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Ceph User Survey 2018
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About● Survey conducted from May 1st to May 25th● 342 complete responses● 52 different countries● 4 continents
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General questions
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Where are the Ceph users?
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Organizations using Ceph
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Why Ceph?
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How long have you been using Ceph?
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Are you satisfied with the technology?
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Ceph Clusters
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Total raw capacity● Up to 10 TB: 8%● From 10 TB to 100 TB: 28.31%● From 100 TB to 1 PB: 37.84%● From 1PB to 10PB: 20.91%● From 10PB to 100PB: 4.92%
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Usable capacity● Up to 10 TB: 14.79%● From 10 TB to 100 TB: 35.69%● From 100 TB to 1 PB: 33.76%● From 1PB to 10PB: 13.38%● From 10PB to 100PB: 2.57%
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How many clusters do you operate?
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Which Ceph release(s) do they run?
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Which Ceph packages do you use?
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What O.S. are used on the cluster nodes?
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How many OSD nodes in your cluster?● Up to 10 nodes: 56.19%● From 10 to 100 nodes: 35.31%● From 100 to 1000 nodes: 7.18%● From 1000 to 15000 nodes: 1.25%
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How many OSDs in your cluster?
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Which OSD backends are used?
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What kind of redundancy is used?
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Erasure code 'k' and 'm' levels
8+34+22+1
3+2
8+25+2
6+3
5+36+2
10+5
6+4
4+3
4+37+3 10+4
16+4
1+14+55+47+2
7+4
9+411+4
12+3
12+3 16+10
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Which erasure code plugins do you use?
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Hardware
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What hardware vendors do you use for the nodes?
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What processor architecture do you use?
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Which type of storage devices are used?
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What type of NICs are used on the nodes?
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Do you use a dedicated network for the OSDs?
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Use cases, platforms and interfaces
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What are the use cases for the Ceph cluster?
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What are the use cases for the Ceph cluster? (cont)
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Which platforms do you use with Ceph?
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What are the interfaces used on the cluster?
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Environments and Interfaces
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Programming languages and Librados/Librbd
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RADOS Block Device (RBD)
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RBD workloads
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Interfaces to access RBD
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VMware access methods
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Hyper V (or Windows clients) access methods
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RADOS Gateway (RGW)
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RGW workloads
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RGW APIs
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RGW client side libraries do you use?
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RGW authentication mechanisms
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RGW external load balancers
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RGW federated multi-sites
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CephFS
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CephFS workloads
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Interfaces to access CephFS
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Management & Operation
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Management and monitoring tools
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Monitoring and management tools (cont)
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Deployment and configuration management tools
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Ceph support from a commercial vendor?
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If you need help, where is your first stop?
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Where Ceph community should focus its efforts?
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Ceph: the future of Storage