Changes between Version 1 and Version 2 of GTD_Cloud_One_arch

Timestamp:

Mar 17, 2009, 4:18:32 PM (17 years ago)

Author:

rock

Comment:

--

GTD_Cloud_One_arch

@@ -2 +2 @@
 = OpenNEbula 的運作架構 =
 == 1. ONE 的 Daemon ==
- * 當 $ONE_LOCATION/bin/one start 時，會啟動 openNebula，相關的 drivers (Information driver, Virtualization driver & Transfer driver) 和 scheduler。
+ * 當 $ONE_LOCATION/bin/one start 時，會啟動 OpenNebula daemon、相關的 drivers (Information driver, Virtualization driver & Transfer driver) 和 scheduler。
+
+[[BR]]
+== 2. OpenNebula daemon ==
+ * 功能：!OpenNebula daemon (oned) 管理 host, vnet & vm
+   * 設定檔為 $ONE_LOCATION/etc/oned.conf
+     * 相關參數：
+       1. '''HOST_MONITORING_INTERVAL:''' Time in seconds between host monitorization
+       2. '''VM_POLLING_INTERVAL:''' Time in seconds between virtual machine monitorization
+       3. '''VM_DIR:''' Remote path to store the VM images, it should be shared between all the cluster nodes to perform live migrations. This path will be used for all the cluster nodes.
+       4. '''MAC_PREFIX:''' Default MAC prefix to generate virtual network MAC addresses
+       5. '''NETWORK_SIZE:''' Default size for virtual networks
+       6. '''PORT:''' Port where oned will listen for xml-rpc calls
+       7. '''DEBUG_LEVEL:''' Sets the level of verbosity of $ONE_LOCATION/var/oned.log log file. [[BR]](0 -> ERROR, 1 -> WARNING, 2 ->INFO, 3 -> DEBUG)
+   * 範例：
+{{{
+#-------------------------------------------------------------------------------
+# Daemon configuration attributes                                               
+#-------------------------------------------------------------------------------
+HOST_MONITORING_INTERVAL = 10
+VM_POLLING_INTERVAL      = 10
+
+VM_DIR       = /local/images
+
+MAC_PREFIX   = "00:01"
+NETWORK_SIZE = 254
+
+PORT         =  2633
+DEBUG_LEVEL  = 3
+}}}
+
+[[BR]]
+== 3. Information Driver ==
+ * [http://www.opennebula.org/doku.php?id=documentation:rel1.2:img Information Driver 配置]
+ * 功能：從 Clustre node 去收集資訊，相依選擇的 Virtualizer
+ * IM 的 File：
+   1. $ONE_LOCATION/lib/mads/one_im_ssh : shell script wrapper to the driver itself. Sets the environment and other bootstrap tasks.
+   2. $ONE_LOCATION/lib/mads/one_im_ssh.rb : The actual Information driver.
+   3. $ONE_LOCATION/lib/im_probes/* : sensors home. Little scripts or binaries that extract information from the remote hosts. Let's see a simple one to understand how they work:
+ * 適用於 Xen 的 IM File：
+   1. $ONE_LOCATION/etc/im_xen/im_xenrc : environment setup and bootstrap instructions
+   2. $ONE_LOCATION/etc/im_xen/im_xen.conf : This file defines the REMOTE_DIR and which sensors will be used 
+   3. $ONE_LOCATION/lib/im_probes/xen.rb : xen specific sensor.
+ * 範例 (適用於 Xen)
+{{{
+IM_MAD = [
+    name       = "im_xen",
+    executable = "bin/one_im_ssh",
+    arguments  = "im_xen/im_xen.conf",
+    default    = "im_xen/im_xen.conf" ]
+}}}