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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.

avatar for Sage Weil

Sage Weil

Ceph Project Leader, Red Hat
Sage Weil helped developed Ceph as part of his graduate studies at the University of California, Santa Cruz. After graduating he continued to develop the system and build an open source community around Ceph with the support of DreamHost. In 2012, he co-founded Inktank to productize... Read More →

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