iSCSI : Configure Target (ctld)2023/12/27 |
Configure Storage Server with iSCSI.
Storage server with iSCSI on network is called iSCSI Target, Client Host that connects to iSCSI Target is called iSCSI Initiator. +----------------------+ | +----------------------+ | [ iSCSI Target ] |10.0.0.30 | 10.0.0.51| [ iSCSI Initiator ] | | dlp.srv.world +----------+----------+ node01.srv.world | | | | | +----------------------+ +----------------------+ |
[1] | Create disk space to be used as an iSCSI device. |
root@dlp:~ # zpool list NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT zroot 27.5G 1.08G 26.4G - - 0% 3% 1.00x ONLINE - # for a case to create filesystem on existing ZFS pool root@dlp:~ # zfs create -V 10g zroot/ROOT/target01 root@dlp:~ # zfs list zroot/ROOT/target01 NAME USED AVAIL REFER MOUNTPOINT zroot/ROOT/target01 10.2G 25.6G 56K - # for a case to create image on filesystem root@dlp:~ # mkdir /home/iscsi_disks root@dlp:~ # dd if=/dev/zero of=/home/iscsi_disks/target02.img count=0 bs=1 seek=10G |
[2] | Configure iSCSI Target. |
root@dlp:~ #
vi /etc/ctl.conf # create new # set authentication group # auth-group (any name) auth-group auth01 { # login-name and password for CHAP authentication chap username userpassword # IP address you allow to connect to the target initiator-portal 10.0.0.51/32 initiator-portal 10.0.0.61/32 } # set portal # portal-group (any name) portal-group portal01 { # IP address the target listens listen 0.0.0.0:3260 listen [::]:3260 # authentication group to assign discovery-auth-group auth01 } # set target # target (any name) ⇒ naming rule : [ iqn.(year)-(month).(reverse of domain name):(any name) ] target iqn.2023-12.world.srv:dlp.target01 { # authentication group to assign auth-group auth01 # portal group to assign portal-group portal01 # LUN to assign ⇒ lun (number) lun 0 { # device path to assign path /dev/zvol/zroot/ROOT/target01 } } # increase [target] section if setting multiple targets target iqn.2023-12.world.srv:dlp.target02 { auth-group auth01 portal-group portal01 lun 0 { path /home/iscsi_disks/target02.img } } chmod 600 /etc/ctl.conf root@dlp:~ # echo 'ctld_enable="YES"' >> /etc/rc.conf root@dlp:~ # service ctld start Starting ctld. |
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