Hi all, I'm Zach Hill, the storage lead at Eucalyptus <http://www.eucalyptus.com>. We're working on adding Ceph RBD support for our scale-out block storage (EBS API). Things are going well, and we've been happy with Ceph thus far. We are a RHEL/CentOS shop mostly, so any other tips there would be greatly appreciated. Our basic architecture is that we have a storage control node that issues control-plan operations: create image, delete, snapshot, etc. This controller uses librbd directly via JNA bindings. VMs access the Ceph RBD Images as block devices exposed via the Qemu/KVM RBD driver on our "Node Controller" hosts. It's similar to OpenStack Cinder in many ways. One of the questions we often get is: Can I run OSDs on my servers that also host VMs? Generally, we recommend strongly against such a deployment in order to ensure performance and failure isolation between the compute and storage sides of the system. But, I'm curious if anyone is doing this in practice and if they've found reasonable ways to make it work in production. Thanks for any info in advance, and we're happy to be joining this community in a more active way. -Zach -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.ceph.com/pipermail/ceph-users-ceph.com/attachments/20140808/ea6da7f9/attachment.htm>
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