It’s a long shot, but check if librados is installed.
From: ceph-users [mailto:[email protected]] On Behalf Of Daleep Bais Sent: 11 September 2015 10:18 To: Jake Young <[email protected]>; [email protected] Cc: Ceph-User <[email protected]> Subject: Re: [ceph-users] RBD with iSCSI Hi Jake, Hello Paul, I was able to mount the iscsi target to another initiator. However, after installing the tgt and tgt-rbd, my rbd was not working. Getting error message : root@ceph-node1:~# rbd ls test1 rbd: symbol lookup error: rbd: undefined symbol: _ZTIN8librados9WatchCtx I am using this node as target for iscsi initiator ( Ref : http://tracker.ceph.com/issues/12563) and using other node in cluster to create pools and images. root@ceph-node1:~# tgtadm --version 1.0.51 Paul, I will also check the option you have suggested. Appreciate the suggestion! Thanks. Daleep Singh Bais On Thu, Sep 10, 2015 at 7:57 PM, Jake Young <[email protected] <mailto:[email protected]> > wrote: On Wed, Sep 9, 2015 at 8:13 AM, Daleep Bais <[email protected] <mailto:[email protected]> > wrote: Hi, I am following steps from URL http://www.sebastien-han.fr/blog/2014/07/07/start-with-the-rbd-support-for-tgt/ to create a RBD pool and share to another initiator. I am not able to get rbd in the backstore list. Please suggest. below is the output of tgtadm command: tgtadm --lld iscsi --op show --mode system System: State: ready debug: off LLDs: iscsi: ready iser: error Backing stores: sheepdog bsg sg null ssc smc (bsoflags sync:direct) mmc (bsoflags sync:direct) rdwr (bsoflags sync:direct) Device types: disk cd/dvd osd controller changer tape passthrough iSNS: iSNS=Off iSNSServerIP= iSNSServerPort=3205 iSNSAccessControl=Off I have installed tgt and tgt-rbd packages till now. Working on Debian GNU/Linux 8.1 (jessie) Thanks. Daleep Singh Bais _______________________________________________ ceph-users mailing list [email protected] <mailto:[email protected]> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com Hey Daleep, The tgt you have installed does not support Ceph rbd. See the output from my system using a more recent tgt that supports rbd. tgtadm --lld iscsi --mode system --op show System: State: ready debug: off LLDs: iscsi: ready iser: error Backing stores: rbd (bsoflags sync:direct) sheepdog bsg sg null ssc rdwr (bsoflags sync:direct) Device types: disk cd/dvd osd controller changer tape passthrough iSNS: iSNS=Off iSNSServerIP= iSNSServerPort=3205 iSNSAccessControl=Off You will need a new version of tgt. I think the earliest version that supports rbd is 1.0.42 https://github.com/fujita/tgt
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