I really should read these emails more carefully...
Sorry, thanks for pointing that out. I haven't done the filestore migration per OSD. I
created a filestore OSD in my lab setup to play around with ceph-objectstore-tool but I
couldn't find anything except for '--op dup' but it's not really clear
what exactly that does. I figured it could be something like "duplicate" and
tried a couple of different approaches but none of them succeeded.
Maybe someone else has more insights.
Zitat von Chris Dunlop <chris(a)onthe.net.au>au>:
Hi Eugen,
Reminder: I'm looking for guidance / hints on how to migrate from filestore to
bluestore using a "per-osd device copy":
https://docs.ceph.com/en/latest/rados/operations/bluestore-migration/#per-o…
On Fri, Oct 09, 2020 at 07:03:33AM +0000, Eugen Block wrote:
I think by "copy function" would be the
"bluefs-bdev-migrate" command from ceph-bluestore-tool, this is an excerpt from
the man paage:
It looks like ceph-bluestore-tool is purely about dealing with bluestore osds,
there's no facility to migrate from filestore to bluestore.
There have been several threads about the process
on this list, I don't have a link at hand right now.
I've not been able to find any threads relating to migrating from filestore to
bluestore using a per-osd device copy - i.e. where the osd data is copied directly from an
original filestore store to a new bluestore store, then the new store "becomes"
the original osd.
The advantage of doing this would be to remove the rebalancing involved in the simple
method of creating a new bluestore osd and marking out the old filestore osd (then rinse
and repeat until all filestores have been replaced).
Cheers,
Chris
_______________________________________________
ceph-users mailing list -- ceph-users(a)ceph.io
To unsubscribe send an email to ceph-users-leave(a)ceph.io