Ceph and Apache CloudStack

Ceph and Apache CloudStack

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  Ceph and ApacheCloudStack David Nalley ke4qqq@apache.org @ke4qqq
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  #whoami Distributed storage junkie Recoveringsysadmin Member, Apache Software Foundation PMC Member, Apache CloudStack Employed by Citrix in the Open Source Business Office
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  Setting the stage ApacheCloudStack is... ● an open source IaaS platform ● proven in production at massive scale ● awesome
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  Gorgeous UI
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  API ● Native: http://cloudstack.apache.org/docs/api ●EC2
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  A brief historyof cloud-y storage ● Most would say it started early 2006 with S3 launch ● This really set the stage and everyone's assumptions. ● Cloud-y storage == S3 == Object Storage ● Incredibly useful - typically able to scale well past traditional filesystem levels ● Super simple - to consume.
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  A brief historyof cloud-y storage ● Since then, we've had a number of open source and proprietary object storage alternatives emerge: – OpenStack Swift – Riak CS – Ceph (has an object storage option) – Caringo
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  But we havelargely ignored.... ● EC2 - used ephemeral storage initially ● Introduced EBS – Apparently zone-wide block storage
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  So object storageis nice but... ● Doesn't fill the void for EBS-like storage ● Neither does traditional storage ● NAS/SANs aren't economically scalable
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  Rados Block Device ●Ceph provides RBD ● Exposes a block storage device - like a SAN ● Easily scales for both performance and capacity
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  Rados Block Device- Features ● Thin-provisioning ● Snapshotting ● Caching
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  Let's talk abouttoday ● CloudStack primarily is a consumer of storage ● Historically we've made storage the fault line – Concerns were IOPS, SPOF, Cost – Typically no more than 16 hypervisors per a single storage resource – So you needed lots of storage resources.....or just use local disk ● Distributed storage gives better scalability. – Mimics EBS requires data-center wide capabilities – Reduces costs, and constraints.
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  What else iscoming.. ● Support for format 2 RBD ● Snapshots ● Datacenter wide storage resources. ● Removal of need for legacy storage
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  What else iscoming.. XenServer support http://xenserver.org/blog/entry/tech-preview-of-xenserver-libvirt-ceph.html
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  Resources ● http://ceph.com/docs/master/rbd/rbd-cloudstack/ ● http://blog.widodh.nl/
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  Questions
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  Contact ● Project – http://cloudstack.apache.org –#cloudstack on irc.freenode.net ● Me – ke4qqq on irc.freenode.net – ke4qqq@apache.org – @ke4qqq on Twitter