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Re: [Xen-users] Xen LVM2 snapshot backup



Denis J. Cirulis  wrote:
>                 Hi,
> 
> is there a way to speed up lvm performance while logical volume has one
> or more snapshots ?
> 
> I have several domUs on lvm volumes, I'm taking a snapshot of each
> volume, then with the help of dd taking backup of each volume.
> It seems to me that performance of snapshotted lv goes down, in my
> case from 600MB/s write to 78-80MB/s.
> Tried the solution with archive=0 in lvm.conf == no result.
> 
> Is there a way to speed it up or maybe there are more interesting live
> domU backup solutions out there ?
> 
Are you saying your performance drops by that much before you even start 
backing up?
Why not use ntfsclone/partclone as opposed to dd? That will certainly improve 
performance and reduce your exposure. 

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