Thanks for the reply. Ceph is version 0.73-1precise, and the kernel release is 3.11.9-031109-generic. also rbd showmapped shows 16 lines of output. Thanks again. Tom. On 01/04/14 15:49, Ilya Dryomov wrote: > On Tue, Apr 1, 2014 at 6:31 PM, Tom <tom at t0mb.net> wrote: >> Hi, >> >> I'm seeing this error trying to map an rbd. >> >> root at fh-ceph01-export01:~# rbd map >> hosting_linux_sharedweb/linux_ded_backup_01 --id=ff-ceph01-export >> rbd: add failed: (34) Numerical result out of range >> >> Is perhaps the string I'm writing too large for /sys/bus/rbd/add? Output >> from strace: >> >> open("/sys/bus/rbd/add", O_WRONLY) = 3 >> write(3, "10.66.104.64:6789,10.66.104.65:6789,10.66.104.66:6789 >> name=ff-ceph01-export,key=client.ff-ceph01-export hosting_linux_sharedweb >> linux_ded_backup_01", 147) = -1 ERANGE (Numerical result out of range) > Hi Tom, > > Can you give us your kernel version and ceph version? Also, what's the > output of rbd showmapped | wc -l ? > > Thanks, > > Ilya