RHEL5 iscsi target 설정방법
– 로지컬 볼륨 생성
# lvscan
ACTIVE ‘/dev/Vol_iscsi/Log_iscsi0’ [40.00 GB] inherit
ACTIVE ‘/dev/Vol_iscsi/Log_iscsi1’ [40.00 GB] inherit
ACTIVE ‘/dev/Vol_iscsi/Log_iscsi2’ [40.00 GB] inherit
현재 시스템에서 iscsi를 통해서 client에게 보여줄 block device가 3개 있다.
# yum -y install scsi-target-utils
# service tgtd start
# tgtadm –lld iscsi –op new –mode target –tid 1 -T iqn.2008-06.com.futurebnc.www.sd-iscsi:storage.disk1
# tgtadm –lld iscsi –op show –mode target
Target 1: iqn.2008-06.com.futurebnc.www.sd-iscsi:storage.disk1
System information:
Driver: iscsi
Status: running
I_T nexus information:
LUN information:
LUN: 0
Type: controller
SCSI ID: deadbeaf1:0
SCSI SN: beaf10
Size: 0
Backing store: No backing store
Account information:
ACL information:
# tgtadm –lld iscsi –op new –mode logicalunit –tid=1 –lun=1 -b /dev/Vol_iscsi/Log_iscsi0
# tgtadm –lld iscsi –op new –mode logicalunit –tid=1 –lun=2 -b /dev/Vol_iscsi/Log_iscsi1
# tgtadm –lld iscsi –op new –mode logicalunit –tid=1 –lun=3 -b /dev/Vol_iscsi/Log_iscsi2
– 아래 하나만 선택
# tgtadm –lld iscsi –op bind –mode target –tid 1 -I ALL (모두)
or
# tgtadm –lld iscsi –op bind –mode target –tid 1 -I 192.168.0.0/27 (특정대역)
or
# tgtadm –lld iscsi –op bind –mode target –tid 1 -I 210.220.241.101 (특정호스트)
# tgtadm –lld iscsi –op bind –mode target –tid 1 -I 210.220.241.102
# tgtadm –lld iscsi –op show –mode target
Target 1: iqn.2008-06.com.futurebnc.www.sd-iscsi:storage.disk1
System information:
Driver: iscsi
Status: running
I_T nexus information:
LUN information:
LUN: 0
Type: controller
SCSI ID: deadbeaf1:0
SCSI SN: beaf10
Size: 0
Backing store: No backing store
LUN: 1
Type: disk
SCSI ID: deadbeaf1:1
SCSI SN: beaf11
Size: 40G
Backing store: /dev/Vol_iscsi/Log_iscsi0
LUN: 2
Type: disk
SCSI ID: deadbeaf1:2
SCSI SN: beaf12
Size: 40G
Backing store: /dev/Vol_iscsi/Log_iscsi1
L
Account information:
ACL information:
ALL
# tgtadm –lld iscsi –op show –mode target –tid 1
MaxRecvDataSegmentLength=8192
MaxXmitDataSegmentLength=8192
HeaderDigest=None
DataDigest=None
InitialR2T=Yes
MaxOutstandingR2T=1
ImmediateData=Yes
FirstBurstLength=65536
MaxBurstLength=262144
DataPDUInOrder=Yes
DataSequenceInOrder=Yes
ErrorRecoveryLevel=0
IFMarker=No
OFMarker=No
DefaultTime2Wait=2
DefaultTime2Retain=20
OFMarkInt=Reject
IFMarkInt=Reject
MaxConnections=1
– Initiator에서 테스트 해보기 (클라이언트)
# cat /proc/partitions
major minor #blocks name
8 0 244140625 sda
8 1 104391 sda1
8 2 4008217 sda2
8 3 4008217 sda3
8 4 1 sda4
# yum -y install iscsi-initiator-utils
# service iscsi status
iscsid (pid 1830 1829) is running…
# iscsiadm -m discovery -t st -p 10.0.0.62
10.0.0.62:3260,1 iqn.2008-06.com.oracle.kr.sd-iscsi:storage.disk1
# iscsiadm -m node –loginall all
Login session [10.0.0.62:3260 iqn.2008-06.com.futurebnc.www.sd-iscsi:storage.disk1]
# cat /proc/partitions
major minor #blocks name
8 0 244140625 sda
8 1 104391 sda1
8 2 4008217 sda2
8 3 4008217 sda3
8 4 1 sda4
8 16 41943040 sdb
8 32 41943040 sdc
8 48 41943040 sdd
# iscsiadm -m node
10.0.0.62:3260,1 iqn.2008-06.com.futurebnc.www.sd-iscsi:storage.disk1
# iscsiadm -m node –targetname iqn.2008-06.com.futurebnc.www.sd-iscsi:storage.disk1 –portal 10.0.0.62:3260 –logout
# cat /proc/partitions
– 리부팅 후에는 설정이 사리진다…
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