Configure iSCSI Target(tgt)
2016/11/28 |
Configure Storage Server with iSCSI.
This is the example of configuring iSCSI Target with scsi-target-utils.
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[1] | Install scsi-target-utils. |
[root@dlp ~]# dnf -y install scsi-target-utils
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[2] | Configure iSCSI Target. For example, create a disk image under the [/var/lib/iscsi_disks] directory and set it as a shared disk. |
# create a disk image [root@dlp ~]# mkdir /var/lib/iscsi_disks [root@dlp ~]# dd if=/dev/zero of=/var/lib/iscsi_disks/disk01.img count=0 bs=1 seek=10G
[root@dlp ~]#
vi /etc/tgt/targets.conf # add follows to the end # if you set some devices, add # naming rule : [ iqn.yaer-month.domain:any name ] <target iqn.2016-11.world.srv:target01> # provided devicce as a iSCSI target backing-store /var/lib/iscsi_disks/disk01.img # iSCSI Initiator's IP address you allow to connect initiator-address 10.0.0.31 # authentication info ( set anyone you like for "username", "password" ) incominguser username password </target> |
[3] | If SELinux is enabled, change SELinux Context. |
[root@dlp ~]#
[root@dlp ~]# dnf -y install policycoreutils-python-utils
chcon -R -t tgtd_var_lib_t /var/lib/iscsi_disks [root@dlp ~]# semanage fcontext -a -t tgtd_var_lib_t /var/lib/iscsi_disks |
[4] | If Firewalld is running, allow iSCSI Target service. |
[root@dlp ~]# firewall-cmd --add-service=iscsi-target --permanent success [root@dlp ~]# firewall-cmd --reload success |
[5] | Start tgtd and verify status. |
# show status [root@dlp ~]# tgtadm --mode target --op show Target 1: iqn.2016-11.world.srv:target01 System information: Driver: iscsi State: ready I_T nexus information: LUN information: LUN: 0 Type: controller SCSI ID: IET 00010000 SCSI SN: beaf10 Size: 0 MB, Block size: 1 Online: Yes Removable media: No Prevent removal: No Readonly: No SWP: No Thin-provisioning: No Backing store type: null Backing store path: None Backing store flags: LUN: 1 Type: disk SCSI ID: IET 00010001 SCSI SN: beaf11 Size: 10737 MB, Block size: 512 Online: Yes Removable media: No Prevent removal: No Readonly: No SWP: No Thin-provisioning: No Backing store type: rdwr Backing store path: /var/lib/iscsi_disks/disk01.img Backing store flags: Account information: username ACL information: 10.0.0.31 |