[Ocfs-users] OCFS on Linux LVM?

[Wim Coekaerts]

> LVM is not cluster aware, No tests have been performed using LVM, It may 
> work, but it also may not.
> Corruptions are likely to happen since they are not cluster aware software.
> 
> ------------- end quote-------------
> 
> Seems a bit contradiction, and it also seems quite usual and normal for 
> large database to have logical volumes created from several harddisks. 
> Does it work ? If so, is it supported?

not sure what contradicts.

1- hardware raid/volume mgmt works, most folks use that, no problem
2- "lvm is not clusteraware" . if you want to use lvm, there is nothing
Today that works perfectly clean on linux, in a cluster, so, does it
work ? mostly. is it supported ? well, if you rvolume manager screws up
its not an ocfs problem. 

ocfs by itself does not need anything special, if you were to find a
volume manager that can be trusted  to behave correctly in a clutser, go
ahead, but if you resize a volume on one node, and the other nodes don't
know about this and overwrite stuff, well, you 're on your own.