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.
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