스토리지가 없는 업체에서 대용량 서버를 스토리지처럼 사용가능하다.


[root@rhel6 ~]# yum install scsi-target-utils

==============================================================================================================
 Package                       Arch             Version                    Repository                    Size
==============================================================================================================
Installing:
 scsi-target-utils             i686             1.0.24-12.el6_5            rhel-i386-server-6           172 k
Installing for dependencies:
 perl-Config-General           noarch           2.52-1.el6                 rhel-i386-server-6            72 k
 sg3_utils                     i686             1.28-5.el6                 rhel-i386-server-6           471 k

Transaction Summary
==============================================================================================================
Install       3 Package(s)

Total download size: 715 k
Installed size: 0
Is this ok [y/N]:

/dev/sdb1
/dev/sdc1

[root@rhel6 ~]# chkconfig tgtd on

[root@rhel6 ~]# yum install iscsi-initiator-utils
==============================================================================================================
 Package                           Arch       Version                 Repository                         Size
==============================================================================================================
Installing:
 iscsi-initiator-utils             i686       6.2.0.873-10.el6        rhel-i386-server-6                635 k
 iscsi-initiator-utils-devel       i686       6.2.0.873-10.el6        rhel-i386-server-optional-6        48 k

Transaction Summary
==============================================================================================================
Install       2 Package(s)

Total download size: 683 k
Installed size: 0
Is this ok [y/N]:

[root@rhel6]# /etc/init.d/tgtd start
Starting SCSI target daemon:                               [  OK  ]

[root@rhel6]# tgtadm --lld iscsi --op new --mode target --tid 1 -T iqn.theko:rockplace

[root@rhel6 iscsi]# tgtadm --lld iscsi --op new --mode logicalunit --tid 1 --lun 1 -b /dev/sdb1

[root@rhel6 iscsi]# tgtadm --lld iscsi --op new --mode logicalunit --tid 1 --lun 2 -b /dev/sdc1

[root@rhel6 iscsi]# tgtadm --lld iscsi --op show --mode target

[root@rhel6 iscsi]# tgtadm --lld iscsi --op bind --mode target --tid 1 -I ALL

###########################################################################################################

클라이언트

[root@rhel6 ~]# yum install iscsi-initiator-utils

==============================================================================================================
 Package                         Arch           Version                    Repository                    Size
==============================================================================================================
Installing:
 iscsi-initiator-utils           i686           6.2.0.873-10.el6           rhel-i386-server-6           635 k

Transaction Summary
==============================================================================================================
Install       1 Package(s)

Total download size: 635 k
Installed size: 0
Is this ok [y/N]: y

# /etc/init.d/iscsi start

# /etc/init.d/iscsid start

iscsiadm -m node -T  iqn.theko:rockplace -p 192.168.184.128 --login

[root@rhel6 ~]# iscsiadm -m node -T  iqn.theko:rockplace -p 192.168.184.128 --login
Logging in to [iface: default, target: iqn.theko:rockplace, portal: 192.168.184.128,3260] (multiple)
Login to [iface: default, target: iqn.theko:rockplace, portal: 192.168.184.128,3260] successful

[root@rhel6 ~]# fdisk -l

Disk /dev/sda: 53.7 GB, 53687091200 bytes
255 heads, 63 sectors/track, 6527 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000560bc

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          26      204800   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2              26        4961    39640064   83  Linux
/dev/sda3            4961        6267    10485760   83  Linux
/dev/sda4            6267        6528     2097152    5  Extended
/dev/sda5            6267        6528     2096128   82  Linux swap / Solaris

Disk /dev/sdb: 10.7 GB, 10733958144 bytes
64 heads, 32 sectors/track, 10236 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/sdc: 10.7 GB, 10733958144 bytes
64 heads, 32 sectors/track, 10236 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000