配置ISCSI服务器

Posted 2020-07-22 随风☆飘扬

一.在linux下安装启动iscsi target

1.安装启动iscsi服务

[[email protected] ~]# yum -y install targetcli.noarch

2.建立一个目录设置为iscsi设备

[[email protected] ~]# mkdir /iscsi_disks

3.设置target

[[email protected] ~]# 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

[[email protected] ~]# 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> [[email protected] ~]# firewall-cmd --permanent --add-service=iscsi [[email protected] ~]# firewall-cmd --reload

5.启动服务

[[email protected] ~]# systemctl enable target.service Created symlink from /etc/systemd/system/multi-user.target.wants/target.service to /usr/lib/systemd/system/target.service. [[email protected] ~]# systemctl start target.service

6.查看端口

[[email protected] ~]# 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

[[email protected] ~]# yum install iscsi-initiator-utils

2.修改配置文件

[[email protected] ~]# vim /etc/iscsi/initiatorname.iscsi  InitiatorName=iqn.2016-06.wjb.com:www.server.com [[email protected] ~]# 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

[[email protected] ~]# systemctl start iscsid [[email protected] ~]# systemctl enable iscsid

4.发现target

[[email protected] ~]# iscsiadm -m discovery -t sendtargets -p 192.168.1.50

5.查看状态

[[email protected] ~]# iscsiadm -m node -o show

6.登录target建立连接

[[email protected] ~]# 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

[[email protected] ~]# 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

[[email protected] ~]# 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   [[email protected] ~]# parted --script /dev/sdb "mklabel msdos" [[email protected] ~]# parted --script /dev/sdb "mkpart primary 0% 100%" [[email protected] ~]# 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 [[email protected] ~]# mount /dev/sdb1 /mnt/ [[email protected] ~]# 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