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Wednesday, March 11 • 10:30am - 11:20am
Evaluation of Filesystems for Shingled Drives - Hannes Reinecke, SUSE

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Shingled drives impose some limitations on the I/O patterns. Especially the write path requires a strict sequential ordering. Normally filesystems or the block layer are not imposing any ordering requirements, so it'll depend on the filesystem implementation if the ordering can be guaranteed. In this presentation I'll evaluate current general-purpose filesystems (btrfs, ext4, and xfs) and a dedicated filesystem (nilfs) for this ordering guarantee and hence their suitability for shingled drives. Additionally I'll present strategies for deploying filesystems on shingled drives.

Speakers
avatar for Hannes Reinecke

Hannes Reinecke

Team lead Storage & Networking, SUSE Linux GmbH
Studied Physics with main focus image processing in Heidelberg from 1990 until 1997, followed by a PhD in Edinburgh 's Heriot-Watt | University in 2000. | Now working at SUSE Labs with focus on storage and mainframe. Principal contact point for storage related issues on SLES. | Currently I'm working on dusting out murky corners of the linux SCSI stack, and trying to get SMR drives to ... well, not exactly fly, but at least moving at a... Read More →


Wednesday March 11, 2015 10:30am - 11:20am
Studio 3