1.修改配置文件
修改/etc/iscsi.conf文件，增加以下配置(还有很多参数可以配置):
DiscoveryAddress=172.16.35.228
TargetName=iqn.1987-05.com.cisco:test2
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2.启动iscsi
[root@test2 ~]# /etc/init.d/iscsi start
Checking iscsi config: [ OK ]
Loading iscsi driver: [ OK ]
Starting iscsid: [ OK ]
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3.观察日志
Nov 8 15:25:33 test2 kernel: iscsi-sfnet: Loading iscsi_sfnet version 4:0.1.11-1
Nov 8 15:25:33 test2 kernel: iscsi-sfnet: Control device major number 254
Nov 8 15:25:33 test2 iscsi: Loading iscsi driver: succeeded
Nov 8 15:25:38 test2 iscsid[9664]: version 4:0.1.11 variant (12-Jan-2005)
Nov 8 15:25:38 test2 iscsi: iscsid startup succeeded
Nov 8 15:25:38 test2 iscsid[9668]: cannot make connection to 172.16.35.228:3260: Connection refused
Nov 8 15:25:38 test2 iscsid[9668]: Connection to Discovery Address 172.16.35.228 failed
Nov 8 15:25:39 test2 iscsid[9668]: cannot make connection to 172.16.35.228:3260: Connection refused
Nov 8 15:25:39 test2 iscsid[9668]: Connection to Discovery Address 172.16.35.228 failed
Nov 8 15:25:40 test2 iscsid[9668]: cannot make connection to 172.16.35.228:3260: Connection refused
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如果你看到如上错误，那么你需要启用NetApp的iSCSI支持并创建相应卷组。
4.配置好Netapp
此时日志显示:
Nov 8 15:43:38 test2 kernel: iscsi-sfnet:host0: Session established
Nov 8 15:43:38 test2 kernel: scsi0 : SFNet iSCSI driver
Nov 8 15:43:38 test2 kernel: scsi: unknown device type 31
Nov 8 15:43:38 test2 kernel: Vendor: NETAPP Model: LUN Rev: 0.2
Nov 8 15:43:38 test2 kernel: Type: Unknown ANSI SCSI revision: 04
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这显示主机已经发现了iscsi设备
在dmesg输出中也可以看到这个信息
SCSI subsystem initialized
iscsi-sfnet: Loading iscsi_sfnet version 4:0.1.11-1
iscsi-sfnet: Control device major number 254
iscsi-sfnet: Loading iscsi_sfnet version 4:0.1.11-1
iscsi-sfnet: Control device major number 254
iscsi-sfnet:host0: Session established
scsi0 : SFNet iSCSI driver
scsi: unknown device type 31
Vendor: NETAPP Model: LUN Rev: 0.2
Type: Unknown ANSI SCSI revision: 04
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5.查看设备信息
此时可以使用iscsi-ls等命令查看相关Lun信息
[root@test2 etc]# iscsi-ls
*******************************************************************************
SFNet iSCSI Driver Version ...4:0.1.11(12-Jan-2005)
*******************************************************************************
TARGET NAME : iqn.1992-08.com.netapp:sn.84192734
TARGET ALIAS :
HOST ID : 0
BUS ID : 0
TARGET ID : 0
TARGET ADDRESS : 172.16.35.228:3260,1
SESSION STATUS : ESTABLISHED AT Tue Nov 8 15:43:38 CST 2005
SESSION ID : ISID 00023d000001 TSIH 101
*******************************************************************************
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