All images are downloaded to the local filesystem. Swift is an object storage system, not a block storage system. The original image will remain in swift to be downloaded again but it is not modified.
Vish On Feb 23, 2012, at 7:46 AM, Michaël Van de Borne wrote: > Hi all, > > I'd like to understand how things go with ephemeral and persistant volumes. > For instance, say that my gold images are stored in a Swift storage network, > connected to Glance. > > When I ask Nova to boot the VM, > - will the disk image stay in Swift storage? > - will the physical compute node copy the image from Swift to its local > filesystem? > - will ephemeral volumes be stored on local compute node filesystem whereas > persistant drives be stored in Swift? > > According to these answers, I'll know if the compute nodes of my cloud should > have disks attached or if no data will ever be stored on these nodes even > when VMs are running. > > maybe this is documented somewhere, but I didn't find clear information about > ephemeral and persistant volume management? > > thank you, > > Michaël > > > -- > Michaël Van de Borne > R&D Engineer, SOA team, CETIC > Phone: +32 (0)71 49 07 45 Mobile: +32 (0)472 69 57 16, Skype: mikemowgli > www.cetic.be, rue des Frères Wright, 29/3, B-6041 Charleroi > > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : openstack@lists.launchpad.net > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
