[ceph-users] Re: Bluestore migration: per-osd device copy

2021-01-04 Thread Chris Dunlop
Just to follow up... I was able to use a per-osd device copy to migrate nearly 80 FileStore osds to BlueStore using a version of the script in: https://tracker.ceph.com/issues/47839 Cheers, Chris On Fri, Oct 09, 2020 at 12:05:32PM +1100, Chris Dunlop wrote: Hi, The docs have scant detail

[ceph-users] Re: Bluestore migration: per-osd device copy

2020-10-12 Thread Chris Dunlop
Hi Anthony, Thanks for looking into this and opening the ticket - I'll keep an eye on it. For prepping the LVMs etc. I was thinking could probably use 'ceph-volume lvm prepare' then fixing up the relevant LV tags with the appropriate values from the origin osd. Cheers, Chris On Mon, Oct 12

[ceph-users] Re: Bluestore migration: per-osd device copy

2020-10-12 Thread Anthony D'Atri
Poking through the source I *think* the doc should indeed refer to the “dup” function, vs “copy”. That said, arguably we shouldn’t have a section in the docs that says "there’s this thing you can do but we aren’t going to tell you how”. Looking at the history / blame info, which only seems to

[ceph-users] Re: Bluestore migration: per-osd device copy

2020-10-12 Thread Eugen Block
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

[ceph-users] Re: Bluestore migration: per-osd device copy

2020-10-11 Thread Chris Dunlop
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-osd-device-copy On Fri, Oct 09, 2020 at 07:03:33AM +, Eugen Block wrote: I think by "

[ceph-users] Re: Bluestore migration: per-osd device copy

2020-10-09 Thread Eugen Block
Hi, I think by "copy function" would be the "bluefs-bdev-migrate" command from ceph-bluestore-tool, this is an excerpt from the man paage: ---snip--- bluefs-bdev-migrate --dev-target new-device --devs-source device1 [--devs-source device2] Moves BlueFS data from source device