Thanks again. I think I have everything I need now. Ron Cronenwett On Thu, Jun 12, 2008 at 12:20 PM, Jonathan Brassow <jbrassow@xxxxxxxxxx> wrote: > Snapshot volumes are the only thing that would not work (because there is no > cluster-aware snapshot implementation yet). > > Other than that, all your volumes will convert just fine without having to > recreate, etc. > > Once you've got the cluster infrastructure setup, all you need to do is: > *> setup cluster infrastructure > *> install lvm2-cluster > 1> vgchange -an <volume group> # deactivate volumes > 2> vgchange -cy <volume group> # set cluster attribute > 3> vgchange -ay <volume group> # re-activate the volumes > > brassow > > On Jun 11, 2008, at 8:23 AM, Ron Cronenwett wrote: > >> Excellent, this answers most of what I was looking for. >> Just one question, if I were to install CLVM, can the existing volume >> group and logical volume be converted or would I need to recreate >> everything and restore the data from a back up copy? >> >> Thanks >> >> Ron Cronenwett >> >> >> On Wed, Jun 11, 2008 at 8:16 AM, Jonathan Brassow <jbrassow@xxxxxxxxxx> >> wrote: >>> >>> Here is a good source of information for those questions: >>> http://sources.redhat.com/cluster/wiki/LVMFailover >>> >>> brassow >>> >>> On Jun 10, 2008, at 7:12 PM, Ron Cronenwett wrote: >>> >>>> Hi all, >>>> >>>> I have been presented a pair of servers (RHEL 5.2) connected to a dual >>>> port scsi array. The storage has been configured as one large disk >>>> partitioned into /dev/sdb1 /dev/sdb2,and /dev/sdb3 with dev/sdb3 the >>>> sole device in a physical volume. Several logical volumes have been >>>> created on the physical volume. Currently the logical volumes are >>>> mounted on server A. Server B was added to the mix as a new server. >>>> Server B sees the external storage with fdisk -l and the volumes with >>>> pvdisplay. >>>> >>>> My questions are, can an existing logical volume be used as a cluster >>>> resource that is mounted on one node or the other (but not both)? >>>> Would this work with just the existing LVM or would CLVM be needed? If >>>> I need CLVM, can the existing logical volumes be used without >>>> destroying the existing data? In either case, would all the logical >>>> volumes need to be mounted on the same server or can just one logical >>>> volume be mounted on one server while the remaining logical volumes >>>> are mounted on the other? >>>> >>>> The idea is to create an active-passive HA cluster of an existing web >>>> server. >>>> >>>> Any thoughts, ideas, comments, questions would be appreciated. >>>> >>>> Thanks >>>> >>>> Ron Cronenwett >>>> >>>> -- >>>> Linux-cluster mailing list >>>> Linux-cluster@xxxxxxxxxx >>>> https://www.redhat.com/mailman/listinfo/linux-cluster >>> >>> -- >>> Linux-cluster mailing list >>> Linux-cluster@xxxxxxxxxx >>> https://www.redhat.com/mailman/listinfo/linux-cluster >>> >> >> -- >> Linux-cluster mailing list >> Linux-cluster@xxxxxxxxxx >> https://www.redhat.com/mailman/listinfo/linux-cluster > > -- > Linux-cluster mailing list > Linux-cluster@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/linux-cluster > -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
