View source for ISCSI: Connect Ubuntu ke iSCSI Volume

==Install Aplikasi==

Install

 $ sudo apt-get install open-iscsi

Pastikan ada /etc/iscsi supaya iscsiadm tidak complain

 ln -s /etc/{iscsid.conf,initiatorname.iscsi} /etc/iscsi/


==Edit Konfigurasi==

Konfigurasi default ada di /etc/iscsi/iscsid.conf atau ~/.iscsid.conf. Buka /etc/iscsi/iscsid.conf

 # vi /etc/iscsi/iscsid.conf

Set node.session.auth.username, node.session.auth.password dan parameter lainnya sebagai berikut:

 node.startup = automatic
 node.session.auth.username = MY-ISCSI-USER
 node.session.auth.password = MY-ISCSI-PASSWORD
 discovery.sendtargets.auth.username = MY-ISCSI-USER
 discovery.sendtargets.auth.password = MY-ISCSI-PASSWORD
 node.session.timeo.replacement_timeout = 120
 node.conn[0].timeo.login_timeout = 15
 node.conn[0].timeo.logout_timeout = 15
 node.conn[0].timeo.noop_out_interval = 10
 node.conn[0].timeo.noop_out_timeout = 15
 node.session.iscsi.InitialR2T = No
 node.session.iscsi.ImmediateData = Yes
 node.session.iscsi.FirstBurstLength = 262144
 node.session.iscsi.MaxBurstLength = 16776192
 node.conn[0].iscsi.MaxRecvDataSegmentLength = 65536 

Versi minimal sekali, ubah 

 node.startup = manual

menjadi

 node.startup = automatic

==Restart==

Restart open-iscsi

 /etc/init.d/open-iscsi restart

==Discovery Target==

Jalanan discovery terhadap iscsi target host:

 # iscsiadm -m discovery -t sendtargets -p ISCSI-SERVER-IP-ADDRESS

Jika iSCSI server IP address adalah 192.168.1.100, tulis:

 # iscsiadm -m discovery -t sendtargets -p 192.168.1.100

atau

 # iscsiadm --mode discovery --type sendtargets --portal 192.168.1.100

Akan keluar kira-kira

 # iscsiadm -m discovery -t sendtargets -p 192.168.1.100
 192.168.1.101:3260,3 iqn.1992-04.com.emc:cx.ckm00100900301.a3
 192.168.1.102:3260,1 iqn.1992-04.com.emc:cx.ckm00100900301.b2
 192.168.1.103:3260,4 iqn.1992-04.com.emc:cx.ckm00100900301.b3
 192.168.1.100:3260,2 iqn.1992-04.com.emc:cx.ckm00100900301.a2

Login menggunakan perintah

 # iscsiadm --mode node --targetname iqn.1992-04.com.emc:cx.ckm00100900301.a2 --portal 192.168.1.100:3260 --login

Restart iscsi

 # /etc/init.d/open-iscsi restart

==Cara Cepat==

Login ke iSCSI target secara cepat

 iscsiadm --mode node -l

Unload iSCSI target secara cepat

 iscsiadm --mode node -u


==Format iSCSI Volume==

Seharusnya akan ada tambahan drive misalnya /dev/sdc. Gunakan /var/log/messages untuk melihat nama device:

 # tail -f /var/log/messages

Jika nama device adalah /dev/sdc, masukan langkah berikut untuk membuat partisi:

 # fdisk /dev/sdc

Format partisi tersebut:

 # mkfs.ext3 /dev/sdc1

Mount file system:

 # mkdir /iscsi
 # mount /dev/sdc1 /iscsi

==Referensi==

* http://www.cyberciti.biz/faq/howto-setup-debian-ubuntu-linux-iscsi-initiator/
* https://help.ubuntu.com/11.10/serverguide/iscsi-initiator.html

==Pranala Menarik==

* [[iSCSI]]
* [[Linux Howto]]