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Thursday, April 21 • 10:30am - 11:20am
BlueStore: A New, Faster Storage Backend for Ceph - Sage Weil, Red Hat

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Traditionally Ceph has made use of local file systems like XFS or btrfs to store its data. However, the mismatch between the OSD's requirements and the POSIX interface provided by kernel file systems has a huge performance cost and requires a lot of complexity. BlueStore, an entirely new OSD storage backend, utilizes block devices directly, doubling performance for most workloads. This talk will cover the motivation a new backend, the design and implementation, the improved performance on HDDs, SSDs, and NVMe, and discuss some of the thornier issues we had to overcome when replacing tried and true kernel file systems with entirely new code running in userspace.

Speakers
avatar for Sage Weil

Sage Weil

Ceph Principal Architect, Red Hat
Sage Weil originally helped design and build Ceph as part of his graduate research at UC Santa Cruz. Since then, he has continued to lead the engineering effort, building Ceph into an open source, unified storage platform with an emphasis on scalability, reliability, and performance for cloud workloads. He currently works as Red Hat in the Office of Technology, where his primary responsibility is to lead the Ceph development community while... Read More →


Thursday April 21, 2016 10:30am - 11:20am
State Ballroom E

Attendees (25)