Oracle Flex ASM和Flex集群
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Oracle RAC 12c 引入了两个新概念：
中心节点： 和以前的版本一样，它们通过专用网络相互连接，并且可以直接访问共享存储。这些节点可以直接访问 Oracle 集群注册表 (OCR) 和表决磁盘 (VD)。
叶节点： 这些节点是轻型节点，彼此不互连，也不能像中心节点一样访问共享存储。每个叶节点与所连接的中心节点通信，并通过所连接的中心节点连接到集群。
此拓扑允许松散耦合的应用服务器与紧密耦合的数据库服务器形成一个集群。紧密耦合的服务器是中心服务器，与集群中的其他中心服务器共享数据库、OCR 和表决设备的存储并进行对等通信。松耦合的服务器是叶服务器，与集群中的单个中心服务器形成松散通信关联，不需要与集群中的其他中心服务器或叶服务器共享存储，也不需要与之进行对等通信，只与所关联的中心服务器通信。在 12.1.0.1 中，叶服务器旨在提高应用的高可用性和实现多层资源管理。
在 Oracle 12c 之前，对于要使用 ASM 的数据库实例来说，所有节点上的 ASM 实例必须已处于运行状态，才能启动数据库实例。如果 ASM 实例未运行，则意味着在存储级使用 ASM 的数据库实例不能启动。这实际上意味着无论采用何种技术（即 RAC、ASM 和共享存储），均不能访问数据库实例。
随着 Oracle 12c 的推出，一个名为 Oracle Flex ASM 的特性解除了上述限制，它的一个主要特性是故障切换到集群中的其他节点。本质上是一个中心和叶架构，Oracle Clusterware 通过一个替代 ASM 实例将故障节点的连接将无缝转移到另一个成员节点。在给定集群中运行的 ASM 实例数被称作 ASM 基数，默认值为 3。但此基数值可以使用 Clusterware 命令修改。
Oracle Flex 集群
从架构上来说，Oracle Flex 集群包括一个中心和叶架构，其中只有中心节点可以直接访问 Oracle 集群注册表 (OCR) 和表决磁盘 (VD)。但是应用可以通过叶节点访问数据库，而不必在叶节点上运行 ASM 实例。通过中心节点连接到数据库使得它对应用透明。
图 1：描绘了一个典型的 Oracle Flex 集群，包含 4 个叶节点和 2 个中心节点。简单地说，Oracle Flex 集群需要 Oracle Flex ASM。
Oracle Flex ASM 的实现方面
Oracle Flex ASM 可通过两种方式实现：
纯 12c Flex ASM（相同版本）
- Grid Infrasctructure (GI) 和数据库都运行在 Oracle 12c 上
Oracle 12c 之前的混合版本（不同版本）
- 和平常一样，ASM 实例将在每个节点上运行，Flex 配置支持 12c 之前的数据库。使用 ASM 磁盘组的兼容性参数管理各数据库实例之间的兼容性。这种方法的优点是，如果 Oracle 12c 数据库实例与一个 ASM 实例的连接断开，数据库连接将故障切换至其他服务器上的另一个 ASM 实例。通过将基数设置为 all 即可以实现这种故障切换。
使用 Oracle Flex ASM 的 Oracle RAC 12c
标准 Oracle Flex ASM 配置：
Oracle Flex ASM 配置上的 ASM 实例故障：
1. 登录 RAC 数据库实例 1 (rac1)
1 2 | [oracle@oel6-112-rac1 Desktop]$ hostname oel6-112-rac1.localdomain |
2. 检查 ASM 实例和 RAC 数据库实例的状态
1 2 3 4 5 | [oracle@oel6-112-rac1 Desktop]$ ps -ef | grep pmon oracle 3325 1 0 17:39 ? 00:00:00 asm_pmon_+ASM1 oracle 3813 1 0 17:40 ? 00:00:00 mdb_pmon_-MGMTDB oracle 5806 1 0 17:42 ? 00:00:00 ora_pmon_orcl1 oracle 6193 1 0 17:42 ? 00:00:00 apx_pmon_+APX1 |
3. 从实例 1 (rac1) 检查 RAC 数据库实例中 ASM 实例的状态
1 2 | [oracle@oel6-112-rac1 Desktop]$ srvctl status asm ASM is running on oel6-112-rac2,oel6-112-rac1 |
4. 在实例 1 (rac1) 中检查集群状态
1 2 3 4 | [oracle@oel6-112-rac1 Desktop]$ crsctl check cluster CRS-4537: Cluster Ready Services is online CRS-4529: Cluster Synchronization Services is online CRS-4533: Event Manager is online |
5. 用于检查 Oracle Flex ASM 是否启用的命令 (rac1)
1 2 3 4 5 | [oracle@oel6-112-rac1 Desktop]$ asmcmd ASMCMD> showclustermode ASM cluster : Flex mode enabled ASMCMD> showclusterstate Normal |
6. 用于更改 ASM 基数的命令 (rac1)
1 2 3 4 5 6 7 8 9 10 | [oracle@oel6-112-rac1 Desktop]$ srvctl status asm -detail ASM is running on oel6-112-rac2,oel6-112-rac1 ASM is enabled. [oracle@oel6-112-rac1 Desktop]$ srvctl config asm -detail ASM home: /u01/app/12.1.0/grid Password file: +DATA/orapwASM ASM listener: LISTENER ASM is enabled. ASM instance count: 3 Cluster ASM listener: ASMNET1LSNR_ASM |
7. 用于检查 Oracle Flex ASM 是否启用的命令 (rac2)
1 2 3 4 5 6 | [oracle@oel6-112-rac2 Desktop]$ asmcmd ASMCMD> showclustermode ASM cluster : Flex mode enabled ASMCMD> showclusterstate Normal ASMCMD> exit |
8. 如何更改 ASM 基数 (rac2)
1 2 3 4 5 6 7 | [oracle@oel6-112-rac2 Desktop]$ srvctl config asm -detail ASM home: /u01/app/12.1.0/grid Password file: +DATA/orapwASM ASM listener: LISTENER ASM is enabled. ASM instance count: 3 Cluster ASM listener: ASMNET1LSNR_ASM |
9. 在 RAC 数据库实例 1 (rac1) 中关闭 ASM 实例
1 | [oracle@oel6-112-rac1 Desktop]$ srvctl stop asm -node oel6-112-rac1 -stopoption abort -force |
10. 在 RAC 数据库实例 1 (rac1) 中检查 ASM 实例的状态
1 2 3 | [oracle@oel6-112-rac1 Desktop]$ srvctl status asm PRCR-1070 : Failed to check if resource ora.asm is registered Cannot communicate with crsd |
11. 在 RAC 数据库实例 1 (rac1) 中检查集群服务的状态
1 2 3 4 | [oracle@oel6-112-rac1 Desktop]$ crsctl check cluster CRS-4535: Cannot communicate with Cluster Ready Services CRS-4529: Cluster Synchronization Services is online CRS-4533: Event Manager is online |
12. 在实例 1 (rac1) 中检查 ASM 和 RAC 数据库的状态
1 2 3 4 | [oracle@oel6-112-rac1 Desktop]$ ps -ef | grep pmon oracle 3813 1 0 17:40 ? 00:00:00 mdb_pmon_-MGMTDB oracle 5806 1 0 17:42 ? 00:00:00 ora_pmon_orcl1 oracle 6193 1 0 17:42 ? 00:00:00 apx_pmon_+APX1 |
注： 在这里，数据库实例与特定节点中运行的特定 ASM 实例关联。如果因为某种原因，ASM 实例无法启动/服务关闭，数据库实例仍然可以启动，因为数据库实例将查找同一集群中运行的 ASM 实例。图 3 描绘了 Flex ASM 的高可用特性。
13. 在 RAC 数据库实例 1 (rac1) 中检查没有 ASM 实例的正在运行的 RAC 数据库实例的状态
1 2 3 4 | [oracle@oel6-112-rac1 Desktop]$ . oraenv ORACLE_SID = [orcl1] ? orcl1 ORACLE_HOME = [/home/oracle] ? /u01/app/oracle/product/12.1.0/db_1 The Oracle base remains unchanged with value /u01/app/oracle |
14. 从 RAC 数据库实例 1 (rac1) 登录数据库实例
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | [oracle@oel6-112-rac1 Desktop]$ sqlplus /nolog SQL*Plus: Release 12.1.0.1.0 Production on Wed Sep 25 18:24:36 2013 Copyright (c) 1982, 2013, Oracle. All rights reserved. SQL> connect sys/oracle@orcl as sysdba Connected. SQL> select instance_name,instance_number from gv$instance; INSTANCE_NAME INSTANCE_NUMBER ------------------------------------------- orcl2 2 orcl1 1 SQL> select instance_name,instance_number from v$instance; INSTANCE_NAME INSTANCE_NUMBER ------------------------------------------- orcl2 2 SQL> connect sys/oracle@orcl as sysdba Connected. SQL> select instance_name,instance_number from gv$instance; INSTANCE_NAME INSTANCE_NUMBER ------------------------------------------- orcl1 1 |
15. 从 RAC 数据库实例 1 (rac1) 连接到 RAC 数据库实例 2 (rac2) 的 ASM 实例
1 2 3 4 5 6 7 8 9 | [oracle@oel6-112-rac1 Desktop]$ . oraenv ORACLE_SID = [orcl1] ? +ASM2 ORACLE_HOME = [/home/oracle] ? /u01/app/12.1.0/grid The Oracle base remains unchanged with value /u01/app/oracle [oracle@oel6-112-rac1 Desktop]$ asmcmd --privilege sysasm --inst +ASM2 ASMCMD> lsdg State Type Rebal Sector Block AU Total_MB Free_MB Req_mir_free_MB Usable_file_MB Offline_disks Voting_files Name MOUNTED EXTERN N 512 4096 1048576 15342 4782 0 4782 0 Y DATA/ ASMCMD> |
总结： 数据库实例使用一个专用 ASM 实例，我们强制该 ASM 实例被停止工作来模拟故障，因此数据库实例重新连接到另一节点（在本示例中为节点 2 (rac2)）上的现有 ASM 实例。
Oracle Database 11.2 或早期版本
如前面针对 Oracle 12c 的介绍所述，ASM 与数据库实例的关联本质上是特定的。这意味着，如果 ASM 实例无法启动，该节点/ASM 中的关联数据库实例也无法启动，从而导致该数据库无法访问。
1. 登录 RAC 数据库实例 1 (rac1)
1 2 3 | login as: oracle oracle@192.168.xx.xx's password: Last login: Fri Sep 27 06:05:44 2013 |
2. 检查 ASM 实例和 RAC 数据库实例的状态：
1 2 3 | [oracle@rac1 ~]$ ps -ef | grep pmon oracle 3053 1 0 05:56 ? 00:00:00 asm_pmon_+ASM1 oracle 3849 1 0 05:57 ? 00:00:00 ora_pmon_flavia1 |
3. 在 RAC 数据库实例 1 (rac1) 中检查 ASM 实例的状态
1 2 | [oracle@rac1 ~]$ srvctl status asm ASM is running on rac2,rac1 |
4. 在 RAC 数据库实例 1 (rac1) 中检查集群的状态
1 2 3 4 | [oracle@rac1 ~]$ crsctl check cluster CRS-4537: Cluster Ready Services is online CRS-4529: Cluster Synchronization Services is online CRS-4533: Event Manager is online |
5. 在 RAC 数据库实例 1 (rac1) 中停止 ASM 实例
1 | [oracle@rac1 ~]$ srvctl stop asm -n rac1 -o abort -f |
6. 在 RAC 数据库实例 1 (rac1) 中检查 ASM 实例的状态
1 2 | [oracle@rac1 ~]$ srvctl status asm ASM is running on rac2 |
7. 检查 ASM 实例和 RAC 数据库实例 (rac1) 的状态
1 2 | [oracle@rac1 ~]$ ps -ef | grep pmon oracle 7885 5795 0 06:20 pts/0 00:00:00 grep pmon |
总结： 数据库实例与 ASM 实例强关联。如果 ASM 实例发生故障，同一节点上的数据库实例也会发生故障。
为何使用 Oracle Flex ASM
- Oracle Flex ASM 支持 Oracle Database 12c 客户端使用更大的 LUN 大小。
- 支持的最大磁盘组数为 511。
- 可以灵活地重命名磁盘组中的 ASM 磁盘。
- ASM 实例的补丁级验证
- 滚动补丁期间禁用补丁级验证
- 复制物理元数据
Oracle Flex ASM 中的网络增强
- 在早期版本中，集群要求：
- 一个供客户端应用访问的公共网络
- 一个或多个用于集群内节点间通信（包括 ASM 通信）的专用网络
- Flex ASM 增加 ASM 网络，可用于 ASM 与其客户端之间的通信，以便隔离和分流 ASM 通信。
部署 Flex ASM
下面是 Flex ASM 安装程序的屏幕截图。
选择选项“Advanced Installation”
有三个存储选项：
标准 ASM
12c 之前的 ASM 配置模式
Oracle Flex ASM
推荐
非 ASM 托管的存储
管理 Flex ASM：
无需 Flex ASM 特定的实例参数
ASM 服务器实例使用自动内存管理 (AMM)
Oracle 18c Flex ASM 功能测试
1. Flex ASM说明
Oracle 在12c 中引入Oracle Flex ASM特性， 其可以使ASM实例和数据库实例在不同的节点上运行，而不是之前的ASM实例必须和数据库实例运行在同一个节点上。也就是说当某个节点上的ASM 实例挂掉后，其上的数据库实例还可以正常运行。
在Oracle 12c中，在创建数据库的时候还需要选择是否启用Oracle Flex 集群和Flex ASM， 但是到了18c中，默认就是Flex 集群和Flex ASM，不再需要选择。 下图是12c中使用ASMCA工具将普通ASM 实例转换成Flex ASM。
2. Flex ASM 测试
因为在Oracle 18c 中默认就是Flex ASM。 所以我们这里直接在RAC 环境上测试该功能。
2.1 当前RAC 环境
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 | [grid@www.cndba.cn ~]$ crsctl stat res -t -------------------------------------------------------------------------------- Name Target State Server State details -------------------------------------------------------------------------------- Local Resources -------------------------------------------------------------------------------- ora.ASMNET1LSNR_ASM.lsnr ONLINE ONLINE rac1 STABLE ONLINE ONLINE rac2 STABLE ora.DATA.dg ONLINE ONLINE rac1 STABLE ONLINE ONLINE rac2 STABLE ora.LISTENER.lsnr ONLINE ONLINE rac1 STABLE ONLINE ONLINE rac2 STABLE ora.MGMT.GHCHKPT.advm OFFLINE OFFLINE rac1 STABLE OFFLINE OFFLINE rac2 STABLE ora.MGMT.dg ONLINE ONLINE rac1 STABLE ONLINE ONLINE rac2 STABLE ora.OCR.dg ONLINE ONLINE rac1 STABLE ONLINE ONLINE rac2 STABLE ora.helper OFFLINE OFFLINE rac1 IDLE,STABLE OFFLINE OFFLINE rac2 IDLE,STABLE ora.mgmt.ghchkpt.acfs OFFLINE OFFLINE rac1 STABLE OFFLINE OFFLINE rac2 STABLE ora.net1.network ONLINE ONLINE rac1 STABLE ONLINE ONLINE rac2 STABLE ora.ons ONLINE ONLINE rac1 STABLE ONLINE ONLINE rac2 STABLE ora.proxy_advm ONLINE ONLINE rac1 STABLE ONLINE ONLINE rac2 STABLE -------------------------------------------------------------------------------- Cluster Resources -------------------------------------------------------------------------------- ora.LISTENER_SCAN1.lsnr 1 ONLINE ONLINE rac2 STABLE ora.MGMTLSNR 1 ONLINE ONLINE rac2 169.254.11.39 192.16 8.56.101,STABLE ora.asm 1 ONLINE ONLINE rac1 Started,STABLE 2 ONLINE ONLINE rac2 Started,STABLE 3 OFFLINE OFFLINE STABLE ora.cndba.db 1 ONLINE ONLINE rac2 Open,HOME=/u01/app/o racle/product/18.3.0 /db_1,STABLE 2 ONLINE ONLINE rac1 Open,HOME=/u01/app/o racle/product/18.3.0 /db_1,STABLE ora.cvu 1 ONLINE ONLINE rac2 STABLE ora.mgmtdb 1 ONLINE ONLINE rac2 Open,STABLE ora.qosmserver 1 ONLINE ONLINE rac2 STABLE ora.rac1.vip 1 ONLINE ONLINE rac1 STABLE ora.rac2.vip 1 ONLINE ONLINE rac2 STABLE ora.rhpserver 1 OFFLINE OFFLINE STABLE ora.scan1.vip 1 ONLINE ONLINE rac2 STABLE -------------------------------------------------------------------------------- [grid@www.cndba.cn ~]$ [grid@www.cndba.cn ~]$ srvctl -version srvctl version: 18.0.0.0.0 [grid@www.cndba.cn ~]$ crsctl check cluster CRS-4537: Cluster Ready Services is online CRS-4529: Cluster Synchronization Services is online CRS-4533: Event Manager is online [grid@rac1 ~]$ |
2.2 查看Flex ASM中实例信息
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | [grid@www.cndba.cn ~]$ asmcmd showclustermode ASM cluster : Flex mode enabled - Direct Storage Access [grid@www.cndba.cn ~]$ asmcmd showclusterstate Normal [grid@www.cndba.cn ~]$ [grid@www.cndba.cn ~]$ srvctl status asm -detail ASM is running on rac1,rac2 ASM is enabled. ASM instance +ASM1 is running on node rac1 Number of connected clients: 3 Client names: +APX1:+APX:rac cndba1:cndba:rac rac1:_OCR:rac ASM instance +ASM2 is running on node rac2 Number of connected clients: 4 Client names: +APX2:+APX:rac -MGMTDB:_mgmtdb:rac cndba2:cndba:rac rac2:_OCR:rac [grid@www.cndba.cn ~]$ [grid@www.cndba.cn ~]$ srvctl config asm -detail ASM home: <CRS home> Password file: +OCR/orapwASM Backup of Password file: ASM listener: LISTENER ASM is enabled. ASM is individually enabled on nodes: ASM is individually disabled on nodes: ASM instance count: 3 Cluster ASM listener: ASMNET1LSNR_ASM [grid@www.cndba.cn ~]$ |
2.3 模拟ASM 实例故障
1 2 3 4 5 6 7 8 9 10 | SQL>select instance_name,instance_number from gv$instance; INSTANCE_NAME INSTANCE_NUMBER -------------------------------- --------------- cndba1 1 cndba2 2 [grid@www.cndba.cn ~]$ srvctl status database -d cndba -detail Instance cndba1 is running on node rac1 Instance cndba1 is connected to ASM instance +ASM1 Instance cndba2 is running on node rac2 Instance cndba2 is connected to ASM instance +ASM2 |
关闭节点1上的ASM 实例
1 2 3 4 5 6 7 8 9 10 11 | [grid@www.cndba.cn ~]$ ps -ef|grep pmon grid 8425 12500 0 09:00 pts/2 00:00:00 grep --color=auto pmon oracle 15875 1 0 06:19 ? 00:00:00 ora_pmon_cndba1 grid 27886 1 0 05:21 ? 00:00:00 asm_pmon_+ASM1 grid 29346 1 0 05:21 ? 00:00:00 apx_pmon_+APX1 [grid@www.cndba.cn ~]$ srvctl stop asm -node rac1 -stopoption abort -force [grid@www.cndba.cn ~]$ ps -ef|grep pmon grid 8620 12500 0 09:00 pts/2 00:00:00 grep --color=auto pmon oracle 15875 1 0 06:19 ? 00:00:00 ora_pmon_cndba1 grid 29346 1 0 05:21 ? 00:00:00 apx_pmon_+APX1 [grid@www.cndba.cn ~]$ |
此时ASM 实例只在节点2上运行：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | [grid@www.cndba.cn ~]$ srvctl status asm ASM is running on rac2 [grid@www.cndba.cn ~]$ srvctl status database -d cndba -detail Instance cndba1 is running on node rac1 Instance cndba1 is connected to ASM instance +ASM2 Instance cndba2 is running on node rac2 Instance cndba2 is connected to ASM instance +ASM2 [grid@www.cndba.cn ~]$ srvctl status asm -detail ASM is running on rac2 ASM is enabled. ASM instance +ASM2 is running on node rac2 Number of connected clients: 6 Client names: +APX1:+APX:rac +APX2:+APX:rac -MGMTDB:_mgmtdb:rac cndba1:cndba:rac cndba2:cndba:rac rac2:_OCR:rac [grid@www.cndba.cn ~]$ |
我们可以看到+ASM2上也运行这节点1上的db 实例。
但是节点1上的数据库实例正常运行：
1 2 3 4 5 | SQL> select instance_name,instance_number from gv$instance; INSTANCE_NAME INSTANCE_NUMBER -------------------------------- --------------- cndba1 1 cndba2 2 |
启动节点1上的ASM实例，又恢复原状：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | [grid@www.cndba.cn ~]$ srvctl start asm -node rac1 [grid@www.cndba.cn ~]$ srvctl status asm -detail ASM is running on rac1,rac2 ASM is enabled. ASM instance +ASM1 is running on node rac1 Number of connected clients: 3 Client names: +APX1:+APX:rac cndba1:cndba:rac rac1:_OCR:rac ASM instance +ASM2 is running on node rac2 Number of connected clients: 4 Client names: +APX2:+APX:rac -MGMTDB:_mgmtdb:rac cndba2:cndba:rac rac2:_OCR:rac [grid@www.cndba.cn ~]$ [grid@www.cndba.cn ~]$ srvctl status database -d cndba -detail Instance cndba1 is running on node rac1 Instance cndba1 is connected to ASM instance +ASM1 Instance cndba2 is running on node rac2 Instance cndba2 is connected to ASM instance +ASM2 |
通过实验，可以验证任意一个节点的ASM实例的意外关闭/启动，都不会影响该节点上的数据库状态，这极大的增强了RAC的高可用性。
Flex ASM的配置和转换
从12c开始，推出了Flex ASM特性，允许RAC节点访问远程节点的ASM实例，而自身无需运行ASM实例。
一般在Flex集群，中心节点运行ASM实例，叶节点远程访问中心节点的ASM实例。
但是中心节点也可以不运行ASM实例而访问其他节点的ASM实例；另外，标准集群也可以启用Flex ASM。
由于有通过网络远程访问ASM实例的状况，因此也形成了ASM网络，ASM网络可与Private网络共用，即ASM&Private网络，可在安装界面指定。
确认当前ASM状态
点击( 此处 )折叠或打开
- $ asmcmd showclustermode
- ASM cluster : Flex mode disabled
以上说明是标准ASM
运行asmca，转换ASM为Flex ASM，以下是部分步骤截图
ASM的subnet与Public不同，将不能使用与Public相同的端口号
以root用户运行上图所示的脚本，将对集群内所有节点重启CRS
最后，确认当前集群模式
点击( 此处 )折叠或打开
$ asmcmd showclustermode
ASM cluster : Flex mode enabled
#后两项是Flex ASM才有的
$ srvctl config asm
ASM home:
Password file: +OCRV/orapwASM
ASM listener: LISTENER
ASM instance count: ALL
Cluster ASM listener: ASMNET1LSNR_ASM
查看ASM监听器
点击( 此处 )折叠或打开
- $ lsnrctl status ASMNET1LSNR_ASM
- LSNRCTL for Linux : Version 12 . 1 . . 2 . 0 - Production on 01 - JUN - 2016 15 : 08 : 11
- Copyright ( c ) 1991 , 2014 , Oracle . All rights reserved .
- Connecting to ( DESCRIPTION = ( ADDRESS = ( PROTOCOL = IPC ) ( KEY = ASMNET1LSNR_ASM ) ) )
- STATUS of the LISTENER
- - - - - - - - - - - - - - - - - - - - - - - - -
- Alias ASMNET1LSNR_ASM
- Version TNSLSNR for Linux : Version 12 . 1 . . 2 . 0 - Production
- Start Date 01 - JUN - 2016 15 : 02 : 46
- Uptime 0 days 0 hr . 5 min . 24 sec
- Trace Level off
- Security ON : Local OS Authentication
- SNMP OFF
- Listener Parameter File /u01/app/12 . 1 . 0/grid/network/admin/listener . ora
- Listener Log File /u01/app/grid/diag/tnslsnr/node2/asmnet1lsnr_asm/alert/log . xml
- Listening Endpoints Summary . . .
- ( DESCRIPTION = ( ADDRESS = ( PROTOCOL = ipc ) ( KEY = ASMNET1LSNR_ASM ) ) )
- ( DESCRIPTION = ( ADDRESS = ( PROTOCOL = tcp ) ( HOST = 10 . 1 . 1 . 2 ) ( PORT = 1522 ) ) )
- Services Summary . . .
- Service "+ASM" has 2 instance ( s ) .
- Instance "+ASM1" , status READY , has 1 handler ( s ) for this service . . .
- Instance "+ASM2" , status READY , has 2 handler ( s ) for this service . . .
- The command completed successfully
12c 如何将Standard ASM转化为Flex ASM
什么是Flex ASM?
我们知道在12c之前的版本里，ASM实例需要在每一个节点运行，而ASM 的客户端(Database，ACFS，ADVM)只可以访问本地的ASM 实例。如果使用了Oracle Flex ASM，情况就不一样了，ASM的客户端就可以通过ASM网络访问远程的ASM实例。如果一个运行ASM实例的节点宕掉，Oracle集群会在另外一个节点上启动一个新的ASM实例以此维持它的节点基数(Cardinality)。 同样，如果一个12c数据库实例连接了某一个ASM 实例，而这个ASM 实例crash掉或者实例运行出错，这个数据库的实例会尝试重新连接在另一个节点的一个已经存在的ASM实例，这就是 Oracle Flex ASM。
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Flex Cluster和Flex ASM的区别
Flex Cluster需要Flex ASM的支持
Flex ASM可以在StandardCluster和Flex Cluster运行
如何控制ASM实例的个数
1 2 3 4 5 6 7 8 9 10 | [orgrid@ohs1 ~]$ srvctl modify asm -count 2 [orgrid@ohs1 ~]$ srvctl config asm ASM home: <CRS home> Password file: +SYSTEMDG/orapwASM ASM listener: LISTENER ASM instance count: 2 Cluster ASM listener: ASMNET1LSNR_ASM [orgrid@ohs1 ~]$ [orgrid@ohs1 ~]$ srvctl modify asm -count 1 PRCA-1123 : The specified ASM cardinality 1 is less than the minimum cardinality of 2. |
注意：ASM实例至少的有2个实例，这样不至于单点故障
Flex ASM和Standard ASM的转化
我们可以把Standard ASM转化为Flex ASM，但这个转化是不可逆的。这样做的目的可能是为了推广这个特性，这个特性确实不错
如果没有使用Flex ASM，不设置SID会出现连接到空实例，但在Flex ASM情况下，会随机选择一个
Standard ASM输出
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | [orgrid@ohs1 ~]$ asmcmd Connected to an idle instance. ASMCMD> exit [orgrid@ohs1 ~]$ export ORACLE_SID=+ASM1 [orgrid@ohs1 ~]$ asmcmd ASMCMD> showclustermode ASM cluster : Flex mode disabled ASMCMD> showclusterstate Normal ASMCMD> lsdsk Path ORCL:ASMDISK1 ORCL:ASMDISK2 ORCL:ASMDISK3 ORCL:ASMDISK4 ASMCMD> lsattr -G systemdg -l Name Value access_control.enabled FALSE access_control.umask 066 au_size 1048576 cell.smart_scan_capable FALSE compatible.asm 12.1.0.0.0 compatible.rdbms 10.1.0.0.0 content.check FALSE content.type data disk_repair_time 3.6h failgroup_repair_time 24.0h idp.boundary auto idp.type dynamic phys_meta_replicated true sector_size 512 thin_provisioned FALSE ASMCMD> ASMCMD> exit |
Flex ASM输出
1 2 3 4 5 6 7 | [orgrid@ohs1 ~]$ echo $ORACLE_SID [orgrid@ohs1 ~]$ asmcmd ASMCMD> showclustermode ASM cluster : Flex mode enabled ASMCMD> showclusterstate Normal ASMCMD> |
asmca帮助信息
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | [orgrid@ohs1 ~]$ [orgrid@ohs1 ~]$ asmca -h asmca [-silent] [-sysAsmPassword <SYS user password>] [-asmsnmpPassword <ASM monitor password>] {<command> <options>} Please refer to the manual for details. You can enter one of the following commands: 1. Configure an ASM instance by specifying the following command and parameters: -configureASM [-sysAsmPassword <SYS user password>] [-asmsnmpPassword <ASM monitor password>] [(-param <paramname=paramvalue>)] -diskString <disk discovery path> (-diskGroupName <disk group name> (-disk <disk path> [-diskName <disk name>] | -diskList <comma separated disk list> [-diskSize <disk size in MB>] [-failuregroup <failure group name>] [-force|-noforce] [-quorum|-noquorum]) [-redundancy <HIGH|NORMAL|EXTERNAL>] [-au_size <2^0 ~ 2^6 (1 ~ 64)>] [-compatible.asm <10.1 ~ 11.2>] [-compatible.rdbms <10.1 ~ 11.2>] [-compatible.advm <11.2>]) 2. Upgrade an existing ASM instance by specifying the following command and parameters: -upgradeASM [-asmsnmpPassword <ASM monitor password>] 3. Configure ASM parameters by specifying the following command and parameters: -configureParameter (-param <paramname=paramvalue>) [-sysAsmPassword <SYS user password>] 4. Create Disk Groups by specifying the following command and parameters: -createDiskGroup [-diskString <disk discovery path>] (-diskGroupName <disk group name> (-disk <disk path> [-diskName <disk name>] | -diskList <comma separated disk list> [-diskSize <disk size in MB>] [-failuregroup <failure group name>] [-force|-noforce] [-quorum|-noquorum]) [-redundancy <HIGH|NORMAL|EXTERNAL>] [-au_size <2^0 ~ 2^6 (1 ~ 64)>] [-compatible.asm <10.1 ~ 11.2>] [-compatible.rdbms <10.1 ~ 11.2>] [-compatible.advm <11.2>]) [-sysAsmPassword <SYS user password>] 5. Add disks to Disk Groups by specifying the following command and parameters: -addDisk [-diskString <disk discovery path>] (-diskGroupName <disk group name> (-disk <disk path> [-diskName <disk name>] | -diskList <comma separated disk list> [-diskSize <disk size in MB>] [-failuregroup <failure group name>] [-force|-noforce] [-quorum|-noquorum]) [-sysAsmPassword <SYS user password>] 6. Create volumes by specifying the following command and parameters: -createVolume (-volumeName <ASM volume name> -volumeDiskGroup <ASM disk group name for the volume> -volumeSizeGB <ASM volume size in GB> [-volumeRedundancy <INHERIT|MIRROR|HIGH|UNPROTECTED>]) [-sysAsmPassword <SYS user password>] 7. Create ASM Cluster File Systems by specifying the following command and parameters: -createACFS (-acfsVolumeDevice <ASM volume device>) (-acfsMountPoint <existing host file system path>) [-acfsUserName <ACFS User Name>] [-acfsGroupName <ACFS Group Name>] [-sysAsmPassword <SYS user password>] 8. Delete ASM instance(s) by specifying the following command and parameters: -deleteASM [-force] [-dropDiskGroups] [-sysAsmPassword <SYS user password>] |
\9. Convert Standard ASM into Oracle Flex ASM by specifying the following command and parameters:
-convertToFlexASM
-asmNetworks <comma separated ASM Networks each network of the form interface name/subnet>
-asmListenerPort
[orgrid@ohs1 ~]$
借助asmca生成转化为Flex ASM的脚本converttoFlexASM.sh
[orgrid@ohs1 ~]$ asmca -silent -convertToFlexASM -asmNetworks eth1/172.16.0.0 -asmListenerPort 10010
1 2 | To complete ASM conversion, run the following script as privileged user in local node. /pgold/orgrid/grid_base/cfgtoollogs/asmca/scripts/converttoFlexASM.sh [orgrid@ohs1 ~]$ |
converttoFlexASM.sh 脚本内容
[orgrid@ohs1 ~]$ cat /pgold/orgrid/grid_base/cfgtoollogs/asmca/scripts/converttoFlexASM.sh
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | #!/bin/sh cd /pgold/orgrid/grid_base/cfgtoollogs/asmca/scripts /pgold/orgrid/oracle/product/121/srvm/admin/srvmhelper -updateDepASM if [ "$?" != "0" ]; then echo "Error updating ASM resource dependencies" exit 1 fi for node in ohs1 ohs2 ohs3 do /pgold/orgrid/oracle/product/121/bin/crsctl stop cluster -n $node if [ "$?" != "0" ]; then echo "Error stopping Oracle Grid Infrastructure in node $node" exit 1 fi /pgold/orgrid/oracle/product/121/bin/crsctl start cluster -n $node stat=1 cmd="/pgold/orgrid/oracle/product/121/bin/crsctl status server $node" while [ $stat = 1 ] do sleep 5 op=`$cmd` op=`echo $op | /bin/cut -d' ' -f2 | /bin/cut -d'=' -f2` if [ "$op" = "ONLINE" ] then stat=0 echo "Oracle Grid Infrastructure restarted in node $node" fi done if [ "$node" = ohs1 ]; then for lsnr in ASMNET1LSNR_ASM do /pgold/orgrid/oracle/product/121/bin/srvctl start listener -listener $lsnr lsnrret=$? if [ "$lsnrret" = "2" ]; then echo "ASM listener $lsnr running already" elif [ "$lsnrret" != "0" ]; then echo "Error starting ASM listener $lsnr" exit 1 fi done fi done |
用root执行 converttoFlexASM.sh 输出
[orgrid@ohs1 ~]$ /pgold/orgrid/grid_base/cfgtoollogs/asmca/scripts/converttoFlexASM.sh
CRS-4563: Insufficient user privileges.
CRS-4000: Command Stop failed, or completed with errors.
Error stopping Oracle Grid Infrastructure in node ohs1
[orgrid@ohs1 ~]$ exit
logout
[root@ohs1 ~]# /pgold/orgrid/grid_base/cfgtoollogs/asmca/scripts/converttoFlexASM.sh
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 | CRS-2673: Attempting to stop 'ora.crsd' on 'ohs1' CRS-2790: Starting shutdown of Cluster Ready Services-managed resources on 'ohs1' CRS-2673: Attempting to stop 'ora.cvu' on 'ohs1' CRS-2673: Attempting to stop 'ora.mgmtdb' on 'ohs1' CRS-2673: Attempting to stop 'ora.gns' on 'ohs1' CRS-2673: Attempting to stop 'ora.LISTENER_SCAN3.lsnr' on 'ohs1' CRS-2673: Attempting to stop 'ora.oc4j' on 'ohs1' CRS-2673: Attempting to stop 'ora.LISTENER.lsnr' on 'ohs1' CRS-2673: Attempting to stop 'ora.FRA_PGOLD.dg' on 'ohs1' CRS-2673: Attempting to stop 'ora.SYSTEMDG.dg' on 'ohs1' CRS-2673: Attempting to stop 'ora.DATA_PGOLD.dg' on 'ohs1' CRS-2677: Stop of 'ora.cvu' on 'ohs1' succeeded CRS-2672: Attempting to start 'ora.cvu' on 'ohs3' CRS-2677: Stop of 'ora.FRA_PGOLD.dg' on 'ohs1' succeeded CRS-2676: Start of 'ora.cvu' on 'ohs3' succeeded CRS-2677: Stop of 'ora.SYSTEMDG.dg' on 'ohs1' succeeded CRS-2677: Stop of 'ora.DATA_PGOLD.dg' on 'ohs1' succeeded CRS-2677: Stop of 'ora.LISTENER_SCAN3.lsnr' on 'ohs1' succeeded CRS-2673: Attempting to stop 'ora.scan3.vip' on 'ohs1' CRS-2677: Stop of 'ora.LISTENER.lsnr' on 'ohs1' succeeded CRS-2673: Attempting to stop 'ora.ohs1.vip' on 'ohs1' CRS-2677: Stop of 'ora.scan3.vip' on 'ohs1' succeeded CRS-2672: Attempting to start 'ora.scan3.vip' on 'ohs2' CRS-2677: Stop of 'ora.ohs1.vip' on 'ohs1' succeeded CRS-2672: Attempting to start 'ora.ohs1.vip' on 'ohs3' CRS-2677: Stop of 'ora.mgmtdb' on 'ohs1' succeeded CRS-2673: Attempting to stop 'ora.MGMTLSNR' on 'ohs1' CRS-2677: Stop of 'ora.MGMTLSNR' on 'ohs1' succeeded CRS-2672: Attempting to start 'ora.MGMTLSNR' on 'ohs2' CRS-2677: Stop of 'ora.gns' on 'ohs1' succeeded CRS-2673: Attempting to stop 'ora.gns.vip' on 'ohs1' CRS-2677: Stop of 'ora.gns.vip' on 'ohs1' succeeded CRS-2672: Attempting to start 'ora.gns.vip' on 'ohs2' CRS-2676: Start of 'ora.gns.vip' on 'ohs2' succeeded CRS-2672: Attempting to start 'ora.gns' on 'ohs2' CRS-2677: Stop of 'ora.oc4j' on 'ohs1' succeeded CRS-2672: Attempting to start 'ora.oc4j' on 'ohs3' CRS-2676: Start of 'ora.MGMTLSNR' on 'ohs2' succeeded CRS-2672: Attempting to start 'ora.mgmtdb' on 'ohs2' CRS-2676: Start of 'ora.gns' on 'ohs2' succeeded CRS-2676: Start of 'ora.scan3.vip' on 'ohs2' succeeded CRS-2672: Attempting to start 'ora.LISTENER_SCAN3.lsnr' on 'ohs2' CRS-2676: Start of 'ora.oc4j' on 'ohs3' succeeded CRS-2676: Start of 'ora.mgmtdb' on 'ohs2' succeeded CRS-2676: Start of 'ora.LISTENER_SCAN3.lsnr' on 'ohs2' succeeded CRS-2676: Start of 'ora.ohs1.vip' on 'ohs3' succeeded CRS-2673: Attempting to stop 'ora.ons' on 'ohs1' CRS-2677: Stop of 'ora.ons' on 'ohs1' succeeded CRS-2673: Attempting to stop 'ora.net1.network' on 'ohs1' CRS-2677: Stop of 'ora.net1.network' on 'ohs1' succeeded CRS-2792: Shutdown of Cluster Ready Services-managed resources on 'ohs1' has completed CRS-2677: Stop of 'ora.crsd' on 'ohs1' succeeded CRS-2673: Attempting to stop 'ora.ctssd' on 'ohs1' CRS-2673: Attempting to stop 'ora.evmd' on 'ohs1' CRS-2673: Attempting to stop 'ora.storage' on 'ohs1' CRS-2677: Stop of 'ora.storage' on 'ohs1' succeeded CRS-2673: Attempting to stop 'ora.asm' on 'ohs1' CRS-2677: Stop of 'ora.ctssd' on 'ohs1' succeeded CRS-2677: Stop of 'ora.evmd' on 'ohs1' succeeded CRS-2677: Stop of 'ora.asm' on 'ohs1' succeeded CRS-2673: Attempting to stop 'ora.cluster_interconnect.haip' on 'ohs1' CRS-2677: Stop of 'ora.cluster_interconnect.haip' on 'ohs1' succeeded CRS-2673: Attempting to stop 'ora.cssd' on 'ohs1' CRS-2677: Stop of 'ora.cssd' on 'ohs1' succeeded CRS-2672: Attempting to start 'ora.evmd' on 'ohs1' CRS-2672: Attempting to start 'ora.cssdmonitor' on 'ohs1' CRS-2676: Start of 'ora.cssdmonitor' on 'ohs1' succeeded CRS-2672: Attempting to start 'ora.cssd' on 'ohs1' CRS-2672: Attempting to start 'ora.diskmon' on 'ohs1' CRS-2676: Start of 'ora.diskmon' on 'ohs1' succeeded CRS-2676: Start of 'ora.evmd' on 'ohs1' succeeded CRS-2676: Start of 'ora.cssd' on 'ohs1' succeeded CRS-2672: Attempting to start 'ora.ctssd' on 'ohs1' CRS-2672: Attempting to start 'ora.cluster_interconnect.haip' on 'ohs1' CRS-2676: Start of 'ora.ctssd' on 'ohs1' succeeded CRS-2676: Start of 'ora.cluster_interconnect.haip' on 'ohs1' succeeded CRS-2672: Attempting to start 'ora.asm' on 'ohs1' CRS-2676: Start of 'ora.asm' on 'ohs1' succeeded CRS-2672: Attempting to start 'ora.storage' on 'ohs1' CRS-2676: Start of 'ora.storage' on 'ohs1' succeeded CRS-2672: Attempting to start 'ora.crsd' on 'ohs1' CRS-2676: Start of 'ora.crsd' on 'ohs1' succeeded Oracle Grid Infrastructure restarted in node ohs1 PRCC-1014 : ASMNET1LSNR_ASM was already running PRCR-1004 : Resource ora.ASMNET1LSNR_ASM.lsnr is already running PRCR-1079 : Failed to start resource ora.ASMNET1LSNR_ASM.lsnr CRS-5702: Resource 'ora.ASMNET1LSNR_ASM.lsnr' is already running on 'ohs3' CRS-5702: Resource 'ora.ASMNET1LSNR_ASM.lsnr' is already running on 'ohs2' CRS-5702: Resource 'ora.ASMNET1LSNR_ASM.lsnr' is already running on 'ohs1' ASM listener ASMNET1LSNR_ASM running already CRS-2673: Attempting to stop 'ora.crsd' on 'ohs2' CRS-2790: Starting shutdown of Cluster Ready Services-managed resources on 'ohs2' CRS-2673: Attempting to stop 'ora.mgmtdb' on 'ohs2' CRS-2673: Attempting to stop 'ora.LISTENER_SCAN3.lsnr' on 'ohs2' CRS-2673: Attempting to stop 'ora.ASMNET1LSNR_ASM.lsnr' on 'ohs2' CRS-2673: Attempting to stop 'ora.SYSTEMDG.dg' on 'ohs2' CRS-2673: Attempting to stop 'ora.LISTENER.lsnr' on 'ohs2' CRS-2673: Attempting to stop 'ora.DATA_PGOLD.dg' on 'ohs2' CRS-2673: Attempting to stop 'ora.FRA_PGOLD.dg' on 'ohs2' CRS-2677: Stop of 'ora.SYSTEMDG.dg' on 'ohs2' succeeded CRS-2677: Stop of 'ora.DATA_PGOLD.dg' on 'ohs2' succeeded CRS-2677: Stop of 'ora.FRA_PGOLD.dg' on 'ohs2' succeeded CRS-2677: Stop of 'ora.LISTENER_SCAN3.lsnr' on 'ohs2' succeeded CRS-2673: Attempting to stop 'ora.scan3.vip' on 'ohs2' CRS-2677: Stop of 'ora.ASMNET1LSNR_ASM.lsnr' on 'ohs2' succeeded CRS-2677: Stop of 'ora.LISTENER.lsnr' on 'ohs2' succeeded CRS-2673: Attempting to stop 'ora.ohs2.vip' on 'ohs2' CRS-2677: Stop of 'ora.scan3.vip' on 'ohs2' succeeded CRS-2672: Attempting to start 'ora.scan3.vip' on 'ohs1' CRS-2677: Stop of 'ora.ohs2.vip' on 'ohs2' succeeded CRS-2672: Attempting to start 'ora.ohs2.vip' on 'ohs3' CRS-2677: Stop of 'ora.mgmtdb' on 'ohs2' succeeded CRS-2673: Attempting to stop 'ora.MGMTLSNR' on 'ohs2' CRS-2677: Stop of 'ora.MGMTLSNR' on 'ohs2' succeeded CRS-2672: Attempting to start 'ora.MGMTLSNR' on 'ohs3' CRS-2676: Start of 'ora.MGMTLSNR' on 'ohs3' succeeded CRS-2672: Attempting to start 'ora.mgmtdb' on 'ohs3' CRS-2676: Start of 'ora.scan3.vip' on 'ohs1' succeeded CRS-2672: Attempting to start 'ora.LISTENER_SCAN3.lsnr' on 'ohs1' CRS-2676: Start of 'ora.LISTENER_SCAN3.lsnr' on 'ohs1' succeeded CRS-2673: Attempting to stop 'ora.gns' on 'ohs2' CRS-2676: Start of 'ora.ohs2.vip' on 'ohs3' succeeded CRS-2676: Start of 'ora.mgmtdb' on 'ohs3' succeeded CRS-2677: Stop of 'ora.gns' on 'ohs2' succeeded CRS-2673: Attempting to stop 'ora.gns.vip' on 'ohs2' CRS-2677: Stop of 'ora.gns.vip' on 'ohs2' succeeded CRS-2672: Attempting to start 'ora.gns.vip' on 'ohs3' CRS-2676: Start of 'ora.gns.vip' on 'ohs3' succeeded CRS-2672: Attempting to start 'ora.gns' on 'ohs3' CRS-2676: Start of 'ora.gns' on 'ohs3' succeeded CRS-2673: Attempting to stop 'ora.ons' on 'ohs2' CRS-2677: Stop of 'ora.ons' on 'ohs2' succeeded CRS-2673: Attempting to stop 'ora.net1.network' on 'ohs2' CRS-2677: Stop of 'ora.net1.network' on 'ohs2' succeeded CRS-2792: Shutdown of Cluster Ready Services-managed resources on 'ohs2' has completed CRS-2677: Stop of 'ora.crsd' on 'ohs2' succeeded CRS-2673: Attempting to stop 'ora.ctssd' on 'ohs2' CRS-2673: Attempting to stop 'ora.evmd' on 'ohs2' CRS-2673: Attempting to stop 'ora.storage' on 'ohs2' CRS-2677: Stop of 'ora.storage' on 'ohs2' succeeded CRS-2673: Attempting to stop 'ora.asm' on 'ohs2' CRS-2677: Stop of 'ora.ctssd' on 'ohs2' succeeded CRS-2677: Stop of 'ora.evmd' on 'ohs2' succeeded CRS-2677: Stop of 'ora.asm' on 'ohs2' succeeded CRS-2673: Attempting to stop 'ora.cluster_interconnect.haip' on 'ohs2' CRS-2677: Stop of 'ora.cluster_interconnect.haip' on 'ohs2' succeeded CRS-2673: Attempting to stop 'ora.cssd' on 'ohs2' CRS-2677: Stop of 'ora.cssd' on 'ohs2' succeeded CRS-2672: Attempting to start 'ora.evmd' on 'ohs2' CRS-2672: Attempting to start 'ora.cssdmonitor' on 'ohs2' CRS-2676: Start of 'ora.cssdmonitor' on 'ohs2' succeeded CRS-2672: Attempting to start 'ora.cssd' on 'ohs2' CRS-2672: Attempting to start 'ora.diskmon' on 'ohs2' CRS-2676: Start of 'ora.diskmon' on 'ohs2' succeeded CRS-2676: Start of 'ora.evmd' on 'ohs2' succeeded CRS-2676: Start of 'ora.cssd' on 'ohs2' succeeded CRS-2672: Attempting to start 'ora.ctssd' on 'ohs2' CRS-2672: Attempting to start 'ora.cluster_interconnect.haip' on 'ohs2' CRS-2676: Start of 'ora.ctssd' on 'ohs2' succeeded CRS-2676: Start of 'ora.cluster_interconnect.haip' on 'ohs2' succeeded CRS-2672: Attempting to start 'ora.asm' on 'ohs2' CRS-2676: Start of 'ora.asm' on 'ohs2' succeeded CRS-2672: Attempting to start 'ora.storage' on 'ohs2' CRS-2676: Start of 'ora.storage' on 'ohs2' succeeded CRS-2672: Attempting to start 'ora.crsd' on 'ohs2' CRS-2676: Start of 'ora.crsd' on 'ohs2' succeeded Oracle Grid Infrastructure restarted in node ohs2 CRS-2673: Attempting to stop 'ora.crsd' on 'ohs3' CRS-2790: Starting shutdown of Cluster Ready Services-managed resources on 'ohs3' CRS-2673: Attempting to stop 'ora.oc4j' on 'ohs3' CRS-2673: Attempting to stop 'ora.ASMNET1LSNR_ASM.lsnr' on 'ohs3' CRS-2673: Attempting to stop 'ora.FRA_PGOLD.dg' on 'ohs3' CRS-2673: Attempting to stop 'ora.cvu' on 'ohs3' CRS-2673: Attempting to stop 'ora.SYSTEMDG.dg' on 'ohs3' CRS-2673: Attempting to stop 'ora.DATA_PGOLD.dg' on 'ohs3' CRS-2677: Stop of 'ora.cvu' on 'ohs3' succeeded CRS-2672: Attempting to start 'ora.cvu' on 'ohs1' CRS-2677: Stop of 'ora.FRA_PGOLD.dg' on 'ohs3' succeeded CRS-2677: Stop of 'ora.SYSTEMDG.dg' on 'ohs3' succeeded CRS-2677: Stop of 'ora.DATA_PGOLD.dg' on 'ohs3' succeeded CRS-2676: Start of 'ora.cvu' on 'ohs1' succeeded CRS-2677: Stop of 'ora.ASMNET1LSNR_ASM.lsnr' on 'ohs3' succeeded CRS-2673: Attempting to stop 'ora.LISTENER_SCAN2.lsnr' on 'ohs3' CRS-2677: Stop of 'ora.LISTENER_SCAN2.lsnr' on 'ohs3' succeeded CRS-2673: Attempting to stop 'ora.scan2.vip' on 'ohs3' CRS-2677: Stop of 'ora.scan2.vip' on 'ohs3' succeeded CRS-2672: Attempting to start 'ora.scan2.vip' on 'ohs2' CRS-2677: Stop of 'ora.oc4j' on 'ohs3' succeeded CRS-2672: Attempting to start 'ora.oc4j' on 'ohs1' CRS-2676: Start of 'ora.scan2.vip' on 'ohs2' succeeded CRS-2672: Attempting to start 'ora.LISTENER_SCAN2.lsnr' on 'ohs2' CRS-2676: Start of 'ora.oc4j' on 'ohs1' succeeded CRS-2676: Start of 'ora.LISTENER_SCAN2.lsnr' on 'ohs2' succeeded CRS-2673: Attempting to stop 'ora.mgmtdb' on 'ohs3' CRS-2672: Attempting to start 'ora.SYSTEMDG.dg' on 'ohs2' CRS-2673: Attempting to stop 'ora.LISTENER.lsnr' on 'ohs3' CRS-2673: Attempting to stop 'ora.gns' on 'ohs3' CRS-2676: Start of 'ora.SYSTEMDG.dg' on 'ohs2' succeeded CRS-2677: Stop of 'ora.LISTENER.lsnr' on 'ohs3' succeeded CRS-2673: Attempting to stop 'ora.ohs3.vip' on 'ohs3' CRS-2677: Stop of 'ora.ohs3.vip' on 'ohs3' succeeded CRS-2672: Attempting to start 'ora.ohs3.vip' on 'ohs2' CRS-2677: Stop of 'ora.mgmtdb' on 'ohs3' succeeded CRS-2673: Attempting to stop 'ora.MGMTLSNR' on 'ohs3' CRS-2677: Stop of 'ora.gns' on 'ohs3' succeeded CRS-2673: Attempting to stop 'ora.gns.vip' on 'ohs3' CRS-2677: Stop of 'ora.MGMTLSNR' on 'ohs3' succeeded CRS-2672: Attempting to start 'ora.MGMTLSNR' on 'ohs1' CRS-2677: Stop of 'ora.gns.vip' on 'ohs3' succeeded CRS-2672: Attempting to start 'ora.gns.vip' on 'ohs2' CRS-2676: Start of 'ora.gns.vip' on 'ohs2' succeeded CRS-2672: Attempting to start 'ora.gns' on 'ohs2' CRS-2676: Start of 'ora.MGMTLSNR' on 'ohs1' succeeded CRS-2672: Attempting to start 'ora.mgmtdb' on 'ohs1' CRS-2676: Start of 'ora.gns' on 'ohs2' succeeded CRS-2676: Start of 'ora.ohs3.vip' on 'ohs2' succeeded CRS-2676: Start of 'ora.mgmtdb' on 'ohs1' succeeded CRS-2673: Attempting to stop 'ora.ons' on 'ohs3' CRS-2677: Stop of 'ora.ons' on 'ohs3' succeeded CRS-2673: Attempting to stop 'ora.net1.network' on 'ohs3' CRS-2677: Stop of 'ora.net1.network' on 'ohs3' succeeded CRS-2792: Shutdown of Cluster Ready Services-managed resources on 'ohs3' has completed CRS-2677: Stop of 'ora.crsd' on 'ohs3' succeeded CRS-2673: Attempting to stop 'ora.ctssd' on 'ohs3' CRS-2673: Attempting to stop 'ora.evmd' on 'ohs3' CRS-2673: Attempting to stop 'ora.storage' on 'ohs3' CRS-2677: Stop of 'ora.storage' on 'ohs3' succeeded CRS-2673: Attempting to stop 'ora.asm' on 'ohs3' CRS-2677: Stop of 'ora.ctssd' on 'ohs3' succeeded CRS-2677: Stop of 'ora.evmd' on 'ohs3' succeeded CRS-2677: Stop of 'ora.asm' on 'ohs3' succeeded CRS-2673: Attempting to stop 'ora.cluster_interconnect.haip' on 'ohs3' CRS-2677: Stop of 'ora.cluster_interconnect.haip' on 'ohs3' succeeded CRS-2673: Attempting to stop 'ora.cssd' on 'ohs3' CRS-2677: Stop of 'ora.cssd' on 'ohs3' succeeded CRS-2672: Attempting to start 'ora.evmd' on 'ohs3' CRS-2672: Attempting to start 'ora.cssdmonitor' on 'ohs3' CRS-2676: Start of 'ora.cssdmonitor' on 'ohs3' succeeded CRS-2672: Attempting to start 'ora.cssd' on 'ohs3' CRS-2672: Attempting to start 'ora.diskmon' on 'ohs3' CRS-2676: Start of 'ora.diskmon' on 'ohs3' succeeded CRS-2676: Start of 'ora.evmd' on 'ohs3' succeeded CRS-2676: Start of 'ora.cssd' on 'ohs3' succeeded CRS-2672: Attempting to start 'ora.ctssd' on 'ohs3' CRS-2672: Attempting to start 'ora.cluster_interconnect.haip' on 'ohs3' CRS-2676: Start of 'ora.ctssd' on 'ohs3' succeeded CRS-2676: Start of 'ora.cluster_interconnect.haip' on 'ohs3' succeeded CRS-2672: Attempting to start 'ora.asm' on 'ohs3' CRS-2676: Start of 'ora.asm' on 'ohs3' succeeded CRS-2672: Attempting to start 'ora.storage' on 'ohs3' CRS-2676: Start of 'ora.storage' on 'ohs3' succeeded CRS-2672: Attempting to start 'ora.crsd' on 'ohs3' CRS-2676: Start of 'ora.crsd' on 'ohs3' succeeded Oracle Grid Infrastructure restarted in node ohs3 [root@ohs1 ~]# |
当前系统Cluster和ASM的类型
1 2 3 4 5 6 7 | [orgrid@ohs1 ~]$ crsctl get cluster mode status Cluster is running in "standard" mode [orgrid@ohs1 ~]$ [orgrid@ohs1 ~]$ asmcmd ASMCMD> showclustermode ASM cluster : Flex mode enabled ASMCMD> |
ASM配置信息
[orgrid@ohs1 ~]$ srvctl status asm -detail
1 2 3 4 5 6 7 8 9 10 | ASM is running on ohs3,ohs2,ohs1 ASM is enabled. [orgrid@ohs1 ~]$ srvctl config asm -detail ASM home: <CRS home> Password file: +SYSTEMDG/orapwASM ASM listener: LISTENER ASM is enabled. ASM is individually enabled on nodes: ASM is individually disabled on nodes: ASM instance count: ALL Cluster ASM listener: ASMNET1LSNR_ASM |
3个节点上ASM监听状态
这里三个ASM实例共用一个服务名，有点类似SCAN的意思
[orgrid@ ohs1 ~]$ lsnrctl status ASMNET1LSNR_ASM
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | LSNRCTL for Linux: Version 12.1.0.2.0 - Production on 25-SEP-2016 11:25:23 Copyright (c) 1991, 2014, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=ASMNET1LSNR_ASM))) STATUS of the LISTENER ------------------------ Alias ASMNET1LSNR_ASM Version TNSLSNR for Linux: Version 12.1.0.2.0 - Production Start Date 25-SEP-2016 11:16:40 Uptime 0 days 0 hr. 8 min. 43 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /pgold/orgrid/oracle/product/121/network/admin/listener.ora Listener Log File /pgold/orgrid/grid_base/diag/tnslsnr/ohs1/asmnet1lsnr_asm/alert/log.xml Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=ASMNET1LSNR_ASM))) (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=172.16.0.21)(PORT=10010))) Services Summary... Service "+ASM" has 3 instance(s). Instance "+ASM1", status READY, has 2 handler(s) for this service... Instance "+ASM2", status READY, has 1 handler(s) for this service... Instance "+ASM3", status READY, has 1 handler(s) for this service... The command completed successfully [orgrid@ohs1 ~]$ |
[orgrid@ ohs2 ~]$ lsnrctl status ASMNET1LSNR_ASM
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | LSNRCTL for Linux: Version 12.1.0.2.0 - Production on 25-SEP-2016 11:28:49 Copyright (c) 1991, 2014, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=ASMNET1LSNR_ASM))) STATUS of the LISTENER ------------------------ Alias ASMNET1LSNR_ASM Version TNSLSNR for Linux: Version 12.1.0.2.0 - Production Start Date 25-SEP-2016 11:17:59 Uptime 0 days 0 hr. 10 min. 50 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /pgold/orgrid/oracle/product/121/network/admin/listener.ora Listener Log File /pgold/orgrid/grid_base/diag/tnslsnr/ohs2/asmnet1lsnr_asm/alert/log.xml Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=ASMNET1LSNR_ASM))) (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=172.16.0.22)(PORT=10010))) Services Summary... Service "+ASM" has 3 instance(s). Instance "+ASM1", status READY, has 1 handler(s) for this service... Instance "+ASM2", status READY, has 2 handler(s) for this service... Instance "+ASM3", status READY, has 1 handler(s) for this service... The command completed successfully [orgrid@ohs2 ~]$ |
[orgrid@ ohs3 ~]$ lsnrctl status ASMNET1LSNR_ASM
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | LSNRCTL for Linux: Version 12.1.0.2.0 - Production on 25-SEP-2016 11:28:59 Copyright (c) 1991, 2014, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=ASMNET1LSNR_ASM))) STATUS of the LISTENER ------------------------ Alias ASMNET1LSNR_ASM Version TNSLSNR for Linux: Version 12.1.0.2.0 - Production Start Date 25-SEP-2016 11:20:08 Uptime 0 days 0 hr. 8 min. 50 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /pgold/orgrid/oracle/product/121/network/admin/listener.ora Listener Log File /pgold/orgrid/grid_base/diag/tnslsnr/ohs3/asmnet1lsnr_asm/alert/log.xml Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=ASMNET1LSNR_ASM))) (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=172.16.0.23)(PORT=10010))) Services Summary... Service "+ASM" has 3 instance(s). Instance "+ASM1", status READY, has 1 handler(s) for this service... Instance "+ASM2", status READY, has 1 handler(s) for this service... Instance "+ASM3", status READY, has 2 handler(s) for this service... The command completed successfully [orgrid@ohs3 ~]$ [orgrid@ohs3 ~]$ |
在节点一上通过服务名连接ASM实例，连接到了+ASM3
1 2 3 4 5 6 7 8 9 10 | [orgrid@ohs1 ~]$ sqlplus sys/oracle@172.16.0.21:10010/+ASM as sysasm SQL*Plus: Release 12.1.0.2.0 Production on Sun Sep 25 11:35:33 2016 Copyright (c) 1982, 2014, Oracle. All rights reserved. Connected to: Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production With the Real Application Clusters and Automatic Storage Management options SQL> select instance_name from v$instance; INSTANCE_NAME ---------------- +ASM3 SQL> |
ASM监听service状况
[orgrid@ohs1 ~]$ lsnrctl service ASMNET1LSNR_ASM
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | LSNRCTL for Linux: Version 12.1.0.2.0 - Production on 25-SEP-2016 11:37:14 Copyright (c) 1991, 2014, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=ASMNET1LSNR_ASM))) Services Summary... Service "+ASM" has 3 instance(s). Instance "+ASM1", status READY, has 2 handler(s) for this service... Handler(s): "DEDICATED" established:0 refused:0 state:ready REMOTE SERVER (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.0.21)(PORT=10010))) "DEDICATED" established:18 refused:0 state:ready LOCAL SERVER Instance "+ASM2", status READY, has 1 handler(s) for this service... Handler(s): "DEDICATED" established:0 refused:0 state:ready REMOTE SERVER (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.0.22)(PORT=10010))) Instance "+ASM3", status READY, has 1 handler(s) for this service... Handler(s): "DEDICATED" established:5 refused:0 state:ready REMOTE SERVER (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.0.23)(PORT=10010))) The command completed successfully [orgrid@ohs1 ~]$ |
通过服务名连接ASM实例，并关闭它
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | [orgrid@ohs1 ~]$ sqlplus sys/oracle@172.16.0.22:10010/+ASM as sysasm SQL*Plus: Release 12.1.0.2.0 Production on Sun Sep 25 11:38:11 2016 Copyright (c) 1982, 2014, Oracle. All rights reserved. Connected to: Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production With the Real Application Clusters and Automatic Storage Management options SQL> select instance_name from v$instance; INSTANCE_NAME ---------------- +ASM2 SQL> shut immediate ASM diskgroups dismounted ASM instance shutdown SQL> exit Disconnected from Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production With the Real Application Clusters and Automatic Storage Management options |
[orgrid@ohs1 ~]$ lsnrctl service ASMNET1LSNR_ASM
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | LSNRCTL for Linux: Version 12.1.0.2.0 - Production on 25-SEP-2016 11:38:51 Copyright (c) 1991, 2014, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=ASMNET1LSNR_ASM))) Services Summary... Service "+ASM" has 2 instance(s). Instance "+ASM1", status READY, has 2 handler(s) for this service... Handler(s): "DEDICATED" established:0 refused:0 state:ready REMOTE SERVER (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.0.21)(PORT=10010))) "DEDICATED" established:18 refused:0 state:ready LOCAL SERVER Instance "+ASM3", status READY, has 1 handler(s) for this service... Handler(s): "DEDICATED" established:5 refused:0 state:ready REMOTE SERVER (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.0.23)(PORT=10010))) The command completed successfully [orgrid@ohs1 ~]$ |
Reference
http://docs.oracle.com/database/121/OSTMG/GUID-12FCB03D-C006-4E1B-A077-262823F8CA06.htm
http://docs.oracle.com/database/121/OSTMG/GUID-39D13B70-30AE-4DFE-BFF9-2CD3A33A82E0.htm
http://www.oracle.com/technetwork/articles/database/flexasm-flexcluster-benefits-odb12c-2177371.html
