Re: [Xen-users] Re: Mounting domU filesystem on Dom0. (xm mount)

[Siim Vahtre <siim_@xxxxxxxx>]

> LVMs are not the solution. You need the domU kernel's help to do 
> anything without completely ruining the filesystem. Currently, I think 
> the best way would be customize a simple nfsd for this purpose.
Remember that if you backup directly from filesystem (or from NFS export 
or whatever), the filesystem contents can change even while you're backing 
up! That doesn't happen with LVM.
To get "really" consistent backup, the backup software must cooperate with 
the application, which can be quite complicated. But if the application is 
written well, it should be able to handle poweroffs, at least as far as 
not completely destroying your data.
LVM is far from perfect, but I wouldn't say it is "terrible terrible" for 
your task.
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