Re: [ceph-users] Implement replication network with live cluster

2015-03-04 Thread Robert LeBlanc
If I remember right, someone has done this on a live cluster without any issues. I seem to remember that it had a fallback mechanism if the OSDs couldn't be reached on the cluster network to contact them on the public network. You could test it pretty easily without much impact. Take one OSD that

Re: [ceph-users] Implement replication network with live cluster

2015-03-04 Thread Andrija Panic
That was my thought, yes - I found this blog that confirms what you are saying I guess: http://www.sebastien-han.fr/blog/2012/07/29/tip-ceph-public-slash-private-network-configuration/ I will do that... Thx I guess it doesnt matter, since my Crush Map will still refernce old OSDs, that are stoped

Re: [ceph-users] Implement replication network with live cluster

2015-03-04 Thread Wido den Hollander
On 03/04/2015 05:44 PM, Robert LeBlanc wrote: If I remember right, someone has done this on a live cluster without any issues. I seem to remember that it had a fallback mechanism if the OSDs couldn't be reached on the cluster network to contact them on the public network. You could test it

Re: [ceph-users] Implement replication network with live cluster

2015-03-04 Thread Robert LeBlanc
If the data have been replicated to new OSDs, it will be able to function properly even them them down or only on the public network. On Wed, Mar 4, 2015 at 9:49 AM, Andrija Panic andrija.pa...@gmail.com wrote: I guess it doesnt matter, since my Crush Map will still refernce old OSDs, that are

Re: [ceph-users] Implement replication network with live cluster

2015-03-04 Thread Andrija Panic
Thx Wido, I needed this confirmations - thanks! On 4 March 2015 at 17:49, Wido den Hollander w...@42on.com wrote: On 03/04/2015 05:44 PM, Robert LeBlanc wrote: If I remember right, someone has done this on a live cluster without any issues. I seem to remember that it had a fallback

Re: [ceph-users] Implement replication network with live cluster

2015-03-04 Thread Andrija Panic
Thx again - I really appreciatethe help guys ! On 4 March 2015 at 17:51, Robert LeBlanc rob...@leblancnet.us wrote: If the data have been replicated to new OSDs, it will be able to function properly even them them down or only on the public network. On Wed, Mar 4, 2015 at 9:49 AM, Andrija

Re: [ceph-users] Implement replication network with live cluster

2015-03-04 Thread Andrija Panic
I guess it doesnt matter, since my Crush Map will still refernce old OSDs, that are stoped (and cluster resynced after that) ? I wanted to say: it doesnt matter (I guess?) that my Crush map is still referencing old OSD nodes that are already stoped. Tired, sorry... On 4 March 2015 at 17:48,

[ceph-users] Implement replication network with live cluster

2015-03-04 Thread Andrija Panic
Hi, I'm having a live cluster with only public network (so no explicit network configuraion in the ceph.conf file) I'm wondering what is the procedure to implement dedicated Replication/Private and Public network. I've read the manual, know how to do it in ceph.conf, but I'm wondering since this