Agree. Snapshot seems to be a nature solution for it. -----Original Message----- From: Joe Gordon [mailto:joe.gord...@gmail.com] Sent: Tuesday, March 04, 2014 11:26 AM To: OpenStack Development Mailing List (not for usage questions) Cc: Luohao (brian) Subject: Re: [openstack-dev] [nova][cinder] non-persistent storage(after stopping VM, data will be rollback automatically), do you think we shoud introduce this feature?
On Mon, Mar 3, 2014 at 6:00 PM, Yuzhou (C) <vitas.yuz...@huawei.com> wrote: > Hi stackers, > > As far as I know ,there are two types of storage used by VM in openstack: > Ephemeral Storage and Persistent Storage. > Data on ephemeral storage ceases to exist when the instance it is associated > with is terminated. Rebooting the VM or restarting the host server, however, > will not destroy ephemeral data. > Persistent storage means that the storage resource outlives any other > resource and is always available, regardless of the state of a running > instance. > > There is a use case that maybe need a new type of storage, maybe we can call > it non-persistent storage . > The use case is that VMs are assigned to the public ephemerally in public > areas. > After the VM is used, new data on storage of VM ceases to exist when the > instance it is associated with is stopped. > It means stop the VM, Non-persistent storage used by VM will be rollback > automatically. > > Is there any other suggestions? Or any BPs about this use case? > This sounds like ephemeral storage plus snapshots. You build a base image, snapshot it then boot from the snapshot. > Thanks! > > Zhou Yu > > _______________________________________________ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev _______________________________________________ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev _______________________________________________ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
