Hi,

[redirecting back to list]
> Oh, it could be that... can you include the output from 'ceph osd tree'?  
> That's a more concise view that shows up/down, weight, and in/out.
> 
> Thanks!
> sage
> 

root@cepharm17:~# ceph osd tree
# id    weight  type name       up/down reweight
-1      0.52    root default
-21     0.16            chassis board0
-2      0.032                   host cepharm11
0       0.032                           osd.0   up      1       
-3      0.032                   host cepharm12
1       0.032                           osd.1   up      1       
-4      0.032                   host cepharm13
2       0.032                           osd.2   up      1       
-5      0.032                   host cepharm14
3       0.032                           osd.3   up      1       
-6      0.032                   host cepharm16
4       0.032                           osd.4   up      1       
-22     0.18            chassis board1
-7      0.03                    host cepharm18
5       0.03                            osd.5   up      1       
-8      0.03                    host cepharm19
6       0.03                            osd.6   up      1       
-9      0.03                    host cepharm20
7       0.03                            osd.7   up      1       
-10     0.03                    host cepharm21
8       0.03                            osd.8   up      1       
-11     0.03                    host cepharm22
9       0.03                            osd.9   up      1       
-12     0.03                    host cepharm23
10      0.03                            osd.10  up      1       
-23     0.18            chassis board2
-13     0.03                    host cepharm25
11      0.03                            osd.11  up      1       
-14     0.03                    host cepharm26
12      0.03                            osd.12  up      1       
-15     0.03                    host cepharm27
13      0.03                            osd.13  up      1       
-16     0.03                    host cepharm28
14      0.03                            osd.14  up      1       
-17     0.03                    host cepharm29
15      0.03                            osd.15  up      1       
-18     0.03                    host cepharm30
16      0.03                            osd.16  up      1       

I am working on one of these boxes:
<http://www.ambedded.com.tw/pt_spec.php?P_ID=20141109001>
So, each chassis is one 7-node board (with a shared 1gbe switch and
shared electrical supply), and I figured each board is definitely a
separate failure domain.

Regards,

--ck
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