bulbous.org> > On 2/7/12 19:14, Digimer wrote: > >> On 07/02/2012 01:08 PM, urgrue wrote: >> >>> I'm trying to set up a 3-node cluster with clvm. Problem is, one node >>> can't access the storage, and I'm getting: >>> Error locking on node node3: Volume group for uuid not found: <snip> >>> whenever I try to activate the LVs on one of the working nodes. >>> >>> This can't be "by design", can it? >>> >> >> Does pvscan show the right device? Are all nodes in the cluster? What >> does 'cman_tool status' and 'dlm_tool ls' show? >> >> > Sorry, I realize now I was misleading, let me clarify: > The third node cannot access the storage, this is by design. I have three > datacenters but only two have access to the active storage. The third > datacenter only has an async copy, and will only activate (manually) in > case of a massive disaster (failure of both the other datacenters). > So I deliberately have a failover domain with only node1 and node2. > node3's function is to provide quorum, but also be able to be activated > (manually is fine) in case of a massive disaster. > In other words node3 is part of the cluster, but it can't see the storage > during normal operation. > Looking at it another way, it's kind of as if we had a 3-node cluster > where one node had an HBA failure but is otherwise working. Surely node1 > and node2 should be able to continue running the services? > So my question is, do I have an error somehwere, or is clvm really > actually not able to function without all nodes being active and able to > access storage? > > > > > -- > Linux-cluster mailing list > Linux-cluster@redhat.com > https://www.redhat.com/**mailman/listinfo/linux-cluster<https://www.redhat.com/mailman/listinfo/linux-cluster> > -- esta es mi vida e me la vivo hasta que dios quiera
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