Configuration of iscsitarget and iSCSI initator in Linux

Linux iSCSI target configuration process

Article category: Operating System

I. Install iSCSI target for Linux
1. Operating System:
[Root @ rac2 ~] # Cat/etc/issue
Enterprise Linux as Release 4 (October Update 4)
Kernel R on an M
[Root @ rac2/] # uname-
Linux rac2.mycorpdomain.com 2.6.9-42.0.0.0.1.elsmp #1 SMP sun Oct 15 14:02:40 PDT 2006 i686 i686 i386 GNU/Linux
[Root @ rac2/] #

2. decompress the file
[Root @ rac2 ~] # Tar-xzvf iscsitarget-0.4.15.tar.gz
3. Compile
[Root @ rac2 ~] # Cd iscsitarget-0.4.15
[Root @ rac2 iscsitarget-0.4.15] # ls
Changelog copying Doc etc include kernel makefile patches readme. VMWare USR
[Root @ rac2 iscsitarget-0.4.15] # Make
[Root @ rac2 iscsitarget-0.4.15] # make install

 

4. Configuration
[Root @ maid iscsitarget-0.4.15] # vi/etc/ietd. conf
User userid superpassword
Target iqn.2001-04.com. Example: storage. disk2.sys1. XYZ
Lun 0/dev/sdb1 fileio
Alias lun0

5. Start the service
[Root @ rac2 etc] # cd/etc/init. d
[Root @ rac2 init. d] # ls

6. Check for verification
Dmesg-C

 

7. modify the configuration file:
Target iqn.2001-04.com. Example: storage. disk2.sys1. idisk
Lun 4 Path =/dev/sdb1, type = fileio
Alias SDB
The dmesg information is as follows:
Iscsi enterprise target software-version 0.4.15
Iotype_init (92) Register fileio
Iotype_init (92) Register blockio
Iotype_init (92) Register nullio
Log information:
Oct 25 16:31:35 test kernel: iSCSI enterprise target software-version 0.4.15
Oct 25 16:31:35 test kernel: iotype_init (92) Register fileio
Oct 25 16:31:35 test kernel: iotype_init (92) Register blockio
Oct 25 16:31:35 test kernel: iotype_init (92) Register nullio

I have been working on this place for a long time. I have been reading articles about the configuration files which can be configured as follows:
Target iqn.2001-04.com. Example: storage. disk2.sys1. XYZ
Lun 0/dev/sdb1 fileio
Alias Test
But I have never been able to. I used to be a virtual machine and re-installed redhat4u4. I still cannot. I installed redhat5, but I still cannot.

In the middle, I also tried to use the following configuration file:
User userid superpassword
Target iqn.2001-04.com. Example: storage. disk2.sys1. XYZ
Lun 0 Path =/dev/sdb1, type = fileio
Alias Test
But not yet. I finally found that I wrote the letter "type" in lower case.

2. Red Hat Linux iSCSI initiator Configuration
1. Operating System:
[Root @ Rac1 ~] # Cat/etc/issue
Enterprise Linux as Release 4 (October Update 4)
Kernel R on an M
[Root @ Rac1 ~] #
2. Install Initiator
[Root @ Rac1 ~] # Rpm-IVH iscsi-initiator-utils-4.0.3.0-4.i386.rpm
Warning: iscsi-initiator-utils-4.0.3.0-4.i386.rpm: V3 DSA Signature: nokey, key ID db42a60e
Preparing... ######################################## ### [100%]
1: iscsi-initiator-utils ################################### ####### [1, 100%]
[Root @ Rac1 ~] #
3. Modify the/etc/iscsid. conf file.
VI/etc/iscsid. conf
Modify the following three items:
Discoveryaddress = <IP address>
This needs to be set to the Group IP address of your uit array.
Sendasynctext = Yes
For the initiator to receive Vendor Specific async events from the target.
Continuous = Yes
To globally specify that all discovery sessions be kept open.
4. Start the service
[Root @ Rac1 etc] # service iSCSI start
Checking iSCSI config: [OK]
Loading iSCSI DRIVER: [OK]
Mknod: '/dev/iscsictl': file exists
Starting iscsid: [OK]
[Root @ Rac1 etc] #
5. Set the iscsi service
[Root @ Rac1 etc] # chkconfig -- list iSCSI
[Root @ Rac1 etc] # chkconfig -- add iSCSI
[Root @ Rac1 etc] # chkconfig -- add iSCSI
[Root @ Rac1 etc] # chkconfig iSCSI on
[Root @ Rac1 etc] # chkconfig -- list iSCSI
Iscsi 0: off 1: off 2: On 3: On 4: On 5: on 6: Off
6. view the SCSI Device
[Root @ Rac1 etc] # iSCSI-ls
**************************************** ***************************************
Sfnet iSCSI driver version.... 1.11-3 (02-may-2006)
**************************************** ***************************************
[Root @ Rac1 etc] #
7. Normally:
[Root @ Rac1 ~] # ISCSI-ls
**************************************** ***************************************
Sfnet iSCSI driver version.... 1.11-3 (02-may-2006)
**************************************** ***************************************
Target name: iqn.2001-04.com. Example: storage. disk2.sys1. idisk
Target alias:
Host ID: 6
Bus ID: 0
Target ID: 0
Target address: 172.25.1.100: 3260,1
Session Status: established at Thu Oct 25 00:46:13 CST 2007
Session ID: isid 00023d000001 tsih 200
**************************************** ***************************************
[Root @ Rac1 ~] #

8. You can see the newly added device through dmesg.