This document discusses Ceph, an open-source storage platform that provides object, block, and file storage using a single distributed computer cluster. Ceph's goals are to be completely distributed without single points of failure, scalable to the exabyte level, and freely available. Inktank was created to drive adoption of Ceph in enterprises. Ceph offers advantages like being self-managing, self-healing, web-scale, integrated into Linux and OpenStack, and avoiding vendor lock-in. The document also briefly discusses converged infrastructure using Ceph and other software-based storage solutions.

1. 1EMC CONFIDENTIAL—INTERNAL USE ONLYEMC CONFIDENTIAL—INTERNAL USE ONLY
CEPH
Open Source Storage
platform
Erwan Quigna
21 mars 2014

2. 2EMC CONFIDENTIAL—INTERNAL USE ONLYEMC CONFIDENTIAL—INTERNAL USE ONLY
CePH
• Open Source Project
• Ceph is a free software storage platform designed to
present object, block, and file storage from a single
distributed computer cluster. Ceph's main goals are to be
completely distributed without a single point of failure,
scalable to the exabyte level, and freely-available. The
data is replicated, making it fault tolerant.[1]
• Ceph software runs on commodity hardware. The system
is designed to be both self-healing and self-managing and
strives to reduce both administrator and budget
overhead.
• Choice for Openstack customer
• Current version Emperor (v0.72)

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CePH
• Object Storage :
– REST, S3, Switf
• Block Storage
– integrate with KVM.
– Build on object storage. Thin, clone/snap.
– Similar to Amazon EBS
• File System
– integrated in linux kernel 2.6.34
• All in the same cluster

4. 4EMC CONFIDENTIAL—INTERNAL USE ONLYEMC CONFIDENTIAL—INTERNAL USE ONLY
Inktank
created to drive adoption of CePH to enterprise
Funded by CePH 1st developper Sage Weil
50 people
Customer
Cisco, Deusche Telekom, indiana university …CERN,
Dreamhost

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CePH advantages
• Self Managing and self healing
• Web Scale
• One system to scale
• Integrate into Linux, Openstack, Cloudstack KVM Xen
• Rest management
• No vendor lock in

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Converged Infrastructure
• Best of Breed CI
• Best of Breed offers known quantities of guaranteed performance,
capacity and capabilities
• Reduces TCO and IT project impact
• VCE
• Open Source CI
– Foundation that some service providers use to create IaaS offerings to
compete with Amazon
• Commonly leverage distributed disk/compute using COTS hardware
• OpenStack Cinder
• converged block services like Gluster or Ceph leverage local disk
–

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Software Based Storage
• Software-Only Solutions
– Nexenta and CloudByte (ZFS), Red Hat Storage Server (GlusterFS),
Inktank (based on Ceph) and Sanbolic (MelioFS)..
– ScaleIO
• Bundled Solutions
– Nutanix SimpliVity. commodity hardware configurations, the controller
logic is embedded in the software layer (control plane), without any
proprietary microcode embedded in the data plane.
• OpenStack as an SDS Component
– Targeted specifically at object storage, SwiftStack
– OpenStack is emerging as a strong cloud management platform that
can now manage block storage as well,
• Virtual Instantiations of Storage Arrays
– NetApp Data Ontap Edge, HP StoreOnce VSA and VMware VSA
– ViPR