Hi Saurabh, when you a virtual machine from an image a the vm disk is created on computing node where the vm is running under /var/lib/ dirctory . If you delete the vm , you lost data because in this case you do not allocate any volume on cinder. This is the ephemeral storage behaviour. If you start a from an image but you specify the volume option in dashboard, the image is downloaded from glance to cinder volume and if you delete the vm the volume remains on cinder and you can launch another vm from the same volume . If you start a vm with the volume option you can see a new volume under dashboard volume tab: the volume is attacched to the vm you started. If you remove the vm you can see the volume detacched and in available status. Regards Ignazio Il giorno 04/ott/2015 14:51, "saurabh suman" <[email protected]> ha scritto:
> Hi, > > When we don't have cinder and swift in our openstack setup ,where do our > virtual machines get launched and the glance images get stored?? If the > answer is ephemeral what exactly do we mean by that. How does it all > happen ? In that case does it get stored in hard disk? > > Cheers! > Saurav > > _______________________________________________ > Mailing list: > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > Post to : [email protected] > Unsubscribe : > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > >
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