linux配置ISCSI服务器的方法
(编辑：jimmy 日期: 2024/11/16 浏览：3 次 )
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
[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
[root@wjb10000 ~]# vim /etc/firewalld/services/iscsi.xml <"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
[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
[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
[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
[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
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