ubuntu编译、配置、使用tgt

OS： ubuntu16.04

编译安装

1.下载代码

git clone https://github.com/fujita/tgt.git

2.安装依赖包

apt install devscripts debhelper librdmacm-dev libibverbs-dev xsltproc docbook-xsl libconfig-general-perl

3. 构建deb包

cd tgt/scripts
./build-pkg.sh deb

4. 安装

cd tgt/pkg
dpkg -i tgt_*.deb

配置

1. 创建

tgtadm --lld iscsi --mode target --op new --tid=1 --targetname iqn.2016-10.finals.com:vio1

2. 查看

root@ubuntu16:/home/finals/tgt/pkg# tgtadm --lld iscsi --mode target --op show
Target 1: iqn.2016-10.finals.com:vio1
    System information:
        Driver: iscsi
        State: ready
    I_T nexus information:
    LUN information:
        LUN: 0
            Type: controller
            SCSI ID: IET     00010000
            SCSI SN: beaf10
            Size: 0 MB, Block size: 1
            Online: Yes
            Removable media: No
            Prevent removal: No
            Readonly: No
            SWP: No
            Thin-provisioning: No
            Backing store type: null
            Backing store path: None
            Backing store flags: 
    Account information:
    ACL information:

3.添加LUN

tgtadm --lld iscsi --mode logicalunit --op new --tid 1 --lun 1 -b /home/iscsi-vio1


root@ubuntu16:/home# tgtadm --lld iscsi --mode target --op show
Target 1: iqn.2016-10.finals.com:vio1
    System information:
        Driver: iscsi
        State: ready
    I_T nexus information:
    LUN information:
        LUN: 0
            Type: controller
            SCSI ID: IET     00010000
            SCSI SN: beaf10
            Size: 0 MB, Block size: 1
            Online: Yes
            Removable media: No
            Prevent removal: No
            Readonly: No
            SWP: No
            Thin-provisioning: No
            Backing store type: null
            Backing store path: None
            Backing store flags: 
        LUN: 1
            Type: disk
            SCSI ID: IET     00010001
            SCSI SN: beaf11
            Size: 1074 MB, Block size: 512
            Online: Yes
            Removable media: No
            Prevent removal: No
            Readonly: No
            SWP: No
            Thin-provisioning: No
            Backing store type: rdwr
            Backing store path: /home/iscsi-vio1
            Backing store flags: 
    Account information:
    ACL information:

4.删除LUN

tgtadm --lld iscsi --mode logicalunit --op delete --tid 1 --lun 1

5.删除Target

tgtadm --lld iscsi --mode target --op delete --tid 1

4.ACL设置

允许任意initiator访问target

tgtadm --lld iscsi --mode target --op bind --tid 1 -I ALL

基于IP的访问控制

tgtadm --lld iscsi --mode target --op bind --tid 1 -I 192.168.14.135

基于子网的访问控制

tgtadm --lld iscsi --mode target --op bind --tid 1 -I 192.168.14.0/24

查看设置结果

root@ubuntu16:/home# tgtadm --lld iscsi --mode target --op show
Target 1: iqn.2016-10.finals.com:vio1
    System information:
        Driver: iscsi
        State: ready
    I_T nexus information:
    LUN information:
        LUN: 0
            Type: controller
            SCSI ID: IET     00010000
            SCSI SN: beaf10
            Size: 0 MB, Block size: 1
            Online: Yes
            Removable media: No
            Prevent removal: No
            Readonly: No
            SWP: No
            Thin-provisioning: No
            Backing store type: null
            Backing store path: None
            Backing store flags: 
        LUN: 1
            Type: disk
            SCSI ID: IET     00010001
            SCSI SN: beaf11
            Size: 1074 MB, Block size: 512
            Online: Yes
            Removable media: No
            Prevent removal: No
            Readonly: No
            SWP: No
            Thin-provisioning: No
            Backing store type: rdwr
            Backing store path: /home/iscsi-vio1
            Backing store flags: 
    Account information:
    ACL information:
        ALL
        192.168.14.135
        192.168.14.0/24

5.验证机制

1.创建用户

tgtadm --lld iscsi --mode account --op new --user ''finals'' --password ''123456''

1. 添加用户到已经存在的target设备

tgtadm --lld iscsi --mode account --op bind --tid 1 --user ''finals''

1. 在initiator中，用户名和密码信息需要添加到/etc/iscsi/iscsid.conf中

   • 对于discovery的验证机制(tgt尚未支持)： discovery.sendtargets.auth.{username,password}
   • 对于session的验证机制：node.session.auth.{username,password}

2. 查看

root@ubuntu16:/home# tgtadm --lld iscsi --mode target --op show
Target 1: iqn.2016-10.finals.com:vio1
    System information:
        Driver: iscsi
        State: ready
    I_T nexus information:
    LUN information:
        LUN: 0
            Type: controller
            SCSI ID: IET     00010000
            SCSI SN: beaf10
            Size: 0 MB, Block size: 1
            Online: Yes
            Removable media: No
            Prevent removal: No
            Readonly: No
            SWP: No
            Thin-provisioning: No
            Backing store type: null
            Backing store path: None
            Backing store flags: 
        LUN: 1
            Type: disk
            SCSI ID: IET     00010001
            SCSI SN: beaf11
            Size: 1074 MB, Block size: 512
            Online: Yes
            Removable media: No
            Prevent removal: No
            Readonly: No
            SWP: No
            Thin-provisioning: No
            Backing store type: rdwr
            Backing store path: /home/iscsi-vio1
            Backing store flags: 
    Account information:
        finals
    ACL information:
        ALL
        192.168.14.135
        192.168.14.0/24

使用

1.发现Target

iscsiadm -m discovery -t sendtargets -p 192.168.14.135

显示已发现的target：
iscsiadm -m node

2.连接Target

iscsiadm -m node -p 192.168.14.135 -T iqn.2016-10.finals.com:storage.vio1 --login

3.查看新增磁盘

root@ubuntu16:/home# lsscsi
[1:0:0:0]    cd/dvd  NECVMWar VMware IDE CDR10 1.00  /dev/sr0 
[2:0:0:0]    disk    VMware   Virtual disk     1.0   /dev/sda 
[2:0:1:0]    disk    VMware   Virtual disk     1.0   /dev/sdb 
[3:0:0:0]    storage IET      Controller       0001  -        
[3:0:0:1]    disk    IET      VIRTUAL-DISK     0001  /dev/sdc 

4.断开Target

iscsiadm -m node -p 192.168.14.135 -T iqn.2016-10.finals.com:storage.vio1 --logout