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Questions tagged [vdo]

For questions about the Virtual Data Optimizer (VDO) device mapper module.

Virtual Data Optimizer (VDO) is a module which adds data reduction capabilities to the block storage stack. VDO uses inline compression and data techniques to transparently shrink data as it is being written to storage media.

  • Blog articles from Red Hat about VDO: 1, 2
4 questions
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Struggling to grow my physical VDO size after MD grow

I'm hitting a bit of a brick wall here with vdo growPhysical -n pool. I've recently replaced my 3TB HDD's with 4TB HDD's in an md RAID5 array, which is now showing the correct capacity (8TB) but not allowing expansion of the VDO backing. sudo mdadm…
TheGreatMcMeek
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1 answer

New LVM VDO logical volume inactive at startup, even with "--activate y" parameter

I'm trying to make LVM VDO work on my Debian 11.3 (test VM installed from scratch). I've shared my installation procedure here if someone wants to reproduce the problem. Now I'm stuck with a "basic" problem which is : the logical volume is inactive…
tigerblue77
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1 answer

How I can create LVM VDO volume on top of LVM RAID?

Im using LVM to setup my lower level storage with raid5 via lvcreate --type raid5 --size 2T -I 256K -i 3 -n my_lv my_vg Now I want to setup VDO on the top of this using LVM too. Im aware of this man page but I tried lvconvert --type vdo-pool -V 20T…
Jairo Andres Velasco Romero
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0
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1 answer

vdo: ERROR - Device /dev/sdc excluded by a filter

After creating a third disk in vagrant/virtualbox, I was getting this error while trying to create a VDO (Red Hat's Enterprise Linux 8 tool for deduplication and compression). For LVM you usually go like this: parted -s /dev/sdc mklabel gpt parted…
Leo
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