[linux-lvm] pvmove with a clustered VG
jerlyon at gmail.com
Thu Sep 25 17:19:29 UTC 2008
I wasn't sure which list to, so I chose both cluster and lvm.
My current configuration:
2 Node RHEL 5.2 cluster with multiple GFS on top of logical volumes in one
# rpm -q cman lvm2 lvm2-cluster kmod-gfs
I need to move a PV out of this volume group so I attempted to run pvmove
/dev/sdk1 but errors about locking on the other node. I assumed this was
because of the multiple GFS file systems being used on both nodes (services
were spread across the nodes). So I relocated all services to one node and
even stopped rgmanager, gfs, clvmd and cman on the idle node to make sure
that no locks would remain open.
I still had issues with running the pvmove. I saw these messages:
Sep 24 17:56:48 nodea kernel: device-mapper: mirror log: Module for logging
ype "clustered-core" not found.
Sep 24 17:56:48 nodea kernel: device-mapper: table: 253:31: mirror: Error
ating mirror dirty log
Sep 24 17:56:48 nodea kernel: device-mapper: ioctl: error adding target to
And after about 14% of the move was completed, there was another locking
message and many processes went into an uninteruptable sleep state. Load on
the server shot up to around 80.
I finally had to reboot the node and run pvmove --abort to get everything
back to working condition.
Is it not possible to run pvmove on a clustered VG? Any help would be
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