Create and mount a shared scsi disk on centos 7

Create and mount a shared scsi disk on centos 7

Lab device:

Use a virtual machine to virtualize two centos6.3-64bit systems and configure yum

IP settings:

Scsi server: 10.1.1.222

Scsi client (Mount end): 10.1.1.1

Lab started:

1. Install software on the server and configure the shared disk. First, add a new hard disk to the virtual machine. (Add 100 GB here)

[root @localhost ~] #fdisk-l Disk/dev/sda:21.5GB,21474836480bytes 255heads,63sectors/track,2610cylinders Units=cylindersof16065*512=8225280bytes Sectorsize(logical/physical):512bytes/512bytes I/Osize(minimum/optimal):512bytes/512bytes Diskidentifier:0x0005bb6c DeviceBootStart End BlocksIdSystem /dev/sda1*12620480083Linux Partition1doesnot end oncylinderboundary. /dev/sda226281204800082Linuxswap/Solaris Partition2doesnot end oncylinderboundary. /dev/sda328126111871769683Linux Disk/dev/sdb:107.4GB,107374182400bytes 255heads,63sectors/track,13054cylinders Units=cylindersof16065*512=8225280bytes Sectorsize(logical/physical):512bytes/512bytes I/Osize(minimum/optimal):512bytes/512bytes Diskidentifier:0x00077087 DeviceBootStart End BlocksIdSystem

2. Install the scsi server software

yuminstallscsi-target-utils-y

Shared disk (Add the following code to the configuration file)

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

Start the service

servicetgtdrestart

Disable firewall and selinux

3. Install the client software on the client and set the mounting

Install client software

yuminstalliscsi-initiator-utils-y

Check whether a shared disk exists.

iscsiadm--modediscoverydb--typesendtargets--portal10.1.1.222--discover A shared disk 10.1.1.222: 3260, 1iqn.2008-09.com. example: server.tar get1 appears.

Attach Disk

iscsiadm--modenode--targetnameiqn.2008-09.com.example:server.target1--portal10.1.1.222:3260--login

Note: In the middle of-09, enter the disk name queried above.

The following prompt is displayed after the mounting is successful:

[root @localhost ~] #iscsiadm--modenode--targetnameiqn.2008-09.com.example:server.target1--portal10.1.1.222:3260--login Logging in to[iface: default ,target:iqn.2008-09.com.example:server.target1,portal:10.1.1.222,3260](multiple) Loginto[iface: default ,target:iqn.2008-09.com.example:server.target1,portal:10.1.1.222,3260]successful.

Check whether the following mounting is successful

[root @localhost ~] #fdisk-l Disk/dev/sda:21.5GB,21474836480bytes 255heads,63sectors/track,2610cylinders Units=cylindersof16065*512=8225280bytes Sectorsize(logical/physical):512bytes/512bytes I/Osize(minimum/optimal):512bytes/512bytes Diskidentifier:0x00036380 DeviceBootStart End BlocksIdSystem /dev/sda1*12620480083Linux Partition1doesnot end oncylinderboundary. /dev/sda226281204800082Linuxswap/Solaris Partition2doesnot end oncylinderboundary. /dev/sda328126111871769683Linux Disk/dev/sdb:107.4GB,107374182400bytes 255heads,63sectors/track,13054cylinders Units=cylindersof16065*512=8225280bytes Sectorsize(logical/physical):512bytes/512bytes I/Osize(minimum/optimal):512bytes/512bytes Diskidentifier:0x00077087 DeviceBootStart End BlocksIdSystem

The GB hard disk is mounted successfully.

Lab ended