On 06/08/13 12:08, Kevin Weiler wrote:
Hi again Ceph devs,
I'm trying to deploy ceph using puppet and I'm hoping to add my osds
non-sequentially. I spoke with dmick on #ceph about this and we both
agreed it doesn't seem possible given the documentation. However, I have
an example of a ceph cluster that was deployed using ceph-deploy and it
seems to have non-sequential osds. I've pasted the output of "ceph osd
tree" and my ceph.conf here:
http://pastebin.com/0zXvwWcc
Is it possible to add osds non-sequentially? It seems like this
deployment is doing it. Cheers!
FWIW, it is possible for force this behaviour by adding a bunch of OSDs
and them removing them.
Say you wanted your osds to be numbered as '1XX' for rack 1 and '2XX'
for rack 2. You'd all 299 osds and then you'd remove the first 100 (0-99).
However, the moment you'd add a new osd, id 0 would be reused instead of
assigning it id 300.
How ceph-deploy managed to do such deployment I don't know. Maybe some
earlier version hacked around it to do just what the user wanted? Seems
farfetched to me.
Do you recall which version were you using when you managed to deploy
those osds?
-Joao
--
Joao Eduardo Luis
Software Engineer | http://inktank.com | http://ceph.com
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