On Fri, Jan 7, 2011 at 11:47 PM, Roberto Sassu <roberto.sa...@polito.it>wrote:
> I have some questions about the storage management. > First, even if the transfer manager driver is LVM, the > uploaded image is placed in a file in the directory > /srv/cloud/one/var/images (self contained installation). > Does it is possible to store uploaded images directly > in a LVM logical volume? > Hey Roberto, Not "directly", but the scenario you're describing is possible - for each image you want to be able to use that way, you need to create a logical volume and upload the image in there, on each computing node. Then, in VM templates, use something like: DISK = [ source = "/dev/vg/volumename", ... ] Then tm_clone will indeed create a lvm snapshot from the pre-created image volume - but, to reiterate, the volume you're referencing in your template must exist on each node. I have a (simple,relatively rough) python script that'll take care of this pre-deployment, you can find it here: https://gist.github.com/770767 Note - while testing this, I ran into an issue with etc/tm_lvm/tm_lvmrc not coming up with the right lvm volume names for some reason; it ended up generating the same name for all volumes, so creating multiple VMs failed (but creating only one worked). I had to change: echo $1 |$SED -e 's%^.*/\([^/]*\)/images.*$%\1%' to echo $1 | rev | cut -d/ -f3 | rev I'd be interested to know if you need this change as well, so I can submit a bug. Regards, Stefan Praszalowicz * *
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