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Hello Ceph Users: Ceph baremetal client attempting to map device volume via kernel RBD Driver, resulting
in unable to map device volume and outputs I/O error. This is Ceph client only, no MDS,OSD or MON running…see I/O error output below. Client Host Linux Kernel Version : [root@root ceph]# uname -a Linux root 3.10.25-11.el6.centos.alt.x86_64 #1 SMP Fri Dec 27 21:44:15 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux Ceph Version: [root@root ceph]# ceph -v ceph version 0.80.1 (a38fe1169b6d2ac98b427334c12d7cf81f809b74) Check Kernel RBD driver: [root@root ceph]# locate rbd.ko /lib/modules/3.10.25-11.el6.centos.alt.x86_64/kernel/drivers/block/rbd.ko /lib/modules/3.10.25-11.el6.centos.alt.x86_64/kernel/drivers/block/drbd/drbd.ko Check Client to Ceph-Server Connections: [root@root ceph]# ceph osd lspools 0 data,1 metadata,2 rbd,3 vsmpool_hp1,4 vsmpool_perf1,5 vsmpool_vperf1,6 openstack_hp1,7
openstack_perf1,8 openstack_vperf1,9 vsmpool_perf2,10 vsmpool_hp2,11 vsmpool_vperf2,12 testopnstack,13 ec_perf_pool,14 ec_perf_pool1,15 ec_perf_pool2,16 ec_hiperf_pool1,17 ec_valperf_pool1, Created RBD: [root@root ceph]# rbd create rbd9 --size 104800 --pool vsmpool_hp1 --id admin
Check RBD: [root@root ceph]# rbd ls vsmpool_hp1 rbd1 rbd2 rbd3 rbd4 rbd5 rbd6 rbd7 rbd8 rbd9 Display RBD INFO: [root@root ceph]# rbd info vsmpool_hp1/rbd9 rbd image 'rbd9': size 102 GB in 26200 objects order 22 (4096 kB objects) block_name_prefix: rb.0.227915.238e1f29 format: 1 Map RBD: [root@root ceph]# rbd map vsmpool_hp1/rbd9 --id admin
rbd: add failed: (5) Input/output error Thank You In advance for sharing any possible solution to this error. Regards, -Ben |
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