Hello,
On Mon, 31 Aug 2015 22:44:05 + Stillwell, Bryan wrote:
> We have the following in our ceph.conf to bring in new OSDs with a weight
> of 0:
>
> [osd]
> osd_crush_initial_weight = 0
>
>
> We then set 'nobackfill' and bring in each OSD at full weight one at a
> time (letting things se
On Mon, 31 Aug 2015 08:57:23 +0200 Udo Lembke wrote:
> Hi Christian,
> for my setup "b" takes too long - too much data movement and stress to
> all nodes. I have simply (with replica 3) "set noout", reinstall one
> node (with new filesystem on the OSDs, but leave them in the crushmap)
> and start
We have the following in our ceph.conf to bring in new OSDs with a weight
of 0:
[osd]
osd_crush_initial_weight = 0
We then set 'nobackfill' and bring in each OSD at full weight one at a
time (letting things settle down before bring in the next OSD). Once all
the OSDs are brought in we unset 'no
When we know we need to off a node, we weight it down over time. Depending
on your cluster, you may need to do this over days or hours.
In theory, you could do the same when putting OSDs in, by setting noin,
and then setting weight to something very low, and going up over time. I
haven¹t tried thi
On Mon, Aug 31, 2015 at 5:07 AM, Christian Balzer wrote:
>
> Hello,
>
> I'm about to add another storage node to small firefly cluster here and
> refurbish 2 existing nodes (more RAM, different OSD disks).
>
> Insert rant about not going to start using ceph-deploy as I would have to
> set the clus
Hi Christian,
for my setup "b" takes too long - too much data movement and stress to all
nodes.
I have simply (with replica 3) "set noout", reinstall one node (with new
filesystem on the OSDs, but leave them in the
crushmap) and start all OSDs (at friday night) - takes app. less than one day
for
Hello,
I'm about to add another storage node to small firefly cluster here and
refurbish 2 existing nodes (more RAM, different OSD disks).
Insert rant about not going to start using ceph-deploy as I would have to
set the cluster to no-in since "prepare" also activates things due to the
udev magi
