Thanks Craig, I posted your answers to my blog. On Fri, Oct 22, 2010 at 4:04 PM, Craig Carl <craig at gluster.com> wrote: > Joshua - > Thanks for the great write-up! To answer Gart's questions - > > 1. Ideally you shouldn't have any data on the devices you use for new > Gluster volumes, we don't test that extensively. It will generally work, the > self heal process will replicate & distribute the files as necessary, on > first access. You can kick the self heal process off manually by running 'find > . | xargs stat' at the top of the Gluster mount point. > > 2. You can read from the back end, all writes should go through the Gluster > mount point. > > 3. If I understand the question, he is asking if a clone or snapshot of > each AMI in the cluster is an effective way to backup Gluster? If so then > yes, you would want to try and snap each image as close to the same time as > possible. > > Please let me know if you, or any of your readers have any other questions. > > > Thanks, > > Craig > > --> > Craig Carl > Senior Systems Engineer; Gluster, Inc. > Cell - (408) 829-9953 (California, USA) > Office - (408) 770-1884 > Gtalk - craig.carl at gmail.com > Twitter - @gluster > Installing Gluster Storage Platform, the movie!<http://www.youtube.com/user/GlusterStorage> > http://rackerhacker.com/2010/08/11/one-month-with-glusterfs-in-production/ > > > > ------------------------------ > *From: *"Joshua Saayman" <joshua at saayman.me> > *To: *gluster-users at gluster.org > *Sent: *Friday, October 22, 2010 6:05:24 AM > *Subject: *GlusterFS 3.1 on Amazon EC2 Questions > > > I'll appreciate help with the following questions by Gart on my blog > (http://goo.gl/8eKn) > > Thanks > Joshua > > ---- > Thanks for this accessibly straightforward series. A couple basic > questions about the way gluster works: > > 1) If I do this exercise -exactly- as you have done, but one of the > instances EBS volume already has files on it, what happens? Will it > immediately replicate to the other? Will the gluster daemon lazily > replicate? Do I have to call 'rebalance' to trigger the replication? > > 2) Must I perform all file access through the client mount in order to > have integrity? Or can I read and write to the directories that are > pointed to by the volume. > > 3) One of the finest aspects of AWS is AMI creation. Can I create an > AMI based on these servers as a way to back up both the server state > and the file volumes? > ---- > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://gluster.org/cgi-bin/mailman/listinfo/gluster-users >
