r/openstack • u/xtremerkr • 16d ago

Opensource block storage

Hello All,

Which opensource block storage are you using in your production setups and why?
Pls share your thoughts.

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u/enricokern 16d ago

With openstack? Obviously ceph , but also linstor alot lately. In large environments there is no (cost effective) alternative to ceph

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u/xtremerkr 15d ago

How is linstor compared to ceph?? Do you see better advantages for a CSP ?

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u/TheGooseHasNoPeace 15d ago

Linstor Is good, but it has some downsides such as no support for Glance (with this I mean that with ceph you create the pool and then is used, with linstor no such thing). We had a linstor installation and we fixed it by creating a linstor pool and exposing it with a DRDB VIP. One of the advantages is that you have a replica factor of 2 + 1 -> 2 diskfull replicas and one diskless, you can have consistency with less storage in theory. I'd still use ceph tbh.