[system] targetcli

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참고 페이지:https://wiki.rvijay.in/index.php/Configuring_iSCSI_target_using_targetcli

https://www.rootusers.com/how-to-configure-an-iscsi-target-and-initiator-in-linux/

http://atodorov.org/blog/2015/04/07/how-to-configure-iscsi-target-on-red-hat-enterprise-linux-7/

 

iscsi-server

targetcli 설치

[root@centos74 ~]# yum install -y targetcli

 

targetcli 실행

[root@centos74 ~]# systemctl start target

 

[root@centos74 ~]# targetcli
Warning: Could not load preferences file /root/.targetcli/prefs.bin.
targetcli shell version 2.1.fb46
Copyright 2011-2013 by Datera, Inc and others.
For help on commands, type 'help'.

/>

 

몇가지가 더 있지만 자주 사용하는것 위주로 작성 하였습니다.

fileio: file 을 지정 ex) disk.img

block: block Device 를 지정 ex) lvm 및 /dev/sdb1

fileio Test 진행

[root@centos74 ~]# mkdir /images
[root@centos74 ~]# targetcli
/> backstores/fileio create disk1 /images/disk1.img 10G
Created fileio disk1 with size 10737418240
/>

/> 위치에서 생성을 해야 합니다. 위치 이동은 cd 명령어를 통하여 이동하실수 있습니다.

/> iscsi/ create iqn.2017-12.com.example:target1
Created target iqn.2017-12.com.example:target1.
Created TPG 1.
Global pref auto_add_default_portal=true
Created default portal listening on all IPs (0.0.0.0), port 3260.
/> cd iscsi/iqn.2017-12.com.example:target1/tpg1/
/iscsi/iqn.20...:target1/tpg1> ls
o- tpg1 ................................................. [no-gen-acls, no-auth]
  o- acls ............................................................ [ACLs: 0]
  o- luns ............................................................ [LUNs: 0]
  o- portals ...................................................... [Portals: 1]
    o- 0.0.0.0:3260 ....................................................... [OK]
/iscsi/iqn.20...:target1/tpg1> portals/ create
Using default IP port 3260
Binding to INADDR_ANY (0.0.0.0)
This NetworkPortal already exists in configFS
/iscsi/iqn.20...:target1/tpg1> luns/ create /backstores/fileio/disk1
Created LUN 0.

 

ACL Disable 및 read/write mode

/iscsi/iqn.20...:target1/tpg1> set attribute authentication=0
Parameter authentication is now '0'.
/iscsi/iqn.20...:target1/tpg1> set attribute demo_mode_write_protect=0
Parameter demo_mode_write_protect is now '0'.
/iscsi/iqn.20...:target1/tpg1> set attribute generate_node_acls=1
Parameter generate_node_acls is now '1'.
/iscsi/iqn.20...:target1/tpg1> exit
Global pref auto_save_on_exit=true
Last 10 configs saved in /etc/target/backup.
Configuration saved to /etc/target/saveconfig.json
[root@centos74 ~]#

 

block Test 진행

/dev/sdb lvm Type 으로 지정 (별도로 지정 하지 않고 lvm 을 생성 하여도 무방합니다)

[root@centos74 ~]# fdisk  -l

Disk /dev/sdb: 10.7 GB, 10737418240 bytes, 20971520 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/sda: 42.9 GB, 42949672960 bytes, 83886080 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000bfdf3

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048     4196351     2097152   83  Linux
/dev/sda2         4196352    12584959     4194304   82  Linux swap / Solaris
/dev/sda3        12584960    83886079    35650560   83  Linux
[root@centos74 ~]# fdisk /dev/sdb
Welcome to fdisk (util-linux 2.23.2).

Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

Device does not contain a recognized partition table
Building a new DOS disklabel with disk identifier 0x4f132fd5.

Command (m for help): n
Partition type:
   p   primary (0 primary, 0 extended, 4 free)
   e   extended
Select (default p): p
Partition number (1-4, default 1): 1
First sector (2048-20971519, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-20971519, default 20971519):
Using default value 20971519
Partition 1 of type Linux and of size 10 GiB is set

Command (m for help): t
Selected partition 1
Hex code (type L to list all codes): 8e
Changed type of partition 'Linux' to 'Linux LVM'

Command (m for help): wq
The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.
[root@centos74 ~]#

 

lvm 생성

[root@centos74 ~]# pvcreate /dev/sdb1
  Physical volume "/dev/sdb1" successfully created.
[root@centos74 ~]# vgcreate vg00 /dev/sdb1
  Volume group "vg00" successfully created
[root@centos74 ~]#
[root@centos74 ~]# lvcreate -L 1G -n lv-vol1 vg00
  Logical volume "lv-vol1" created.
[root@centos74 ~]# lvcreate -L 1G -n lv-vol2 vg00
  Logical volume "lv-vol2" created.
[root@centos74 ~]# lvcreate -L 1G -n lv-vol3 vg00
  Logical volume "lv-vol3" created.
[root@centos74 ~]# lvs
  LV      VG   Attr       LSize Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  lv-vol1 vg00 -wi-a----- 1.00g
  lv-vol2 vg00 -wi-a----- 1.00g
  lv-vol3 vg00 -wi-a----- 1.00g
[root@centos74 ~]#

 

iscsi block Device 생성

[root@centos74 ~]# targetcli
targetcli shell version 2.1.fb46
Copyright 2011-2013 by Datera, Inc and others.
For help on commands, type 'help'.
/> cd /backstores/block
/> cd /backstores/block
/backstores/block> create lv-vol1 /dev/vg00/lv-vol1
Created block storage object lv-vol1 using /dev/vg00/lv-vol1.
/backstores/block> create lv-vol2 /dev/vg00/lv-vol2
Created block storage object lv-vol2 using /dev/vg00/lv-vol2.
/backstores/block> create lv-vol3 /dev/vg00/lv-vol3
Created block storage object lv-vol3 using /dev/vg00/lv-vol3.
/backstores/block>

 

wwn 생성 ( cd iscsi or iscsi/ create)

/iscsi> create iqn.2017-12.com.example:target2
Created target iqn.2017-12.com.example:target2.
Created TPG 1.
Global pref auto_add_default_portal=true
Created default portal listening on all IPs (0.0.0.0), port 3260.
/iscsi>

 

lun 생성

/iscsi> cd iqn.2017-12.com.example:target2/
/iscsi/iqn.20...ample:target2> ls
o- iqn.2017-12.com.example:target2 .......................................................................... [TPGs: 1]
  o- tpg1 ...................................................................................... [no-gen-acls, no-auth]
    o- acls ................................................................................................. [ACLs: 0]
    o- luns ................................................................................................. [LUNs: 0]
    o- portals ........................................................................................... [Portals: 1]
      o- 0.0.0.0:3260 ............................................................................................ [OK]
/iscsi/iqn.20...ample:target2> cd tpg1/luns
/iscsi/iqn.20...et2/tpg1/luns> create /backstores/block/lv-vol1
Created LUN 0.
/iscsi/iqn.20...et2/tpg1/luns> create /backstores/block/lv-vol2
Created LUN 1.
/iscsi/iqn.20...et2/tpg1/luns> create /backstores/block/lv-vol3
Created LUN 2.
/iscsi/iqn.20...et2/tpg1/luns>
/iscsi/iqn.20...et2/tpg1/luns> ls
o- luns ..................................................................................................... [LUNs: 3]
  o- lun0 ...................................................... [block/lv-vol1 (/dev/vg00/lv-vol1) (default_tg_pt_gp)]
  o- lun1 ...................................................... [block/lv-vol2 (/dev/vg00/lv-vol2) (default_tg_pt_gp)]
  o- lun2 ...................................................... [block/lv-vol3 (/dev/vg00/lv-vol3) (default_tg_pt_gp)]
/iscsi/iqn.20...et2/tpg1/luns>

 

ACL Disable 및 read/write mode

/iscsi/iqn.20...et2/tpg1/luns> cd

/iscsi/iqn.20...:target2/tpg1> set attribute authentication=0
Parameter authentication is now '0'.
/iscsi/iqn.20...:target2/tpg1> set attribute demo_mode_write_protect=0
Parameter demo_mode_write_protect is now '0'.
/iscsi/iqn.20...:target2/tpg1> set attribute generate_node_acls=1
Parameter generate_node_acls is now '1'.
/iscsi/iqn.20...:target2/tpg1> exit
Global pref auto_save_on_exit=true
Last 10 configs saved in /etc/target/backup.
Configuration saved to /etc/target/saveconfig.json
[root@centos74 ~]#

 

 

iscsi-Client

[root@centos7-test ~]# yum install -y iscsi-initiator-utils

 

fileio Test

iscsi lun 확인

[root@centos7-test ~]# iscsiadm --mode discoverydb --type sendtargets --portal 192.168.186.100 --discover
192.168.186.100:3260,1 iqn.2017-12.com.example:target1
[root@centos7-test ~]#

 

iscsi login 

[root@centos7-test ~]# iscsiadm --mode node --targetname iqn.2017-12.com.example:target1 --portal 192.168.186.100 --login
Logging in to [iface: default, target: iqn.2017-12.com.example:target1, portal: 192.168.186.100,3260] (multiple)
Login to [iface: default, target: iqn.2017-12.com.example:target1, portal: 192.168.186.100,3260] successful.
[root@centos7-test ~]#

 

scsi 확인 

[root@centos7-test ~]# cat /proc/scsi/scsi
Attached devices:
Host: scsi2 Channel: 00 Id: 00 Lun: 00
  Vendor: VMware,  Model: VMware Virtual S Rev: 1.0
  Type:   Direct-Access                    ANSI  SCSI revision: 02
Host: scsi4 Channel: 00 Id: 00 Lun: 00
  Vendor: NECVMWar Model: VMware SATA CD01 Rev: 1.00
  Type:   CD-ROM                           ANSI  SCSI revision: 05
Host: scsi34 Channel: 00 Id: 00 Lun: 00
  Vendor: LIO-ORG  Model: disk1            Rev: 4.0
  Type:   Direct-Access                    ANSI  SCSI revision: 05
[root@centos7-test ~]#

 

fdisk 확인 

[root@centos7-test ~]# fdisk  -l

Disk /dev/sda: 42.9 GB, 42949672960 bytes, 83886080 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000bfdf3

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048     4196351     2097152   83  Linux
/dev/sda2         4196352    12584959     4194304   82  Linux swap / Solaris
/dev/sda3        12584960    83886079    35650560   83  Linux

Disk /dev/sdb: 10.7 GB, 10737418240 bytes, 20971520 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 4194304 bytes

[root@centos7-test ~]#

 

iscsi logout

[root@centos7-test ~]# iscsiadm --mode node --targetname iqn.2017-12.com.example:target1 --portal 192.168.186.100 -u
Logging out of session [sid: 2, target: iqn.2017-12.com.example:target1, portal: 192.168.186.100,3260]
Logout of [sid: 2, target: iqn.2017-12.com.example:target1, portal: 192.168.186.100,3260] successful.
[root@centos7-test ~]# iscsiadm --mode node --targetname iqn.2017-12.com.example:target1 --portal 192.168.186.100 -o delete

 

fdisk 확인

[root@centos7-test ~]# fdisk  -l

Disk /dev/sda: 42.9 GB, 42949672960 bytes, 83886080 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000bfdf3

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048     4196351     2097152   83  Linux
/dev/sda2         4196352    12584959     4194304   82  Linux swap / Solaris
/dev/sda3        12584960    83886079    35650560   83  Linux
[root@centos7-test ~]#

 

block Test

iscsi lun 확인

[root@centos7-test ~]# iscsiadm --mode discoverydb --type sendtargets --portal 192.168.186.100 --discover
192.168.186.100:3260,1 iqn.2017-12.com.example:target1
192.168.186.100:3260,1 iqn.2017-12.com.example:target2
[root@centos7-test ~]#

 

iscsi login 

[root@centos7-test ~]# iscsiadm --mode node --targetname iqn.2017-12.com.example:target2 --portal 192.168.186.100 --login
Logging in to [iface: default, target: iqn.2017-12.com.example:target2, portal: 192.168.186.100,3260] (multiple)
Login to [iface: default, target: iqn.2017-12.com.example:target2, portal: 192.168.186.100,3260] successful.
[root@centos7-test ~]#

 

scsi 확인

[root@centos7-test ~]# cat /proc/scsi/scsi
Attached devices:
Host: scsi2 Channel: 00 Id: 00 Lun: 00
  Vendor: VMware,  Model: VMware Virtual S Rev: 1.0
  Type:   Direct-Access                    ANSI  SCSI revision: 02
Host: scsi4 Channel: 00 Id: 00 Lun: 00
  Vendor: NECVMWar Model: VMware SATA CD01 Rev: 1.00
  Type:   CD-ROM                           ANSI  SCSI revision: 05
Host: scsi35 Channel: 00 Id: 00 Lun: 00
  Vendor: LIO-ORG  Model: lv-vol1          Rev: 4.0
  Type:   Direct-Access                    ANSI  SCSI revision: 05
Host: scsi35 Channel: 00 Id: 00 Lun: 01
  Vendor: LIO-ORG  Model: lv-vol2          Rev: 4.0
  Type:   Direct-Access                    ANSI  SCSI revision: 05
Host: scsi35 Channel: 00 Id: 00 Lun: 02
  Vendor: LIO-ORG  Model: lv-vol3          Rev: 4.0
  Type:   Direct-Access                    ANSI  SCSI revision: 05
[root@centos7-test ~]#

 

fdisk 확인

[root@centos7-test ~]# fdisk -l

Disk /dev/sda: 42.9 GB, 42949672960 bytes, 83886080 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000bfdf3

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048     4196351     2097152   83  Linux
/dev/sda2         4196352    12584959     4194304   82  Linux swap / Solaris
/dev/sda3        12584960    83886079    35650560   83  Linux

Disk /dev/sdb: 1073 MB, 1073741824 bytes, 2097152 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 4194304 bytes


Disk /dev/sdc: 1073 MB, 1073741824 bytes, 2097152 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 4194304 bytes


Disk /dev/sdd: 1073 MB, 1073741824 bytes, 2097152 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 4194304 bytes

[root@centos7-test ~]#

 

iscsi logout

[root@centos7-test ~]# iscsiadm --mode node --targetname iqn.2017-12.com.example:target2 --portal 192.168.186.100 -u
Logging out of session [sid: 3, target: iqn.2017-12.com.example:target2, portal: 192.168.186.100,3260]
Logout of [sid: 3, target: iqn.2017-12.com.example:target2, portal: 192.168.186.100,3260] successful.
[root@centos7-test ~]# iscsiadm --mode node --targetname iqn.2017-12.com.example:target2 --portal 192.168.186.100 -o delete
[root@centos7-test ~]#

 

fdisk 확인

[root@centos7-test ~]# fdisk -l

Disk /dev/sda: 42.9 GB, 42949672960 bytes, 83886080 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000bfdf3

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048     4196351     2097152   83  Linux
/dev/sda2         4196352    12584959     4194304   82  Linux swap / Solaris
/dev/sda3        12584960    83886079    35650560   83  Linux
[root@centos7-test ~]#

 

방화벽 사용시 

[root@centos74 ~]# firewall-cmd --add-service=iscsi-target --permanent 
success
[root@centos74 ~]# firewall-cmd --reload

 

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