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Sunday, January 26 • 2:00pm - 2:55pm
oVirt 4k - teaching an old dog new tricks

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How can we have compression and deduplication using VDO, the new Linux
compression layer? How can we use the latest and greatest disks drives?
We need to support disks with 4k block size.

oVirt is your best friend when you need to manage your virtualized data
center, but when it was created 10 years ago, support for 4k storage was
not considered. Can you teach an old dog new tricks? Sure you can!

In this talk we will share what we learned implementing 4k storage
support in oVirt. We will present the challenges teaching old and
stubborn code base to work with disks using 4k storage, and how we
addressed them; introducing storage format v5, moving from sectors to
bytes, detection of block size on file storage, improving testing in
storage area, adding new 4k APis to sanlock and improving qemu block
size detection.

avatar for Vojtech Juranek

Vojtech Juranek

Developer, Red Hat
Works at Red Hat on storage part of oVirt project and is a contributor to various open source projects.
avatar for Nir Soffer

Nir Soffer

Principal Software Engineer, Red Hat
Nir is a long-time contributor to free software projects, working in Red Hat on storage management in oVirt. He is a co-maintainer and lead contributor of vdsm, ovirt-imageio and ioprocess. He has spoken about Python concurrency in PyCon Israel 2017 and about Ceph integration with... Read More →

Sunday January 26, 2020 2:00pm - 2:55pm CET
D0207 Faculty of Information Technology Brno University of Technology, Božetěchova, Brno-Královo Pole, Czechia