Hi, ----- "Kameleon" <kameleo...@gmail.com> wrote: > I have been using backuppc for quite some time now. I use it at home in a xen > domu to back up all my servers/machines at home and here at work I use it on > a physical host to backup all of our servers. I use rsync method of backing > up where applicable and rsyncd on the windows machines. > > One thing I have noticed lately here at work is the server being backed up > has its load go sky high when a backup is running. I have thought about ways > to avoid this if possible. I remember reading, somewhere I cannot find again, > that someone did a similar method to what I am thinking may help. Most of our > servers will be Xen domu's running in logical volumes located on the dom0 > hypervisor. What I was thining may be possible is running an lvm snapshot of > the virtual machines lvm partition, mount the snapshot, and run backuppc > against that snapshot for that specific host. > > It should be straight forward with the exception of a few of our VM's would > have "nested" lv's. For example, on a CentOS VM installed on the dom0 lv > named /dev/xenvg/domu1 it will then have a swap and a root lv that it sees > and runs from. I have used tools like kpartx before to split these nested > lv's into readable data so that may be a paart of the solution. Would anyone > have any experience with similar setups and can guide me in the right > direction?
I'd thought of doing the same thing. Most of our XenServer VM's don't have LVM, so I was looking at hcp from r1soft http://www.r1soft.com/tools/linux-hot-copy/ I'm looking at running hcp as a pre-backup command, and then remove the hcp snapshot as a postbackup command... similar to how some people use VSS under Windows. Gerald
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