[Linux-cluster] [clvm] Volume group for uuid not found

Christine Caulfield ccaulfie at redhat.com
Mon Feb 1 15:34:18 UTC 2010


On 01/02/10 14:52, AlannY wrote:
> Hi there. I'm trying to set up HA-Cluster on Fedora with Red Had Cluster Suite.
> I've already set up cman and it works.
>
> Now, I want to create shared strorage with clvm+gfs2. I've install lvm2-cluster. Made
> lvmconf --enable-cluster. And now:
>
> I have 2 nodes, clvmd started:
>
> on 1st node I've done:
>
>      %# pvcreate /dev/sdb1
>
> on 2nd node I've done:
>
>      %# pvcreate /dev/sdb1
>
> As you may see, there are /dev/sdb1 device, but it's not the same machine - it's 2 different devices.

Is it really two different devices ? If so then clvmd will not work. It 
needs the same view of storage on all systems. Not necessarily the same 
names, but definitely the same actual storage.

Chrissie

> on 1st node I've done:
>
>      %# vgcreate shared /dev/sdb1
>
> "shared" is a name for volume group.
>
> In current step, I'm now created volume group on 2nd node.
>
> on 1st node I've executed:
>
>      %# lvcreate -l 254 -n shared shared
>
> But, it failed with error:
>
>      Error locking on node<2nd node name>: Volume group for uuid not found: QgSZ5Y8KWOxxbxYdk4Y0eOoJh8GwP1hv9GTrlwNycTk7xWBejIp0suFANorVEuKS
>      Aborting. Failed to activate new LV to wipe the start of it.
>
> Then, I've created volume group "shared" on 2nd node:
>
>      %# vgcreate shared /dev/sdb1
>
> And then on 1st node, I've executed lvcreate once more, but have the same error.
>
> What am I doing wrong? I'm really newbie in clvm, but expierenced user of plain lvm, so, I have questions.
>
> My vgdisplay of 1st node:
>
>      %# vgdisplay
>      --- Volume group ---
>      VG Name               shared
>      System ID
>      Format                lvm2
>      Metadata Areas        1
>      Metadata Sequence No  27
>      VG Access             read/write
>      VG Status             resizable
>      Clustered             yes
>      Shared                no
>      MAX LV                0
>      Cur LV                0
>      Open LV               0
>      Max PV                0
>      Cur PV                1
>      Act PV                1
>      VG Size               1016.00 MB
>      PE Size               4.00 MB
>      Total PE              254
>      Alloc PE / Size       0 / 0
>      Free  PE / Size       254 / 1016.00 MB
>      VG UUID               QgSZ5Y-8KWO-xxbx-Ydk4-Y0eO-oJh8-GwP1hv
>
> On second node, there are either no volume groups or one named shared with just different VG UUID.
>




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