Re: OSD replacement

Corey Kovacs <corey.kovacs@xxxxxxxxx> · Tue, 14 Apr 2015 09:34:50 -0700

Vikhyat,
I went through the steps as I did yesterday but with one small change. I was putting the --zap-disk option before the host:disk option.  Now it works as expected.  I'll try it again with the "wrong" syntax to see if that's really the problem but it's the only difference between working and not working.  
Thanks for the help.
C
On Apr 14, 2015 6:47 AM, "Corey Kovacs" <corey.kovacs@xxxxxxxxx> wrote:
Thanks for the quick response. I have tried every set of instructions I can find. The latest were these.

http://karan-mj.blogspot.com/2014/03/admin-guide-replacing-failed-disk-in.html

Which seem to mimic what are in the official docs. I'll try again using the official docs to the letter today. Maybe I'm not waiting long enough between steps?

-C

On Tue, Apr 14, 2015 at 5:38 AM, Vikhyat Umrao <vumrao@xxxxxxxxxx> wrote:

    Hi,

        I hope you are following this :

http://ceph.com/docs/master/rados/operations/add-or-rm-osds/#removing-osds-manual

      After removing the osd successfully run the following command :

     # ceph-deploy --overwrite-conf osd create
        <osd-host>:<device-path> --zap-disk

        It will give you the same osd id for new osd as old one for that
        disk.

    Regards,

        Vikhyat

    On 04/14/2015 05:54 PM, Corey Kovacs
      wrote:

                                I am fairly new to ceph and so far
                                  things are going great. That said,
                                  when I try to replace a failed OSD, I
                                  can't seem to get it to use the same
                                  OSD id#. I have gotten it to point
                                  which a "ceph osd create" does use the
                                  correct id# but when I try to use
                                  ceph-deploy to instantiate the
                                  replacement, I get working osd which
                                  uses the next highest number.

                                My setup is....

                              18 nodes

                            12 OSD's each

                          216 total OSD's

                        Ceph 0.80.7

                      ceph-deploy 1.15.22( also tried 1.15.11)

                    RHEL 6.6

                  All of the docs I've read say that if what has
                  happened to me does occurr, then it's likely the
                  original OSD references are not quite cleared out. So
                  my questions are....

                1. How do I track down all traces of the old OSD

              2. Can someone point me to a known good set of
              instructions for using cep-deploy to replace an OSD using
              the samel ID?

            3. Is using the same ID a deprecated idea?

          Thanks

        -C

_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com

_______________________________________________

ceph-users mailing list

ceph-users@xxxxxxxxxxxxxx

http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com

_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com