Hello Burkhard. Yes you are right indeed. Currently I'm using an Archlinux based custom development OS Nautilus. For reef, I have to develop a new custom OS from scratch and revisit all of my dependencies. I had too many issues on my custom Archlinux OS development before and had to spend too much time fixing the issues. I won't do that again. I decided to use Ubuntu 22.04 with Reef. I've done customizations and tunings based on my dependencies, hardware and use case. Ceph OS recommendations: https://docs.ceph.com/en/reef/start/os-recommendations/ " A: Ceph provides packages and has done comprehensive tests on the software in them." - Best. Burkhard Linke <Burkhard.Linke@computational.bio.uni-giessen.de>, 9 Tem 2025 Çar, 23:42 tarihinde şunu yazdı:
Hi,
On 09.07.25 21:21, Özkan Göksu wrote:
Hello Wesley.
Thank you for the warning. I'm aware of this and even with the recommended upgrade path it is not easy or safe for complicated clusters like mine. I have billions of small s3 objects, versions, indexes etc. With each new Ceph release, the rados, db, osd, pg projects started to use new schemas, attributes etc to store the data and index.
Instead of upgrading, I'm gonna export all the data as RAW, destroy the clusters, wipe the drives and start from scratch.
This is the safe and fast upgrade method for me.
one additional blocker is the choice of the OS on the machines. Certain ceph releases might only be available for certain distribution versions, so if you decide to actually upgrade the existing cluster you will probably also have to upgrade the OS.
Starting from scratch might be the faster solution, if you can afford to dump all data to a temporary location.
Best regards,
Burkhard
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