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Friday, January 24 • 11:00am - 11:25am
Estimating dm-vdo storage savings

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dm-vdo is a device mapper target that provides block level
deduplication, compression, and thin provisioning. It can be difficult
to predict how much storage can be saved with dm-vdo because
deduplication and compression are very data dependent. Now there is an
open source vdoestimator tool that can be used to scan a filesystem or
block device for duplicate and compressible blocks using the same
indexing and compression technology used by dm-vdo. While there are
general guidelines for provisioning a dm-vdo volume for some common
workloads, the vdoestimator may help to get a better estimate for
specific data.

This session will demonstrate how to use the vdoestimator tool and
interpret the results with some examples. A brief overview of how
dm-vdo and the vdoestimator work will help to clarify how best to do
that.

Speakers
JW

john Wiele

Senior Developer, Red Hat
Software developer since time immemorial.


Friday January 24, 2020 11:00am - 11:25am
E104 Faculty of Information Technology Brno University of Technology, Božetěchova, Brno-Královo Pole, Czechia

Attendees (58)