LVM snapshot and log record CRC mismatch

Emmanuel Florac eflorac at intellique.com
Thu May 26 06:34:22 CDT 2016


Le Thu, 26 May 2016 13:17:04 +0200
Gionatan Danti <g.danti at assyoma.it> écrivait:

> >
> > You need to use xfs_freeze to make the filesystem coherent before
> > snapshot:
> >
> > xfs_freeze /dev/hypervisor/KVM_Storage
> > lvcreate -s hypervisor/KVM_Storage --name Backup_SNAP
> > xfs_freeze -u /dev/hypervisor/KVM_Storage
> > lvchange -ay -K hypervisor/Backup_SNAP
> >  
> 
> It was my understanding that filesystem freezing was automatically 
> managed by LVM, and integrated into VFS long ago.
> 
> I am missing something?

Yes, I thought that too, however it doesn't seem to be working in your
case, and freezing twice can't do any harm anyway :)

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