iSCSI : Configure Initiator2019/07/17 |
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Configure iSCSI Initiator.
This example is based on the environment below.
+----------------------+ | +----------------------+ | [ iSCSI Target ] |10.0.0.30 | 10.0.0.31| [ iSCSI Initiator ] | | dlp.srv.world +----------+----------+ www.srv.world | | | | | +----------------------+ +----------------------+ |
| [1] | Configure iSCSI Initiator. |
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root@www:~#
apt -y install open-iscsi parted
root@www:~#
vi /etc/iscsi/initiatorname.iscsi # change to the same IQN you set on the iSCSI target server InitiatorName= iqn.2019-07.world.srv:www.srv.world
root@www:~#
vi /etc/iscsi/iscsid.conf # line 56: uncomment node.session.auth.authmethod = CHAP # line 60,61: uncomment and specify the username and password you set on the iSCSI target node.session.auth.username = username node.session.auth.password = password
root@www:~#
systemctl restart iscsid open-iscsi
# discover target root@www:~# iscsiadm -m discovery -t sendtargets -p 10.0.0.30 10.0.0.30:3260,1 iqn.2019-07.world.srv:storage.target01 # confirm status after discovery root@www:~# iscsiadm -m node -o show # BEGIN RECORD 2.0-874 node.name = iqn.2019-07.world.srv:storage.target01 node.tpgt = 1 node.startup = manual node.leading_login = No ..... ..... node.conn[0].iscsi.IFMarker = No node.conn[0].iscsi.OFMarker = No # END RECORD # login to the target root@www:~# iscsiadm -m node --login Logging in to [iface: default, target: iqn.2019-07.world.srv:storage.target01, portal: 10.0.0.30,3260] (multiple) Login to [iface: default, target: iqn.2019-07.world.srv:storage.target01, portal: 10.0.0.30,3260] successful. # confirm the established session root@www:~# iscsiadm -m session -o show tcp: [1] 10.0.0.30:3260,1 iqn.2019-07.world.srv:storage.target01 (non-flash) # confirm the partitions root@www:~# cat /proc/partitions major minor #blocks name 254 0 31457280 sda 254 1 248832 sda1 254 2 1 sda2 254 5 31205376 sda5 253 0 27009024 dm-0 253 1 4194304 dm-1 8 0 10485760 sdb # added new device provided from the target server as [sdb]
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| [2] | After setting iSCSI device, configure on Initiator to use it like follwos. |
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# create label root@www:~# parted --script /dev/sdb "mklabel gpt" # create partiton root@www:~# parted --script /dev/sdb "mkpart primary 0% 100%" # format with ext4 root@www:~# mkfs.ext4 /dev/sdb1
mke2fs 1.44.5 (15-Dec-2018)
Creating filesystem with 2617344 4k blocks and 655360 inodes
Filesystem UUID: ef7eec3d-c0c7-459a-af44-a6cdafc316c3
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632
Allocating group tables: done
Writing inode tables: done
Creating journal (16384 blocks): done
Writing superblocks and filesystem accounting information: done
root@www:~# mount /dev/sdb1 /mnt root@www:~# df -hT Filesystem Type Size Used Avail Use% Mounted on udev devtmpfs 2.0G 0 2.0G 0% /dev tmpfs tmpfs 395M 5.4M 390M 2% /run /dev/mapper/debian--vg-root ext4 26G 1.1G 23G 5% / tmpfs tmpfs 2.0G 0 2.0G 0% /dev/shm tmpfs tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup /dev/vda1 ext2 236M 48M 176M 22% /boot tmpfs tmpfs 395M 0 395M 0% /run/user/0 /dev/sda1 ext4 9.8G 37M 9.3G 1% /mnt |
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