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Storage Visibility and Optimization A Story of Ceph

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Cloud/Big-data Winnovation Team

Alex Holden Damian Van Vuuren Ailing Zhang

Marc Solanas Matt Weeks Pengfei Zhang

Kai Zhang

Xinyuan Huang

Debo Dutta

Yathiraj Udupi

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Why do we need storage visibility?

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OpenStack Storage

Openstack APIs

Cinder

????

Swift Glance

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The Storage Jungle

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Why is visibility useful? Optimal object

distribution Failure detection

Make underlying configuration

easier

Performance tuning

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Case Study: Ceph

Source: http://ceph.com/docs/master/architecture/

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Case Study: Ceph

hash(“foo”) % 128 = 0x3f

“bar’ = 2

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Visibility in Ceph

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The visibility we want in Ceph

Visual monitoring

Object distribution

OSD real time status

Visual management of

crush rules

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First Ceph Dashboard Within Horizon!!!

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Ceph Horizon Panel Demo

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Use case: Identify bottlenecks

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Optimization Rebalance storage nodes dynamically

Preview changes (Future work)

Change configuration automatically (Future work)

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Conclusion Reduce downtime

Increase storage performance

Provide analytics and historical data

More insights to follow!