Centos 5 上配置 iSCSI 設定

這是本文件的舊版！

安裝 iscsitarget

yum install kernel-devel openssl-devel gcc rpm-build
rpm -q kernel-devel openssl-devel gcc rpm-build
wget http://downloads.sourceforge.net/project/iscsitarget/iscsitarget/1.4.18/iscsitarget-1.4.18.tar.gz
tar -xvf iscsitarget-1.4.18.tar.gz
cd iscsitarget-1.4.18
make 
make install

看執行過程

<xtermrtf> [root@pd920 ~]# rpm -q kernel-devel openssl-devel gcc rpm-build kernel-devel-2.6.18-128.7.1.el5 kernel-devel-2.6.18-164.el5 openssl-devel-0.9.8e-12.el5 openssl-devel-0.9.8e-12.el5 gcc-4.1.2-44.el5 rpm-build-4.4.2.3-9.el5 [root@pd920 ~]# cd source/ [root@pd920 source]# wget http://downloads.sourceforge.net/project/iscsitarget/iscsitarget/1.4.18/iscsitarget-1.4.18.tar.gz –06:42:57– http://nchc.dl.sourceforge.net/sourceforge/iscsitarget/iscsitarget-1.4.18.tar.gz 正在查找主機 nchc.dl.sourceforge.net… 211.79.60.17, 2001:e10:ffff:1f02::17 正在連接 nchc.dl.sourceforge.net|211.79.60.17|:80… 連上了。已送出 HTTP 要求，正在等候回應… 200 OK 長度: 121290 (118K) [application/x-gzip] Saving to: `iscsitarget-1.4.18.tar.gz'

100%[================================================================================================================================⇒] 121,290 85.5K/s in 1.4s

07:04:28 (85.5 KB/s) – 已儲存 ‘iscsitarget-1.4.18.tar.gz’ [121290/121290])

FINISHED –07:04:28– Downloaded: 1 files, 118K in 1.4s (85.5 KB/s) [root@pd920 source]# tar -xvf iscsitarget-0.4.18.tar.gz iscsitarget-1.4.18/ iscsitarget-1.4.18/etc/ iscsitarget-1.4.18/etc/initiators.allow iscsitarget-1.4.18/etc/initiators.deny iscsitarget-1.4.18/etc/targets.allow : : iscsitarget-1.4.18/doc/manpages/ iscsitarget-1.4.18/doc/manpages/ietd.8 iscsitarget-1.4.18/doc/manpages/ietadm.8 iscsitarget-1.4.18/doc/manpages/ietd.conf.5 iscsitarget-1.4.18/README.initiators [root@c2q-q9400 source]# cd iscsitarget-1.4.18 [root@c2q-q9400 iscsitarget-1.4.18]# make Applying Patch compat-2.6.29.patch patching file kernel/config.c Applying Patch compat-2.6.28.patch patching file kernel/conn.c Applying Patch compat-2.6.25-2.6.27.patch patching file kernel/block-io.c :

CC [M]  /root/source/iscsitarget-1.4.18/kernel/ua.o
CC [M]  /root/source/iscsitarget-1.4.18/kernel/seq_list.o
LD [M]  /root/source/iscsitarget-1.4.18/kernel/iscsi_trgt.o
Building modules, stage 2.
MODPOST
CC      /root/source/iscsitarget-1.4.18/kernel/iscsi_trgt.mod.o
LD [M]  /root/source/iscsitarget-1.4.18/kernel/iscsi_trgt.ko

make[1]: Leaving directory `/usr/src/kernels/2.6.18-128.7.1.el5-x86_64' </xtermrtf>

建立 iSCSI 使用硬碟空間區塊

make /data1t/iSCSI
dd if=/dev/zero of=/data1t/iSCSI/LUN0 bs=1024 count=40000
dd if=/dev/zero of=/data1t/iSCSI/LUN1 bs=1024 count=40000

設定 IET daemon
```
vi /etc/initiators.allow
```
<xtermrtf>

#iqn.<year>-<month>.<hostname>:<LVM diskname> #iqn.2009-03.pd920:mydiskname ALL 192.168.11.236 </xtermrtf>

vi /etc/initiators.deny

vi /etc/ietd.conf

<xtermrtf> Target iqn.2009-10.com.ichiayi:storage.data1t.iscsi.data01

      #IncomingUser trysoft trysoft
      #OutgoingUser trysoft trysoft
      Lun 0 Path=/data1t/iSCSI/LUN0,Type=fileio
      Lun 1 Path=/data1t/iSCSI/LUN1,Type=fileio
      Lun 2 Path=/data1t/iSCSI/LUN2,Type=fileio
      Alias iSCSI for ichiayi
      MaxConnections          1
      InitialR2T              Yes
      ImmediateData           Yes

</xtermrtf>

設定與啟動 iSCSI-Target 服務

chkconfig iscsi-target on
service iscsi-target start

安裝 iscsi-initiator-utils
```
yum install iscsi-initiator-utils
```

設定與啟動 iSCSI-initiator
```
vi  /etc/iscsi/iscsid.conf 
```
<xtermrtf>

node.startup = automatic node.session.timeo.replacement_timeout = 120 node.conn[0].timeo.login_timeout = 15 node.conn[0].timeo.logout_timeout = 15 node.conn[0].timeo.noop_out_interval = 15 node.conn[0].timeo.noop_out_timeout = 15 node.session.initial_login_retry_max = 10 node.session.cmds_max = 128 node.session.queue_depth = 32 node.session.iscsi.InitialR2T = No node.session.iscsi.ImmediateData = Yes node.session.iscsi.FirstBurstLength = 262144 node.session.iscsi.MaxBurstLength = 16776192 node.conn[0].iscsi.MaxRecvDataSegmentLength = 131072 discovery.sendtargets.iscsi.MaxRecvDataSegmentLength = 32768 node.session.iscsi.FastAbort = No </xtermrtf>

vi /etc/iscsi/initiatorname.iscsi

<xtermrtf> InitiatorName=iqn.2009-10.com.ichiayi:vm-mail </xtermrtf>

chkconfig --list | grep iscsi

看執行過程

找尋 iSCSI-target 與重起 iSCSI-initiator

iscsiadm -m discovery -t sendtargets -p 192.168.11.250
service iscsi restart

看執行過程

<xtermrtf> [root@pdc-e2160 ~]# iscsiadm -m discovery -t sendtargets -p 192.168.11.250 192.168.11.250:3260,1 iqn.2009-10.com.ichiayi:storage.data1t.iscsi.data01 [root@vm-mail ~]# service iscsi start iscsid 已停止執行但 pid 檔案仍在 Turning off network shutdown. Starting iSCSI daemon: [ 確定 ]

                                                         [  確定  ]

正在設置 iSCSI 目標（targets）: Logging in to [iface: default, target: iqn.2009-10.com.ichiayi:storage.data1t.iscsi.data01, portal: 192.168.11.250,3260] Login to [iface: default, target: iqn.2009-10.com.ichiayi:storage.data1t.iscsi.data01, portal: 192.168.11.250,3260]: successful

                                                         [  確定  ]

</xtermrtf>

如果出現無法登入的狀況，可能要調整權限設定的部份

可以透過 iscsiadm 工具執行檢視問題點 Exp.

iscsiadm -m node -p 192.168.11.250 -T iqn.2009-10.com.ichiayi:storage.data1t.iscsi.data01 -l -d 10
  * 如果有正常連上就會有以上的訊息 login to [xxx] : successful

使用 iSCSI 磁碟
```
fdisk -l 
```

儲存, 網路磁碟, centos, iscsi

Num	Page	Accesses
1	tech:fortigate_tips	959
2	tech:win10_hash	792
3	tech:ubuntu_xrdp	752
4	start	711
5	tech:sqlsrv	445
6	tech:pvetips	315
7	tech:win10snmpd	296
8	tech:nginx_proxy_manager	283
9	tech:squid	266
10	tech:openvpn-client_ubunt...	263

Centos 5 上配置 iSCSI 設定

iSCSI 主機端

iSCSI 使用端

參考網址