knowledge:use_an_iscsi_target_from_linux
Table of Contents
Preparation
Install open-iscsi
, at least on Debian systems.
Use an iSCSI target from Linux
In our setup a Synology NAS at 172.16.200.19 provides the targets.
First, run
iscsiadm -m discovery -t sendtargets -p 172.16.200.19
to discover all provided targets.
You get something like this
172.16.200.19:3260,1 iqn.2000-01.com.synology:nas.Target-GitLab.db1c0541e7 [fe80::211:32ff:febe:da31]:3260,1 iqn.2000-01.com.synology:nas.Target-GitLab.db1c0541e7 172.16.200.19:3260,1 iqn.2000-01.com.synology:nas.Target-Bitwarden.db1c0541e7 [fe80::211:32ff:febe:da31]:3260,1 iqn.2000-01.com.synology:nas.Target-Bitwarden.db1c0541e7 172.16.200.19:3260,1 iqn.2000-01.com.synology:nas.Target-Nextcloud.db1c0541e7 [fe80::211:32ff:febe:da31]:3260,1 iqn.2000-01.com.synology:nas.Target-Nextcloud.db1c0541e7 172.16.200.19:3260,1 iqn.2000-01.com.synology:nas.Target-MariaDB.db1c0541e7 [fe80::211:32ff:febe:da31]:3260,1 iqn.2000-01.com.synology:nas.Target-MariaDB.db1c0541e7 172.16.200.19:3260,1 iqn.2000-01.com.synology:nas.Target-Backup.db1c0541e7 [fe80::211:32ff:febe:da31]:3260,1 iqn.2000-01.com.synology:nas.Target-Backup.db1c0541e7
Now, connect to the target using
iscsiadm -m node --targetname "iqn.2000-01.com.synology:nas.Target-Backup.db1c0541e7" \ --portal 172.16.200.19 --login
A new SCSI device will be created. Check the name of the device using dmesg
. You see something like this
[16924536.979916] scsi host13: iSCSI Initiator over TCP/IP [16924537.010635] scsi 13:0:0:1: Direct-Access SYNOLOGY iSCSI Storage 4.0 PQ: 0 ANSI: 5 [16924537.011449] sd 13:0:0:1: Attached scsi generic sg10 type 0 [16924537.012597] sd 13:0:0:1: [sdj] 209715200 512-byte logical blocks: (107 GB/100 GiB) [16924537.012827] sd 13:0:0:1: [sdj] Write Protect is off [16924537.012828] sd 13:0:0:1: [sdj] Mode Sense: 43 00 10 08 [16924537.013111] sd 13:0:0:1: [sdj] Write cache: enabled, read cache: enabled, supports DPO and FUA [16924537.013361] sd 13:0:0:1: [sdj] Optimal transfer size 16384 logical blocks > dev_max (8192 logical blocks) [16924537.018630] sd 13:0:0:1: [sdj] Attached SCSI disk
Now use fdisk
, mkfs
and if you like blkid
on the new device and put it into the /etc/fstab
.
Authenticated target
iscsiadm --mode node --targetname "iqn.2007-01.org.debian.foobar:CDs" -p 192.168.0.1:3260 --op=update --name node.session.auth.authmethod --value=CHAP iscsiadm --mode node --targetname "iqn.2007-01.org.debian.foobar:CDs" -p 192.168.0.1:3260 --op=update --name node.session.auth.username --value=$Id iscsiadm --mode node --targetname "iqn.2007-01.org.debian.foobar:CDs" -p 192.168.0.1:3260 --op=update --name node.session.auth.password --value=$MDP iscsiadm --mode node --targetname "iqn.2007-01.org.debian.foobar:CDs" -p 192.168.0.1:3260 --login
knowledge/use_an_iscsi_target_from_linux.txt · Last modified: 2022/11/02 16:30 by wn