Which Kernel are you running on? These days, the theoretical limit is 65536 AFAIK. Ilya would know the kernel needed for that. > On 03 Sep 2015, at 15:05, Jeff Epstein <jeff.epstein@xxxxxxxxxxxxxxxx> wrote: > > Hello, > > In response to an rbd map command, we are getting a "Device or resource busy". > > $ rbd -p platform map ceph:pzejrbegg54hi-stage-4ac9303161243dc71c75--php > > rbd: sysfs write failed > > rbd: map failed: (16) Device or resource busy > > > We currently have over 200 rbds mapped on a single host. Can this be the source of the problem? If so, is there a workaround? > > $ rbd -p platform showmapped|wc -l > 248 > > Thanks. > > Best, > Jeff > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com Cheers. –––– Sébastien Han Senior Cloud Architect "Always give 100%. Unless you're giving blood." Mail: seb@xxxxxxxxxx Address: 11 bis, rue Roquépine - 75008 Paris
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