Changes between Initial Version and Version 1 of jazz/12-04-05

Timestamp:

Apr 5, 2012, 5:57:42 PM (14 years ago)

Author:

jazz

Comment:

--

jazz/12-04-05

@@ +1 @@
+= 2012-04-05 =
+
+== hadoop.nchc.org.tw ==
+
+ * 參考 [wiki:jazz/11-06-20  2011-06-20 筆記]
+ * <服務> 將 hadoop.nchc.org.tw 的 /home 容量加大
+  * 這次比較不同的是採用 iSCSI 的硬碟
+  * 測試環境：Debian GNU/Linux 6.0.4
+{{{
+jazz@hadoop:~$ lsb_release -a
+No LSB modules are available.
+Distributor ID: Debian
+Description: Debian GNU/Linux 6.0.4 (squeeze)
+Release: 6.0.4
+Codename: squeeze
+}}}
+  * 測試步驟：
+   * 安裝 open-iscsi
+{{{
+jazz@hadoop:~$ sudo apt-get install open-iscsi
+}}}
+   * 修改 /etc/iscsi/iscsid.conf
+{{{
+#!diff
+--- iscsid.conf.org 2012-04-05 17:04:06.000000000 +0800
++++ iscsid.conf 2012-04-05 17:05:15.000000000 +0800
+@@ -25,10 +25,10 @@
+#*****************
+
+# To request that the iscsi initd scripts startup a session set to "automatic".
+-# node.startup = automatic
++node.startup = automatic
+#
+# To manually startup the session set to "manual". The default is manual.
+-node.startup = manual
++# node.startup = manual
+
+# *************
+# CHAP Settings
+@@ -36,12 +36,12 @@
+
+# To enable CHAP authentication set node.session.auth.authmethod
+# to CHAP. The default is None.
+-#node.session.auth.authmethod = CHAP
++node.session.auth.authmethod = CHAP
+
+# To set a CHAP username and password for initiator
+# authentication by the target(s), uncomment the following lines:
+-#node.session.auth.username = username
+-#node.session.auth.password = password
++node.session.auth.username = 登入帳號
++node.session.auth.password = 登入密碼
+
+# To set a CHAP username and password for target(s)
+# authentication by the initiator, uncomment the following lines:
+@@ -50,12 +50,12 @@
+
+# To enable CHAP authentication for a discovery session to the target
+# set discovery.sendtargets.auth.authmethod to CHAP. The default is None.
+-#discovery.sendtargets.auth.authmethod = CHAP
++discovery.sendtargets.auth.authmethod = CHAP
+
+# To set a discovery session CHAP username and password for the initiator
+# authentication by the target(s), uncomment the following lines:
+-#discovery.sendtargets.auth.username = username
+-#discovery.sendtargets.auth.password = password
++discovery.sendtargets.auth.username = 登入帳號
++discovery.sendtargets.auth.password = 登入密碼
+
+# To set a discovery session CHAP username and password for target(s)
+# authentication by the initiator, uncomment the following lines:
+}}}
+   * 啟動 iscsid
+{{{
+jazz@hadoop:~$ sudo /etc/init.d/open-iscsi restart
+[sudo] password for jazz:
+Unmounting iscsi-backed filesystems: Unmounting all devices marked _netdev.
+Disconnecting iSCSI targets:.
+Stopping iSCSI initiator service:.
+Starting iSCSI initiator service: iscsid.
+Setting up iSCSI targets:
+iscsiadm: No records found!
+.
+Mounting network filesystems:.
+}}}
+   * 掃描 iSCSI 硬碟
+{{{
+jazz@hadoop:~$ sudo iscsiadm -m discovery -t sendtargets -p X.X.X.X(iSCSI Target Server 的 IP)
+X.X.X.X:3260,0 iqn.2011-09.com.ems5:das-2000-i112a-fff000958:dev0
+}}}
+   * 使用 iSCSI 硬碟
+{{{
+jazz@hadoop:~$ sudo iscsiadm -m node --targetname "iqn.2011-09.com.ems5:das-2000-i112a-fff000958:dev0" --login &
+}}}
+   * 查看 dmesg 會發現找到 iSCSI 硬碟在 /dev/sdX (這裡找到在 /dev/sdd)
+{{{
+[2659438.350894] Loading iSCSI transport class v2.0-870.
+[2659438.359496] iscsi: registered transport (tcp)
+[2659438.382648] iscsi: registered transport (iser)
+[2659566.984113] scsi8 : iSCSI Initiator over TCP/IP
+[2659567.555637] scsi 8:0:0:0: Direct-Access     EMS5     DAS 2000-i112a   211  PQ: 0 ANSI: 4
+[2659567.556192] sd 8:0:0:0: [sdd] Very big device. Trying to use READ CAPACITY(16).
+[2659567.556792] sd 8:0:0:0: [sdd] 7811891200 512-byte logical blocks: (3.99 TB/3.63 TiB)
+[2659567.556937] sd 8:0:0:0: [sdd] Write Protect is off
+[2659567.556940] sd 8:0:0:0: [sdd] Mode Sense: bb 00 00 00
+[2659567.557250] sd 8:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
+[2659567.557594] sd 8:0:0:0: [sdd] Very big device. Trying to use READ CAPACITY(16).
+[2659567.558192]  sdd: unknown partition table
+[2659567.577709] sd 8:0:0:0: [sdd] Very big device. Trying to use READ CAPACITY(16).
+[2659567.578310] sd 8:0:0:0: [sdd] Attached SCSI disk
+}}}
+   * 把 /dev/sdd 用 fdisk 先切割一個 partition /dev/sdd1
+{{{
+jazz@hadoop:~$ sudo fdisk /dev/sdd
+}}}
+   * 開始著手把 /dev/sdd1 加入 LVM2
+{{{
+jazz@hadoop:~$ sudo partprobe
+jazz@hadoop:~$ sudo pvcreate /dev/sdd1
+  Physical volume "/dev/sdd1" successfully created
+}}}