Hi,
the short answer is yes, but without knowing anything about the
cluster or what happened exactly it's a wild guess.
In general, you can use the ceph-objectstore-tool [1] to export a PG
(one replica or chunk) from an OSD and import it to a different OSD. I
have to add, I never had to do this myself so all I can do is point
you to the docs. Here's an example [2] of the command. Depending on
the size of your PGs you'll need plenty of local disk space (or some
network mount etc.) for the export. Note that OSDs have to be shut
down in order for the objectstore-tool to work on the OSD. Maybe try
it in a test environment first to get familiar with how it works.
Regards,
Eugen
[1] https://docs.ceph.com/en/pacific/man/8/ceph-objectstore-tool/
[2] https://hawkvelt.id.au/post/2022-4-5-ceph-pg-export-import/
Zitat von Benno Wulf <benno.wulf@wulf.systems>:
Hi guys,
I'm awake since 36h and try to restore a broken ceph Pool (2 PGs incomplete)
My vm are all broken. Some Boot, some Dont Boot...
Also I have 5 removed disk with Data of that Pool "in my Hands" - Dont ask...
So my question is it possible to restore Data of these other disks
and "add" them thee others for healing?
Best regards
Ben
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