Systems Administrator
Research Computing Services Team
University of Victoria
From: Martin Verges
Date: Friday, November 15, 2019 at 11:52 AM
To: Janne Johansson
Cc: Cave Mike , ceph-users
Subject: Re: [ceph-users] Migrating from block to lvm
I would consider doing it host-by-host wise, as you
of Victoria
O: 250.472.4997
From: Janne Johansson
Date: Friday, November 15, 2019 at 11:46 AM
To: Cave Mike
Cc: Paul Emmerich , ceph-users
Subject: Re: [ceph-users] Migrating from block to lvm
Den fre 15 nov. 2019 kl 19:40 skrev Mike Cave
mailto:mc...@uvic.ca>>:
So would you recommend
I would consider doing it host-by-host wise, as you should always be able
to handle the complete loss of a node. This would be much faster in the end
as you save a lot of time not migrating data back and forth. However this
can lead to problems if your cluster is not configured according to the
Den fre 15 nov. 2019 kl 19:40 skrev Mike Cave :
> So would you recommend doing an entire node at the same time or per-osd?
>
You should be able to do it per-OSD (or per-disk in case you run more than
one OSD per disk), to minimize data movement over the network, letting
other OSDs on the same
So would you recommend doing an entire node at the same time or per-osd?
Senior Systems Administrator
Research Computing Services Team
University of Victoria
O: 250.472.4997
On 2019-11-15, 10:28 AM, "Paul Emmerich" wrote:
You'll have to tell LVM about multi-path, otherwise LVM gets
You'll have to tell LVM about multi-path, otherwise LVM gets confused.
But that should be the only thing
Paul
--
Paul Emmerich
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On Fri, Nov
Greetings all!
I am looking at upgrading to Nautilus in the near future (currently on Mimic).
We have a cluster built on 480 OSDs all using multipath and simple block
devices. I see that the ceph-disk tool is now deprecated and the ceph-volume
tool doesn’t do everything that ceph-disk did for
