CentOS7/RHEL7:如何创建并挂载SCSI 共享磁盘

在centos7 系统下我们如何来创建并挂载SCSI 共享磁盘呢?本文将会讲述通过两个虚拟机作为scsi的服务器端和客户端来配置创建并挂载scsi共享磁盘。

实验设备:

用虚拟机虚拟两个 centos6.3 -64bit 系统,并配置好yum

ip设置:
scsi服务端:10.1.1.222
scsi客户端(挂载端):10.1.1.1

1、在服务端安装软件并配置好共享的磁盘,首先在虚拟机中新加入一块硬盘,大小随意。(这里添加100G)

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[root@localhost ~]# fdisk -l
 Disk /dev/sda: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0005bb6c
 
   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          26      204800   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2              26         281     2048000   82  Linux swap / Solaris
Partition 2 does not end on cylinder boundary.
/dev/sda3             281        2611    18717696   83  Linux
 
Disk /dev/sdb: 107.4 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00077087
 
   Device Boot      Start         End      Blocks   Id  System

2、安装scsi服务端软件

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yum install scsi-target-utils -y

共享磁盘(在配置文件中加入以下代码即可)

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vim /etc/tgt/targets.conf
    <target iqn.2008-09.com.example:server.target1>
        backing-store /dev/sdb
    </target>

启动服务

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service tgtd restart

关闭防火墙和selinux

3、在客户端安装客户端软件,并设置挂载

安装客户端软件

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yum install iscsi-initiator-utils -y

查看是否有共享磁盘

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iscsiadm --mode discoverydb --type sendtargets --portal 10.1.1.222 --discover

出现以下则表示有共享磁盘 10.1.1.222:3260,1 iqn.2008-09.com.example:server.target1

挂载磁盘

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iscsiadm --mode node --targetname iqn.2008-09.com.example:server.target1 --portal 10.1.1.222:3260 --login

注意:中间2008-09这段是填写上面查询出来的那个磁盘名

成功挂载后有以下提示

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[root@localhost ~]#  iscsiadm --mode node --targetname iqn.2008-09.com.example:server.target1 --portal 10.1.1.222:3260 --login
Logging in to [iface: default, target: iqn.2008-09.com.example:server.target1, portal: 10.1.1.222,3260] (multiple)
Login to [iface: default, target: iqn.2008-09.com.example:server.target1, portal: 10.1.1.222,3260] successful.

查看是否挂载成功
[root@localhost ~]# fdisk -l

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 Disk /dev/sda: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00036380
 
   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          26      204800   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2              26         281     2048000   82  Linux swap / Solaris
Partition 2 does not end on cylinder boundary.
/dev/sda3             281        2611    18717696   83  Linux
 
Disk /dev/sdb: 107.4 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00077087
 
   Device Boot      Start         End      Blocks   Id  System

成功挂载100G硬盘。

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