HI tao, I would make something like this :
https://support.zadarastorage.com/hc/en-us/articles/213024386-How-To-setup-Multiple-iSCSI-sessions-and-MultiPath-on-your-Linux-Cloud-Server regards, I 2016-10-21 11:33 GMT+02:00 tao chang <changtao...@gmail.com>: > HI All, > > I try to configure multipath by export two iscsi gateway on two host > with same one rbd volume, The steps is below: > > one host1: > 1) mapped a rbd volume as a local blockdevice > rbd map fastpool/vdisk > > as /dev/rbd0 > > 2) export /dev/rbd0 as iscsi taget: > [root@zk23-03 ~]# targetcli / ls > o- / ............................................................ > ............................................................. > [...] > o- backstores > ............................................................ > .................................................. > [...] > | o- block ............................................................ > ...................................... > [Storage Objects: 1] > | | o- fastpool_vdisk > ................................................................ > [/dev/rbd0 (195.3GiB) write-thru activated] > | o- fileio ............................................................ > ..................................... > [Storage Objects: 0] > | o- pscsi ............................................................ > ...................................... > [Storage Objects: 0] > | o- ramdisk .............................. > .................................................................. > [Storage Objects: 0] > o- iscsi ............................................................ > ................................................ > [Targets: 1] > | o- iqn.2016-05.com.zettakit.www:fastpool.vdisk > ....................................................................... > [TPGs: 1] > | o- tpg1 ............................................................ > ................................... > [no-gen-acls, no-auth] > | o- acls > ............................................................ > .............................................. > [ACLs: 1] > | | o- iqn.2016-05.com.zettakit:node2202.local1 > ............................................................. [Mapped > LUNs: 1] > | | o- mapped_lun0 > ........................................................................ > [lun0 block/fastpool_vdisk (rw)] > | o- luns > ............................................................ > .............................................. > [LUNs: 1] > | | o- lun0 > ............................................................ > ................... > [block/fastpool_vdisk (/dev/rbd0)] > | o- portals > ............................................................ > ........................................ > [Portals: 0] > o- loopback ............................................................ > ............................................. > [Targets: 0] > o- srpt ............................................................ > ................................................. > [Targets: 0] > > > > > one host2, do the same: > one host1: > 1) mapped a rbd volume as a local blockdevice > rbd map fastpool/vdisk > > as /dev/rbd0 > > 2) export /dev/rbd0 as iscsi taget: > > [root@zk23-01 ~]# targetcli / ls > o- / ............................................................ > ............................................................. > [...] > o- backstores > ............................................................ > .................................................. > [...] > | o- block ............................................................ > ...................................... > [Storage Objects: 1] > | | o- fastpool_vdisk > ................................................................ > [/dev/rbd0 (195.3GiB) write-thru activated] > | o- fileio ............................................................ > ..................................... > [Storage Objects: 0] > | o- pscsi ............................................................ > ...................................... > [Storage Objects: 0] > | o- ramdisk .............................. > .................................................................. > [Storage Objects: 0] > o- iscsi ............................................................ > ................................................ > [Targets: 1] > | o- iqn.2016-05.com.zettakit.www:fastpool.vdisk > ....................................................................... > [TPGs: 1] > | o- tpg1 ............................................................ > ................................... > [no-gen-acls, no-auth] > | o- acls > ............................................................ > .............................................. > [ACLs: 1] > | | o- iqn.2016-05.com.zettakit:node2202.local1 > ............................................................. [Mapped > LUNs: 1] > | | o- mapped_lun0 > ........................................................................ > [lun0 block/fastpool_vdisk (rw)] > | o- luns > ............................................................ > .............................................. > [LUNs: 1] > | | o- lun0 > ............................................................ > ................... > [block/fastpool_vdisk (/dev/rbd0)] > | o- portals > ............................................................ > ........................................ > [Portals: 0] > o- loopback ............................................................ > ............................................. > [Targets: 0] > o- srpt ............................................................ > ................................................. > [Targets: 0] > > > After building connection to the two targets by iscsi-initiator, it > will have two iscsi dev: /dev/sdm and /dev/sdn, > > but the multipath doesn't recognize it was same device. > > > By leaning multipath , I know it will use scsi_id to recognize as the > same device, how to use targetcli to export a rbd volume with the same > scsi_id ? > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- ############################################################################ Iban Cabrillo Bartolome Instituto de Fisica de Cantabria (IFCA) Santander, Spain Tel: +34942200969 PGP PUBLIC KEY: http://pgp.mit.edu/pks/lookup?op=get&search=0xD9DF0B3D6C8C08AC ############################################################################ Bertrand Russell:*"El problema con el mundo es que los estúpidos están seguros de todo y los inteligentes están **llenos de dudas*"
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