Hi, i know, this is not really ceph related anymore. But i guess it could be helpful for others too. I was using: https://ceph.com/dev-notes/adding-support-for-rbd-to-stgt/ and i am currently running in a problem, where ONE LUN is connected to TWO Nodes ( esxi 6.0 ) And the 2nd node is unable to do any kind of write operations on the (successful mounted, and readable ) lun. As it seems, it has to do with reservations. So the question is now, how to solve that. The vmware log says: 2016-09-01T21:09:54.281Z cpu18:33538)NMP: nmp_PathDetermineFailure:3002: SCSI cmd RESERVE failed on path vmhba37:C0:T0:L1, reservation state on device naa.60000000000000000e00000000010001 is unknown. tgtd --version 1.0.55 Any help / idea is appriciated ! Thank you ! -- Mit freundlichen Gruessen / Best regards Oliver Dzombic IP-Interactive mailto:info@xxxxxxxxxxxxxxxxx Anschrift: IP Interactive UG ( haftungsbeschraenkt ) Zum Sonnenberg 1-3 63571 Gelnhausen HRB 93402 beim Amtsgericht Hanau Geschäftsführung: Oliver Dzombic Steuer Nr.: 35 236 3622 1 UST ID: DE274086107 _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com