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手把手教你Linux环境下配置iSCSI服务器的详细步骤与技巧

一.在linux下安装启动iscsi target

1.安装启动iscsi服务
[root@wjb10000 ~]# yum -y install targetcli.noarch

2.建立一个目录设置为iscsi设备
[root@wjb10000 ~]# mkdir /iscsi_disks

3.设置target

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 [root@wjb10000 ~]# targetcli Warning: Could not load preferences file /root/.targetcli/prefs.bin. targetcli shell version 2.1.fb41 Copyright 2011-2013 by Datera, Inc and others. For help on commands, type 'help'.   /> cd backstores/fileio /backstores/fileio> create disk01 /iscsi_disks/disk01.img 20G Created fileio disk01 with size 21474836480 /backstores/fileio> cd /iscsi /iscsi> create iqn.2016-06.wjb.com:storage.target0 Created target iqn.2016-06.wjb.com:storage.target0. Created TPG 1. Global pref auto_add_default_portal=true Created default portal listening on all IPs (0.0.0.0), port 3260. /iscsi> cd iqn.2016-06.wjb.com:storage.target0/tpg1/portals/ /iscsi/iqn.20.../tpg1/portals> create 192.168.1.50 Using default IP port 3260 Could not create NetworkPortal in configFS /iscsi/iqn.20.../tpg1/portals> delete 0.0.0.0 3260 Deleted network portal 0.0.0.0:3260 /iscsi/iqn.20.../tpg1/portals> create 192.168.1.50 Using default IP port 3260 Created network portal 192.168.1.50:3260. /iscsi/iqn.20.../tpg1/portals> cd ../luns /iscsi/iqn.20...et0/tpg1/luns> create /backstores/fileio/disk01 Created LUN 0. /iscsi/iqn.20...et0/tpg1/luns> cd ../acls /iscsi/iqn.20...et0/tpg1/acls> create iqn.2016-06.wjb.com:www.server.com Created Node ACL for iqn.2016-06.wjb.com:www.server.com Created mapped LUN 0. /iscsi/iqn.20...et0/tpg1/acls> cd iqn.2016-06.wjb.com:www.server.com/ /iscsi/iqn.20...ww.server.com> set auth userid=username Parameter userid is now 'username'. /iscsi/iqn.20...ww.server.com> set auth password=password Parameter password is now 'password'. /iscsi/iqn.20...ww.server.com> exit Global pref auto_save_on_exit=true Last 10 configs saved in /etc/target/backup. Configuration saved to /etc/target/saveconfig.json

4.设置防火墙

1 2 3 4 5 6 7 8 9 [root@wjb10000 ~]# vim /etc/firewalld/services/iscsi.xml <? xml version = "1.0" encoding = "utf-8" ?> < service > < short >ISCSI</ short > < description >ISCSI protocal</ description > < port protocal = "tcp" port = "3260" > </ service > [root@wjb10000 ~]# firewall-cmd --permanent --add-service=iscsi [root@wjb10000 ~]# firewall-cmd --reload

5.启动服务

1 2 3 [root@wjb10000 ~]# systemctl enable target.service Created symlink from /etc/systemd/system/multi-user.target.wants/target.service to /usr/lib/systemd/system/target.service. [root@wjb10000 ~]# systemctl start target.service

6.查看端口

1 2 [root@wjb10000 ~]# netstat -lnp | grep 3260 tcp    0   0 192.168.1.50:3260    0.0.0.0:*        LISTEN   -

二.在linux下安装启动iscsi initiator

1.安装 iscsi-initiator-utils服务
[root@wjb10000 ~]# yum install iscsi-initiator-utils

2.修改配置文件

1 2 3 4 5 6 [root@wjb10000 ~]# vim /etc/iscsi/initiatorname.iscsi InitiatorName=iqn.2016-06.wjb.com:www.server.com [root@wjb10000 ~]# vim /etc/iscsi/iscsid.conf #node.session.auth.authmethod = CHAP #node.session.auth.username = username #node.session.auth.password = password      //去掉注释

3.启动服务

[root@wjb10000 ~]# systemctl start iscsid
[root@wjb10000 ~]# systemctl enable iscsid

4.发现target

[root@wjb10000 ~]# iscsiadm -m discovery -t sendtargets -p 192.168.1.50

5.查看状态

[root@wjb10000 ~]# iscsiadm -m node -o show

6.登录target建立连接

[root@wjb10000 ~]# iscsiadm -m node –login
Logging in to [iface: default, target: iqn.2016-06.wjb.com:storage.target0, portal: 192.168.1.50,3260] (multiple)
Login to [iface: default, target: iqn.2016-06.wjb.com:storage.target0, portal: 192.168.1.50,3260] successful.

7.查看连接情况

[root@wjb10000 ~]# iscsiadm -m session -o show
tcp: [1] 192.168.1.50:3260,1 iqn.2016-06.wjb.com:storage.target0 (non-flash)

8.磁盘操作

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 [root@wjb10000 ~]# fdisk -l   磁盘 /dev/sda:107.4 GB, 107374182400 字节,209715200 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理):512 字节 / 512 字节 I/O 大小(最小/最佳):512 字节 / 512 字节 磁盘标签类型:dos 磁盘标识符:0x000b2ba1      设备 Boot   Start     End   Blocks  Id System /dev/sda1  *    2048   1026047   512000  83 Linux /dev/sda2     1026048  62466047  30720000  83 Linux /dev/sda3    62466048  103426047  20480000  83 Linux /dev/sda4    103426048  209715199  53144576  5 Extended /dev/sda5    103428096  144388095  20480000  83 Linux /dev/sda6    144390144  152582143   4096000  82 Linux swap / Solaris /dev/sda7    152584192  209715199  28565504  83 Linux   磁盘 /dev/sdb:21.5 GB, 21474836480 字节,41943040 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理):512 字节 / 512 字节 I/O 大小(最小/最佳):512 字节 / 8388608 字节   [root@wjb10000 ~]# parted --script /dev/sdb "mklabel msdos" [root@wjb10000 ~]# parted --script /dev/sdb "mkpart primary 0% 100%" [root@wjb10000 ~]# mkfs.xfs -i size=1024 -s size=4096 /dev/sdb1 meta-data=/dev/sdb1       isize=1024  agcount=4, agsize=1310208 blks       =            sectsz=4096 attr=2, projid32bit=1       =            crc=0    finobt=0 data   =            bsize=4096  blocks=5240832, imaxpct=25       =            sunit=0   swidth=0 blks naming  =version 2       bsize=4096  ascii-ci=0 ftype=0 log   =internal log      bsize=4096  blocks=2560, version=2       =            sectsz=4096 sunit=1 blks, lazy-count=1 realtime =none          extsz=4096  blocks=0, rtextents=0 [root@wjb10000 ~]# mount /dev/sdb1 /mnt/ [root@wjb10000 ~]# df -hT 文件系统    类型   容量 已用 可用 已用% 挂载点 /dev/sda3   xfs    20G  68M  20G  1% / devtmpfs    devtmpfs 904M   0 904M  0% /dev tmpfs     tmpfs   913M   0 913M  0% /dev/shm tmpfs     tmpfs   913M 8.7M 904M  1% /run tmpfs     tmpfs   913M   0 913M  0% /sys/fs/cgroup /dev/sda5   xfs    20G 1.5G  19G  8% /usr /dev/sda7   xfs    28G  33M  28G  1% /home /dev/sda2   xfs    30G 694M  29G  3% /var /dev/sda1   xfs    497M 128M 370M  26% /boot tmpfs     tmpfs   183M   0 183M  0% /run/user/0 /dev/sdb1   xfs    20G  33M  20G  1% /mnt

以上就是小编为大家带来的linux配置ISCSI服务器的方法全部内容了

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