iscsi

Posted 2021-03-17 dinghailong128

 创建RAID10磁盘阵列

[root@localhost ~]# mdadm -Cv /dev/md0 -n 4 -l 10 /dev/sd[b-e]

[root@localhost ~]# mdadm -D /dev/md0

 

 

 配置iSCSI服务端

[root@localhost ~]# yum install targetd targetcli

[root@localhost ~]# systemctl restart iscsid

[root@localhost ~]# systemctl enable iscsid

[root@localhost ~]# targetcli

/> ls

o- / ............................................................................ [...]

  o- backstores ................................................................. [...]

  | o- block ..................................................... [Storage Objects: 0]

  | o- fileio .................................................... [Storage Objects: 0]

  | o- pscsi ..................................................... [Storage Objects: 0]

  | o- ramdisk ................................................... [Storage Objects: 0]

  o- iscsi ............................................................... [Targets: 0]

  o- loopback ............................................................ [Targets: 0]

/> cd /backstores/block

/backstores/block> create disk0 /dev/md0

Created block storage object disk0 using /dev/md0.

/> cd iscsi

/iscsi> create

Created target iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.72b4c8640c0c.

Created TPG 1.

/iscsi> cd iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.72b4c8640c0c

/iscsi/iqn.20....72b4c8640c0c> ls

o- iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.72b4c8640c0c .............. [TPGs: 1]

  o- tpg1 ...................................................... [no-gen-acls, no-auth]

    o- acls ................................................................. [ACLs: 0]

    o- luns ................................................................. [LUNs: 0]

    o- portals ........................................................... [Portals: 0]

/iscsi/iqn.20....72b4c8640c0c> cd tpg1/luns

/iscsi/iqn.20...c0c/tpg1/luns> create /backstores/block/disk0

Created LUN 0.

/iscsi/iqn.20...c0c/tpg1/luns> cd ..

/iscsi/iqn.20...c8640c0c/tpg1> ls

o- tpg1 ........................................................ [no-gen-acls, no-auth]

  o- acls ................................................................... [ACLs: 0]

  o- luns ................................................................... [LUNs: 1]

  | o- lun0 .................................................. [block/disk0 (/dev/md0)]

  o- portals ............................................................. [Portals: 0]

/iscsi/iqn.20...c8640c0c/tpg1> cd portals

/iscsi/iqn.20.../tpg1/portals> create 192.168.10.10

Using default IP port 3260

Created network portal 192.168.10.10:3260.

/iscsi/iqn.20.../tpg1/portals> cd ..

/iscsi/iqn.20...c8640c0c/tpg1> cd acls

/iscsi/iqn.20...c0c/tpg1/acls> create iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.72b4c8640c0c:client

Created Node ACL for iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.72b4c8640c0c:client

Created mapped LUN 0.

/iscsi/iqn.20...c0c/tpg1/acls> exit

Global pref auto_save_on_exit=true

Last 10 configs saved in /etc/target/backup.

Configuration saved to /etc/target/saveconfig.json

 

[root@localhost ~]# iptables -F

 

 

配置Linux客户端

[root@localhost ~]# ls -l /dev/sd*

brw-rw----. 1 root disk 8, 0 8月  13 2019 /dev/sda

brw-rw----. 1 root disk 8, 1 8月  13 2019 /dev/sda1

brw-rw----. 1 root disk 8, 2 8月  13 2019 /dev/sda2

 

[root@localhost ~]# vim /etc/iscsi/initiatorname.iscsi

InitiatorName=iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.72b4c8640c0c:client

[root@localhost ~]# systemctl restart iscsid

[root@localhost ~]# systemctl enable iscsid

 

[root@localhost ~]# iscsiadm -m discovery -t st -p 192.168.10.10

192.168.10.10:3260,1 iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.72b4c8640c0c

[root@localhost ~]# iscsiadm -m node -T iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.72b4c8640c0c -p 192.168.10.10 --login

 

[root@localhost ~]# ls -l /dev/sd*

brw-rw----. 1 root disk 8,  0 8月  13 2019 /dev/sda

brw-rw----. 1 root disk 8,  1 8月  13 2019 /dev/sda1

brw-rw----. 1 root disk 8,  2 8月  13 2019 /dev/sda2

brw-rw----. 1 root disk 8, 16 8月  12 17:08 /dev/sdb

 

[root@localhost ~]# iscsiadm -m node -T iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.72b4c8640c0c -u

 

[root@localhost ~]# ls -l /dev/sd*

brw-rw----. 1 root disk 8, 0 8月  13 2019 /dev/sda

brw-rw----. 1 root disk 8, 1 8月  13 2019 /dev/sda1

brw-rw----. 1 root disk 8, 2 8月  13 2019 /dev/sda2