[one-users] Images problem

[Csom Gyula]

Hi,

though I haven't tried any of the following approaches... it may still help you:)

There's a component called "scp-wave" [1] in the ONE ecosystem catalogue that may speed up
image transfers.

You may implement a special TM MAD that supports read-write snapshots when cloning images,
for instance uses LVM2 as storage backend. The existing LVM-based TM MAD [3] could be a
good starting point (it currently seems to copy images, so you should change it do do snapshotting).

Cheers,
Gyula

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[1] scp-wave: http://www.opennebula.org/software:ecosystem:scp-wave
[2] LVM-based TM MAD doc: http://www.opennebula.org/documentation:rel1.4:sm#lvm
the clone script: http://dev.opennebula.org/projects/opennebula/repository/revisions/master/entry/src/tm_mad/lvm/tm_clone.sh
________________________________
Feladó: users-bounces at lists.opennebula.org<mailto:users-bounces at lists.opennebula.org> [users-bounces at lists.opennebula.org<mailto:users-bounces at lists.opennebula.org>] ; meghatalmazó: Luca Lorenzini [lorenzini.luca at gmail.com<mailto:lorenzini.luca at gmail.com>]
Küldve: 2010. szeptember 15. 17:10
Címzett: users at lists.opennebula.org<mailto:users at lists.opennebula.org>
Tárgy: [one-users] Images problem

Hi, i'm an italian student and i'm using OpenNebula 1.4 for my thesis. I need to build a Virtual Lab that will permit to the students to use a preconfigurated vm with a browser. My problem is that every time a student request a vm OpenNebula will copy the "virgin" vm image (it's about 4GB) and it takes long time. I know that i could link to the image, but i need that students have root access to the vm and with linking there is a concurrent use of the image. And now my question: there is a way to keep the image "virgin" without copy it?

Luca