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[linux-lvm] CLVM does every node needs access to the shared storage?



Hello everybody,

I'm building a GFS cluster but to get that done, first I need the premilinary Cluster Suite setup and the the CLVM setup.
The cluster is composed of 6 machines, 3 lock servers using GULM and 3 client nodes.
Using RHEL4.3 GFS 6.1 U3 and RHCS (cluster Suite) Update 4
Only the client nodes have access to the shared storage, the lock servers does not have access to the shared storage.
Everything was setup accordinly but after I installed the CLVM on all nodes I keep receiving error messages when I try to create any Logical Volume over the Volume Group.

Here are the message I receive when I try to create the LV:

[root rac-node1 ~]# lvcreate -L4G -n lv01 vg01

  Found duplicate PV o2Xf8uUmskTL5fiVQAgY0nJ1ZJSMA9U3: using /dev/sds1 not /dev/emcpowerb1

  Found duplicate PV 3yduFLdX3FWPWWMb9lIbtBf3JIPjYnHF: using /dev/emcpowerc1 not /dev/sdr1

  Found duplicate PV Kyha3qI6nVE4odg77UXf7igS3FenGJNn: using /dev/sdd1 not /dev/emcpowerq1

  Found duplicate PV WS1LyhqQ8HaE2fIuSnXNd5sgTRtNzNAJ: using /dev/sdt1 not /dev/emcpowera1

  Found duplicate PV DuBJ7dZsS3PIO7n5U6hINxPkWorZDzvx: using /dev/emcpowerd1 not /dev/sdq1

  Found duplicate PV ZECZzAtbA0e9pFbl9oL0lZg4q7fkS5x4: using /dev/sdk1 not /dev/emcpowerj1

  Found duplicate PV bnVVmL6WhS2mesnOFUkT4fEfR0cFhybD: using /dev/emcpowerk1 not /dev/sdj1

  Found duplicate PV XyXrg2zdxxMS5jo03f9I4QYtGM3ILLGV: using /dev/sdl1 not /dev/emcpoweri1

  Found duplicate PV SLE5v2eTD7cJlpRUDGG35xfXkRbW86i1: using /dev/emcpowerl1 not /dev/sdi1

  Found duplicate PV acGyUd2wX7FnOF94Cbt0ombp10iUWMSf: using /dev/sdm1 not /dev/emcpowerh1

  Found duplicate PV ll8eNZ0JRh9katV0eui4BcxSc6HBggSI: using /dev/emcpowerm1 not /dev/sdh1

  Found duplicate PV ptGubq8R16LxywZ458P7ebmdG3Fq2aJo: using /dev/sdn1 not /dev/emcpowerg1

  Found duplicate PV PLQ3uON7pYe7nY16gRmAP94WBaEydRwf: using /dev/emcpowern1 not /dev/sdg1

  Found duplicate PV PsVYTeKNy6EcqWYbJwQ4KEbPp2Q8HjWv: using /dev/sdo1 not /dev/emcpowerf1

  Found duplicate PV hvekbzDAltJ3t23QveOMz1axfhj9Mp2j: using /dev/emcpowero1 not /dev/sdf1

  Found duplicate PV 5OhUbKbZLW5bTc3tpJeU4YlH0dTttJHF: using /dev/sdp1 not /dev/emcpowere1

  Found duplicate PV dFtPhq6pkwFdl41NTrAguAEFB3601CTb: using /dev/emcpowerp1 not /dev/sde1

  Error locking on node lock-node1: Internal lvm error, check syslog

  Error locking on node lock-node2: Internal lvm error, check syslog

  Error locking on node lock-node3: Internal lvm error, check syslog

  Failed to activate new LV.

Here is what I get from the /var/log/messages:

Oct 13 21:20:46 lock-node1 lvm[5478]: Volume group for uuid not found: UzvBBmBj7m53APMbye1XXztWjdIavfgX8L5rGTOB3i3KGYPazw1AVaGCmWsXZpqR

It seems that the CLVM complains about the lock servers not being able to access the shared storage.
Is there a special configuration to make this setup possible?


The /etc/lvm/lvm.conf I used the following filter, (because the internal discs are also using LVM)
    filter = [ "r|/dev/sda|", "a/.*/"


Should I add to this filter the volumes from the shared storage too?
Would that have any impact on the GFS setup?

Thank you,
Regards,


--
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Filipe T Miranda


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