Andreas, This isn't the same as the similar thread, where an OST is being replaced (keeping the same number). Doesn't he just have to re-do the writeconf, to delete references to the OST in the MGS, as in Bug 22283?
There will remain a gap in the OST numbers, but that should be okay if there are no objects, right? Kevin On May 26, 2010, at 6:22 PM, Florent Parent <[email protected]> wrote: > On Wed, May 26, 2010 at 19:08, Andreas Dilger <[email protected] > > wrote: >> On 2010-05-26, at 16:49, Florent Parent wrote: >>> >>> on MGS: >>> lctl conf_param osc.lustre1-OST002f-osc.active.osc.active=0 >> >> If you specified the above, it is possible that you only >> deactivated it on the MDS, not on the clients as well. > > Right. It was executed on all clients as well. > >> >>> Many days later, and even following a complete server/clients >>> reboot, >>> we are now seeing this target being active on clients: >>> >>> on MDT: >>> [r...@mds2 ~]# lctl get_param osc.lustre1-OST002f-osc.active >>> osc.lustre1-OST002f-osc.active=0 >>> [r...@mds2 ~]# lctl dl|grep 002f >>> 51 UP osc lustre1-OST002f-osc lustre1-mdtlov_UUID 5 >> >> The device is configured, but if it is not active it will not be >> used for anything. >> >>> on client: >>> # ssh r101-n33 lctl dl |grep 002f >>> 50 UP osc lustre1-OST002f-osc-ffff810377354000 >>> ef3f455a-7f67-134e-cf38-bcc0d9b89f26 4 >> >> What does "active" report for this OSC on a client? > > Shows 0 (I don't know why we are seeing a double entry here). So I > guess it's inactive. I was under the impression references to the OST > would go away. It's also confusing to have the OST show as UP in "lctl > dl". > > # ssh r101-n33 lctl get_param osc.lustre1-OST002f-osc*.active > osc.lustre1-OST002f-osc-ffff810371ac3c00.active=0 > osc.lustre1-OST002f-osc-ffff810377354000.active=0 > > Thanks > Florent > _______________________________________________ > Lustre-discuss mailing list > [email protected] > http://lists.lustre.org/mailman/listinfo/lustre-discuss _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
