hi,all we deploy ceph with ceph-ansible.osds,mons and daemons of iscsi runs in docker. I create iscsi target according to https://docs.ceph.com/docs/luminous/rbd/iscsi-target-cli/. I discovered and logined iscsi target on another host,as show below: [root@node1 tmp]# iscsiadm -m discovery -t sendtargets -p 192.168.42.110 192.168.42.110:3260,1 iqn.2003-01.com.teamsun.iscsi-gw:iscsi-igw 192.168.42.111:3260,2 iqn.2003-01.com.teamsun.iscsi-gw:iscsi-igw [root@node1 tmp]# iscsiadm -m node -T iqn.2003-01.com.teamsun.iscsi-gw:iscsi-igw -p 192.168.42.110 -l Logging in to [iface: default, target: iqn.2003-01.com.teamsun.iscsi-gw:iscsi-igw, portal: 192.168.42.110,3260] (multiple) Login to [iface: default, target: iqn.2003-01.com.teamsun.iscsi-gw:iscsi-igw, portal: 192.168.42.110,3260] successful. /dev/sde is mapped,when i mkfs.xfs -f /dev/sde, an Error occur, [root@node1 tmp]# mkfs.xfs -f /dev/sde meta-data=/dev/sde isize=512 agcount=4, agsize=1966080 blks = sectsz=512 attr=2, projid32bit=1 = crc=1 finobt=0, sparse=0 data = bsize=4096 blocks=7864320, imaxpct=25 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 ftype=1 log =internal log bsize=4096 blocks=3840, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 existing superblock read failed: Input/output error mkfs.xfs: pwrite64 failed: Input/output error message in /var/log/messages: Oct 16 14:01:44 localhost kernel: Dev sde: unable to read RDB block 0 Oct 16 14:01:44 localhost kernel: sde: unable to read partition table Oct 16 14:02:17 localhost kernel: Dev sde: unable to read RDB block 0 Oct 16 14:02:17 localhost kernel: sde: unable to read partition table we use Luminous ceph. what cause this error? how debug it.any suggestion is appreciative. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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