iscsi target 配置及使用

最新推荐文章于 2024-01-03 11:06:26 发布

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最新推荐文章于 2024-01-03 11:06:26 发布

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原文链接：https://my.oschina.net/u/1791060/blog/663139

本文详细介绍了在Linux环境下安装iscsi-target、创建并配置iSCSI目标及客户端的过程，包括安装软件包、创建逻辑卷、设置ACL、挂载及验证iSCSI服务。教程覆盖了从初始化到实现iSCSI网络存储的完整步骤。

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2019独角兽企业重金招聘Python工程师标准>>>

####环境：

192.168.10.91 target v1.0.24

192.168.10.92 initiator

192.168.10.93 initiator

####安装iscsi target

安装软件包

# yum install scsi-target-utils -y # service tgtd start && chkconfig tgtd on

创建target

# tgtadm --lld iscsi --mode target --op new --tid 1 --targetname t1

# tgtadm --lld iscsi --mode target --op new --tid 2 --targetname t2

为2个target分配空间,测试使用dd创建的文件会报错，用block设备就好了

# lvcreate -L 200M -n target-t1 vg_ops1

# lvcreate -L 300M -n target-t2 vg_ops1

# lvcreate -L 400M -n target-t1-2 vg_ops1

# tgtadm --lld iscsi --mode logicalunit --op new --tid 1 --lun 1 --backing-store /dev/mapper/vg_ops1-target--t1

# tgtadm --lld iscsi --mode logicalunit --op new --tid 1 --lun 2 --backing-store /dev/mapper/vg_ops1-target--t1--2

# tgtadm --lld iscsi --mode logicalunit --op new --tid 2 --lun 1 --backing-store /dev/mapper/vg_ops1-target--t2

(可选)创建用户密码并为target添加用户,user1使用target 1，user2使用target 2

# tgtadm --lld iscsi --mode account --op new --user user1 --password password1

# tgtadm --lld iscsi --mode account --op new --user user2 --password password2

# tgtadm --lld iscsi --mode account --op bind --tid 1 --user user1

# tgtadm --lld iscsi --mode account --op bind --tid 2 --user user2

为target创建分配acl，要都可用可把ip替换为ALL

# tgtadm --lld iscsi --mode target --op bind --tid 1 --initiator-address 192.168.10.92

# tgtadm --lld iscsi --mode target --op bind --tid 2 --initiator-address 192.168.10.93

查看target状态

# tgtadm --lld iscsi --mode target --op show

Target 1: t1
    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
            Backing store type: null
            Backing store path: None
            Backing store flags: 
        LUN: 1
            Type: disk
            SCSI ID: IET     00010001
            SCSI SN: beaf11
            Size: 210 MB, Block size: 512
            Online: Yes
            Removable media: No
            Prevent removal: No
            Readonly: No
            Backing store type: rdwr
            Backing store path: /dev/mapper/vg_ops1-target--t1
            Backing store flags: 
        LUN: 2
            Type: disk
            SCSI ID: IET     00010002
            SCSI SN: beaf12
            Size: 419 MB, Block size: 512
            Online: Yes
            Removable media: No
            Prevent removal: No
            Readonly: No
            Backing store type: rdwr
            Backing store path: /dev/mapper/vg_ops1-target--t1--2
            Backing store flags: 
    Account information:
        user1
    ACL information:
        192.168.10.92
Target 2: t2
    System information:
        Driver: iscsi
        State: ready
    I_T nexus information:
    LUN information:
        LUN: 0
            Type: controller
            SCSI ID: IET     00020000
            SCSI SN: beaf20
            Size: 0 MB, Block size: 1
            Online: Yes
            Removable media: No
            Prevent removal: No
            Readonly: No
            Backing store type: null
            Backing store path: None
            Backing store flags: 
        LUN: 1
            Type: disk
            SCSI ID: IET     00020001
            SCSI SN: beaf21
            Size: 315 MB, Block size: 512
            Online: Yes
            Removable media: No
            Prevent removal: No
            Readonly: No
            Backing store type: rdwr
            Backing store path: /dev/mapper/vg_ops1-target--t2
            Backing store flags: 
    Account information:
        user2
    ACL information:
        192.168.10.93

####挂载iscsi

安装iscsi-initiator

# yum install iscsi-initiator-utils -y

查看iscsi target

[root@ops2 ~]# iscsiadm -m discovery -t sendtargets -p 192.168.10.91:3260
192.168.10.91:3260,1 t1

[root@ops3 ~]# iscsiadm -m discovery -t sendtargets -p 192.168.10.91:3260
192.168.10.91:3260,1 t2

登陆iscsi target

192.168.10.92:

# iscsiadm -m node -T t1 -p 192.168.10.91:3260 -o update -n node.startup -v automatic #开机启动

# iscsiadm -m node -T t1 -p 192.168.10.91:3260 -o update -n node.session.auth.authmethod -v CHAP

# iscsiadm -m node -T t1 -p 192.168.10.91:3260 -o update -n node.session.auth.username -v user1

# iscsiadm -m node -T t1 -p 192.168.10.91:3260 -o update -n node.session.auth.password -v password1

# iscsiadm -m node -T t1 -p 192.168.10.91:3260 -l

Logging in to [iface: default, target: t1, portal: 192.168.10.91,3260] (multiple)
Login to [iface: default, target: t1, portal: 192.168.10.91,3260] successful.

192.168.10.93:

# iscsiadm -m node -T t2 -p 192.168.10.91:3260 -o update -n node.session.auth.username -v user2

# iscsiadm -m node -T t2 -p 192.168.10.91:3260 -o update -n node.session.auth.password -v password2

# iscsiadm -m node -T t2 -p 192.168.10.91:3260 -l

Logging in to [iface: default, target: t2, portal: 192.168.10.91,3260] (multiple)
Login to [iface: default, target: t2, portal: 192.168.10.91,3260] successful.

查询磁盘iscsi信息,查找硬盘是哪个机器上挂过来的

# udevadm info --query=all --name=/dev/sdc

P: /devices/platform/host9/session7/target9:0:0/9:0:0:2/block/sdc
N: sdc
W: 45
S: block/8:32
S: disk/by-id/scsi-1IET_00010002
S: disk/by-path/ip-192.168.10.91:3260-iscsi-t1-lun-2
E: UDEV_LOG=3
E: DEVPATH=/devices/platform/host9/session7/target9:0:0/9:0:0:2/block/sdc
E: MAJOR=8
E: MINOR=32
E: DEVNAME=/dev/sdc
E: DEVTYPE=disk
E: SUBSYSTEM=block
E: ID_SCSI=1
E: ID_VENDOR=IET
E: ID_VENDOR_ENC=IET\x20\x20\x20\x20\x20
E: ID_MODEL=VIRTUAL-DISK
E: ID_MODEL_ENC=VIRTUAL-DISK
E: ID_REVISION=0001
E: ID_TYPE=disk
E: ID_SERIAL_RAW=1IET     00010002
E: ID_SERIAL=1IET_00010002
E: ID_SERIAL_SHORT=IET_00010002
E: ID_SCSI_SERIAL=beaf12
E: ID_BUS=scsi
E: ID_PATH=ip-192.168.10.91:3260-iscsi-t1-lun-2
E: LVM_SBIN_PATH=/sbin
E: DEVLINKS=/dev/block/8:32 /dev/disk/by-id/scsi-1IET_00010002 /dev/disk/by-path/ip-192.168.10.91:3260-iscsi-t1-lun-2

转载于:https://my.oschina.net/u/1791060/blog/663139