ISCSI server 架設

1. 安裝套件

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

2. 產生 file-based images

   ## 產生 images 存放目錄
   [root@dyH ~]# mkdir /srv/iscsi/   
   ## 產生 images 
   [root@deH ~]# dd if=/dev/zero of=/srv/iscsi/disk.img bs=1M count=50
   50+0 records in
   50+0 records out
   52428800 bytes (52 MB) copied, 0.0319766 s, 1.6 GB/s
   

3. 設定 SELinux file contexts

   [root@dyH ~]# chcon -Rv -t tgtd_var_lib_t /srv/iscsi/
   changing security context of `/srv/iscsi/disk.img'
   changing security context of `/srv/iscsi/'
   

4. 啟動 tgtd 服務

   [root@dyH ~]# /etc/init.d/tgtd restart
   

5. 設定開機啟動 tgtd 服務

   [root@dyH ~]# chkconfig tgtd on
   

6. 確認 targets

   [root@dyH ~]# tgt-admin --show
   Target 1: iqn.2012-05.wang.deyu:deyudisk
       System information:
           Driver: iscsi
           State: ready
       I_T nexus information:
       LUN information:
           LUN: 0
               Type: controller
               SCSI ID: IET     00010000
               SCSI SN: beaf10
               Size: 0 MB, Block size: 1
               Online: Yes
               Removable media: No
               Readonly: No
               Backing store type: null
               Backing store path: None
               Backing store flags: 
           LUN: 1
               Type: disk
               SCSI ID: IET     00010001
               SCSI SN: beaf11
               Size: 52 MB, Block size: 512
               Online: Yes
               Removable media: No
               Readonly: No
               Backing store type: rdwr
               Backing store path: /srv/iscsi/disk.img
               Backing store flags: 
       Account information:
       ACL information:
           192.168.122.0/24