Oh, I see. Then there's probably no way around replacing the entire host.
Zitat von Robert Stanford <rstanford8896@xxxxxxxxx>:
Eugen: I've tried similar approaches in the past and it seems like it
won't work like that. I have to zap the entire journal disk. Also I plan
to use the configuration tunable for making the bluestore partition (wal,
db) larger than the default
On Mon, Aug 6, 2018 at 2:30 PM, Eugen Block <eblock@xxxxxx> wrote:
Hi,
How then can one upgrade journals to BlueStore when there is more than one
journal on the same disk?
if you're using one SSD for multiple OSDs the disk probably has several
partitions. So you could just zap one partition at a time and replace the
OSD. Or am I misunderstanding the question?
Regards,
Eugen
Zitat von Bastiaan Visser <bvisser@xxxxxxxxxx>:
As long as your fault domain is host (or even rack) you're good, just take
out the entire host and recreate all osd's on it.
----- Original Message -----
From: "Robert Stanford" <rstanford8896@xxxxxxxxx>
To: "ceph-users" <ceph-users@xxxxxxxxxxxxxx>
Sent: Monday, August 6, 2018 8:39:07 PM
Subject: Upgrading journals to BlueStore: a conundrum
According to the instructions to upgrade a journal to BlueStore (
http://docs.ceph.com/docs/master/rados/operations/bluestore-migration/),
the OSD that uses the journal is destroyed and recreated.
I am using SSD journals, and want to use them with BlueStore. Reusing
the
SSD requires zapping the disk (ceph-disk zap). But this would take down
all OSDs that use this journal, not just the one-at-a-time that I destroy
and recreate when following the upgrade instructions.
How then can one upgrade journals to BlueStore when there is more than
one
journal on the same disk?
R
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