Re: LVM snapshot and log record CRC mismatch

[Gionatan Danti <g.danti@xxxxxxxxxx>]

On 26/05/2016 12:23, Emmanuel Florac wrote:
> Le Wed, 25 May 2016 09:37:41 +0200
> Gionatan Danti <g.danti@xxxxxxxxxx> Ãcrivait:
>
> > The snapshot is accomplished using the following commands:
> >
> > lvcreate -s hypervisor/KVM_Storage --name Backup_SNAP
> > lvchange -ay -K hypervisor/Backup_SNAP
> > mount -o nouuid /dev/hypervisor/Backup_SNAP /mnt/lvm/
> 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?

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Danti Gionatan
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