FYI ---------- Forwarded message ---------- From: Daniel Morris <daniel.mor...@rackspace.com> Date: 2013/11/7 Subject: Re: [Openstack] [TROVE] - Difference between Backup and Snapshot To: Giuseppe Galeota <giuseppegale...@gmail.com>
Giuseppe, I recommend sending these questions on to the openstack-dev list. This may be why you are not seeing responses. Someone from the Trove team should jump in on that list give you a run down, and if not, I will do my best to explain. Per your first question, I believe it to be just a terminology mismatch. The system does backups and currently is implemented using mysqldump and percona xtrabackup. It is conceivable that someone could create a backup type that does an actual volume snapshot, but that capability has not been written yet. Thanks, Daniel From: Giuseppe Galeota <giuseppegale...@gmail.com> Date: Wednesday, November 6, 2013 3:05 AM To: "openst...@lists.openstack.org" <openst...@lists.openstack.org> Subject: Re: [Openstack] [TROVE] - Difference between Backup and Snapshot Can you give me a simple workflow that explains the process of a backup/snapshot? Thanks, Giuseppe 2013/11/6 Giuseppe Galeota <giuseppegale...@gmail.com> > Dear all, > what is the difference between Snapshot and Backup in the context of Trove > (o Redwwarf) database backups that I see > here<https://wiki.openstack.org/wiki/Trove/snapshot-design> > ? > > Is it maybe the following: > - backup = copy of volume in which data are stored; > - snapshot = copy of volume plus virtual machine used to host the engine? > > Are they the same concept? > > Thanks, > Giuseppe >
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