Hi, I'm relatively new to GlusterFS and was wondering if someone may be able to help me with my design. I'm in AU and am in the process of moving a website footprint into AWS in the next few weeks. As part of this I need a highly available shared filesystem to be used by various Windows and Linux servers. I thought GlusterFS was a good fit. The shared filesystem will be mainly housing millions upon millions of photos and needs to be able to survive a single Availability Zone failure. I'll probably start with 4TB's of usable space. Sydney AU only has 2 x available AZ's for use (there is a 3rd AZ but it's hidden and only for use by S3) which I believe poses a problem as I still need to achieve quorum and Read Write access if a single AZ goes down. The longer term solution is to use S3 for these files but that is not practical at the moment (requires significant developer time to re-work lots of custom code) in the required project time frame. My initial thoughts were of using distributed replicated volumes across AZ's (left-a replicated to right-a, left-b to right-b, etc). But if my understanding is correct quorum would not be met as 50% of the bricks would be gone in an AZ failure. I'm open to the idea of using a 3rd AZ in another region (Eg US West) if this would work but comments in the IRC channel suggested that it wouldn't. Does anyone have any thoughts or suggestions? Cheers, Simon -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://supercolony.gluster.org/pipermail/gluster-users/attachments/20130928/674dafbd/attachment.html>