oracle flex cluster,Oracle Flex ASM和Flex集群
Oracle Flex ASM和Flex集群
Oracle RAC 12c 引入了兩個新概念：
中心節點：??和以前的版本一樣，它們通過專用網絡相互連接，并且可以直接訪問共享存儲。這些節點可以直接訪問 Oracle 集群注冊表 (OCR) 和表決磁盤 (VD)。
葉節點：??這些節點是輕型節點，彼此不互連，也不能像中心節點一樣訪問共享存儲。每個葉節點與所連接的中心節點通信，并通過所連接的中心節點連接到集群。
此拓撲允許松散耦合的應用服務器與緊密耦合的數據庫服務器形成一個集群。緊密耦合的服務器是中心服務器，與集群中的其他中心服務器共享數據庫、OCR 和表決設備的存儲并進行對等通信。松耦合的服務器是葉服務器，與集群中的單個中心服務器形成松散通信關聯，不需要與集群中的其他中心服務器或葉服務器共享存儲，也不需要與之進行對等通信，只與所關聯的中心服務器通信。在 12.1.0.1 中，葉服務器旨在提高應用的高可用性和實現多層資源管理。
在 Oracle 12c 之前，對于要使用 ASM 的數據庫實例來說，所有節點上的 ASM 實例必須已處于運行狀態，才能啟動數據庫實例。如果 ASM 實例未運行，則意味著在存儲級使用 ASM 的數據庫實例不能啟動。這實際上意味著無論采用何種技術(即 RAC、ASM 和共享存儲)，均不能訪問數據庫實例。
隨著 Oracle 12c 的推出，一個名為 Oracle Flex ASM 的特性解除了上述限制，它的一個主要特性是故障切換到集群中的其他節點。本質上是一個中心和葉架構，Oracle Clusterware 通過一個替代 ASM 實例將故障節點的連接將無縫轉移到另一個成員節點。在給定集群中運行的 ASM 實例數被稱作 ASM 基數，默認值為 3。但此基數值可以使用 Clusterware 命令修改。
Oracle Flex 集群
從架構上來說，Oracle Flex 集群包括一個中心和葉架構，其中只有中心節點可以直接訪問 Oracle 集群注冊表 (OCR) 和表決磁盤 (VD)。但是應用可以通過葉節點訪問數據庫，而不必在葉節點上運行 ASM 實例。通過中心節點連接到數據庫使得它對應用透明。
圖 1：描繪了一個典型的 Oracle Flex 集群，包含 4 個葉節點和 2 個中心節點。簡單地說，Oracle Flex 集群需要 Oracle Flex ASM。
Oracle Flex ASM 的實現方面
Oracle Flex ASM 可通過兩種方式實現：純 12c Flex ASM(相同版本)Grid Infrasctructure (GI) 和數據庫都運行在 Oracle 12c 上Oracle 12c 之前的混合版本(不同版本)和平常一樣，ASM 實例將在每個節點上運行，Flex 配置支持 12c 之前的數據庫。使用 ASM 磁盤組的兼容性參數管理各數據庫實例之間的兼容性。這種方法的優點是，如果 Oracle 12c 數據庫實例與一個 ASM 實例的連接斷開，數據庫連接將故障切換至其他服務器上的另一個 ASM 實例。通過將基數設置為 all 即可以實現這種故障切換。
使用 Oracle Flex ASM 的 Oracle RAC 12c
標準 Oracle Flex ASM 配置：
Oracle Flex ASM 配置上的 ASM 實例故障：
1. 登錄 RAC 數據庫實例 1 (rac1)[oracle@oel6-112-rac1?Desktop]$?hostname
oel6-112-rac1.localdomain
2. 檢查 ASM 實例和 RAC 數據庫實例的狀態[oracle@oel6-112-rac1?Desktop]$?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. 從實例 1 (rac1) 檢查 RAC 數據庫實例中 ASM 實例的狀態[oracle@oel6-112-rac1?Desktop]$?srvctl?status?asm
ASM?is?running?on?oel6-112-rac2,oel6-112-rac1
4. 在實例 1 (rac1) 中檢查集群狀態[oracle@oel6-112-rac1?Desktop]$?crsctl?check?cluster
CRS-4537:?Cluster?Ready?Services?is?online
CRS-4529:?Cluster?Synchronization?Services?is?online
CRS-4533:?Event?Manager?is?online
5. 用于檢查 Oracle Flex ASM 是否啟用的命令 (rac1)[oracle@oel6-112-rac1?Desktop]$?asmcmd
ASMCMD>?showclustermode
ASM?cluster?:?Flex?mode?enabled
ASMCMD>?showclusterstate
Normal
6. 用于更改 ASM 基數的命令 (rac1)[oracle@oel6-112-rac1?Desktop]$?srvctl?status?asm?-detail
ASM?is?running?on?oel6-112-rac2,oel6-112-rac1
ASM?is?enabled.
[oracle@oel6-112-rac1?Desktop]$?srvctl?config?asm?-detail
ASM?home:?/u01/app/12.1.0/grid
Password?file:?+DATA/orapwASM
ASM?listener:?LISTENER
ASM?is?enabled.
ASM?instance?count:?3
Cluster?ASM?listener:?ASMNET1LSNR_ASM
7. 用于檢查 Oracle Flex ASM 是否啟用的命令 (rac2)[oracle@oel6-112-rac2?Desktop]$?asmcmd
ASMCMD>?showclustermode
ASM?cluster?:?Flex?mode?enabled
ASMCMD>?showclusterstate
Normal
ASMCMD>?exit
8. 如何更改 ASM 基數 (rac2)[oracle@oel6-112-rac2?Desktop]$?srvctl?config??asm?-detail
ASM?home:?/u01/app/12.1.0/grid
Password?file:?+DATA/orapwASM
ASM?listener:?LISTENER
ASM?is?enabled.
ASM?instance?count:?3
Cluster?ASM?listener:?ASMNET1LSNR_ASM
9. 在 RAC 數據庫實例 1 (rac1) 中關閉 ASM 實例[oracle@oel6-112-rac1?Desktop]$?srvctl?stop?asm?-node?oel6-112-rac1?-stopoption?abort?-force
10. 在 RAC 數據庫實例 1 (rac1) 中檢查 ASM 實例的狀態[oracle@oel6-112-rac1?Desktop]$?srvctl?status?asm
PRCR-1070?:?Failed?to?check?if?resource?ora.asm?is?registered
Cannot?communicate?with?crsd
11. 在 RAC 數據庫實例 1 (rac1) 中檢查集群服務的狀態[oracle@oel6-112-rac1?Desktop]$?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. 在實例 1 (rac1) 中檢查 ASM 和 RAC 數據庫的狀態[oracle@oel6-112-rac1?Desktop]$?ps?-ef?|?grep?pmon
oracle????3813?????1??0?17:40??????????00:00:00?mdb_pmon_-MGMTDB
oracle????5806?????1??0?17:42??????????00:00:00?ora_pmon_orcl1
oracle????6193?????1??0?17:42??????????00:00:00?apx_pmon_+APX1
注：在這里，數據庫實例與特定節點中運行的特定 ASM 實例關聯。如果因為某種原因，ASM 實例無法啟動/服務關閉，數據庫實例仍然可以啟動，因為數據庫實例將查找同一集群中運行的 ASM 實例。圖 3 描繪了 Flex ASM 的高可用特性。
13. 在 RAC 數據庫實例 1 (rac1) 中檢查沒有 ASM 實例的正在運行的 RAC 數據庫實例的狀態[oracle@oel6-112-rac1?Desktop]$?.?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. 從 RAC 數據庫實例 1 (rac1) 登錄數據庫實例[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. 從 RAC 數據庫實例 1 (rac1) 連接到 RAC 數據庫實例 2 (rac2) 的 ASM 實例[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>
總結：數據庫實例使用一個專用 ASM 實例，我們強制該 ASM 實例被停止工作來模擬故障，因此數據庫實例重新連接到另一節點(在本示例中為節點 2 (rac2))上的現有 ASM 實例。
Oracle Database 11.2 或早期版本
如前面針對 Oracle 12c 的介紹所述，ASM 與數據庫實例的關聯本質上是特定的。這意味著，如果 ASM 實例無法啟動，該節點/ASM 中的關聯數據庫實例也無法啟動，從而導致該數據庫無法訪問。
1. 登錄 RAC 數據庫實例 1 (rac1)login?as:?oracle
oracle@192.168.xx.xx's?password:
Last?login:?Fri?Sep?27?06:05:44?2013
2. 檢查 ASM 實例和 RAC 數據庫實例的狀態：[oracle@rac1?~]$?ps?-ef?|?grep?pmon
oracle????3053?????1??0?05:56??????????00:00:00?asm_pmon_+ASM1
oracle????3849?????1??0?05:57??????????00:00:00?ora_pmon_flavia1
3. 在 RAC 數據庫實例 1 (rac1) 中檢查 ASM 實例的狀態[oracle@rac1?~]$?srvctl?status?asm
ASM?is?running?on?rac2,rac1
4. 在 RAC 數據庫實例 1 (rac1) 中檢查集群的狀態[oracle@rac1?~]$?crsctl?check?cluster
CRS-4537:?Cluster?Ready?Services?is?online
CRS-4529:?Cluster?Synchronization?Services?is?online
CRS-4533:?Event?Manager?is?online
5. 在 RAC 數據庫實例 1 (rac1) 中停止 ASM 實例[oracle@rac1?~]$?srvctl?stop?asm?-n?rac1?-o?abort?-f
6. 在 RAC 數據庫實例 1 (rac1) 中檢查 ASM 實例的狀態[oracle@rac1?~]$?srvctl?status?asm
ASM?is?running?on?rac2
7. 檢查 ASM 實例和 RAC 數據庫實例 (rac1) 的狀態[oracle@rac1?~]$?ps?-ef?|?grep?pmon
oracle????7885??5795??0?06:20?pts/0????00:00:00?grep?pmon
總結：數據庫實例與 ASM 實例強關聯。如果 ASM 實例發生故障，同一節點上的數據庫實例也會發生故障。
為何使用 Oracle Flex ASMOracle Flex ASM 支持 Oracle Database 12c 客戶端使用更大的 LUN 大小。
支持的最大磁盤組數為 511。
可以靈活地重命名磁盤組中的 ASM 磁盤。
ASM 實例的補丁級驗證滾動補丁期間禁用補丁級驗證
復制物理元數據
Oracle Flex ASM 中的網絡增強在早期版本中，集群要求：一個供客戶端應用訪問的公共網絡
一個或多個用于集群內節點間通信(包括 ASM 通信)的專用網絡
Flex ASM 增加 ASM 網絡，可用于 ASM 與其客戶端之間的通信，以便隔離和分流 ASM 通信。
部署 Flex ASM
下面是 Flex ASM 安裝程序的屏幕截圖。選擇選項“Advanced Installation”
有三個存儲選項：標準 ASMOracle Flex ASM非 ASM 托管的存儲推薦
12c 之前的 ASM 配置模式
管理 Flex ASM：無需 Flex ASM 特定的實例參數
ASM 服務器實例使用自動內存管理 (AMM)
轉：http://www.oracle.com/technetwork/cn/articles/database/flexasm-flexcluster-benefits-odb12c-2177371-zhs.html
Oracle 18c Flex ASM 功能測試
1. Flex ASM說明
Oracle 在12c 中引入Oracle Flex ASM特性， 其可以使ASM實例和數據庫實例在不同的節點上運行，而不是之前的ASM實例必須和數據庫實例運行在同一個節點上。也就是說當某個節點上的ASM 實例掛掉后，其上的數據庫實例還可以正常運行。
在Oracle 12c中，在創建數據庫的時候還需要選擇是否啟用Oracle Flex 集群和Flex ASM， 但是到了18c中，默認就是Flex 集群和Flex ASM，不再需要選擇。 下圖是12c中使用ASMCA工具將普通ASM 實例轉換成Flex ASM。
2. Flex ASM 測試
因為在Oracle 18c 中默認就是Flex ASM。 所以我們這里直接在RAC 環境上測試該功能。
2.1 當前RAC 環境[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中實例信息[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?~]$?srvctl?config?asm?-detail
ASM?home:?
Password?file:?+OCR/orapwASM
Backup?of?Password?file:
ASM?listener:?LISTENER
ASM?is?enabled.
ASM?is?individually?enabled?on?nodes:
ASM?is?individually?disabled?on?nodes:
ASM?instance?count:?3
Cluster?ASM?listener:?ASMNET1LSNR_ASM
[grid@www.cndba.cn?~]$
2.3 模擬ASM 實例故障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
關閉節點1上的ASM 實例[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?~]$?ps?-ef|grep?pmon
grid??????8620?12500??0?09:00?pts/2????00:00:00?grep?--color=auto?pmon
oracle???15875?????1??0?06:19??????????00:00:00?ora_pmon_cndba1
grid?????29346?????1??0?05:21??????????00:00:00?apx_pmon_+APX1
[grid@www.cndba.cn?~]$
此時ASM 實例只在節點2上運行：
[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?~]$?srvctl?status?asm?-detail
ASM?is?running?on?rac2
ASM?is?enabled.
ASM?instance?+ASM2?is?running?on?node?rac2
Number?of?connected?clients:?6
Client?names:?+APX1:+APX:rac?+APX2:+APX:rac?-MGMTDB:_mgmtdb:rac?cndba1:cndba:rac?cndba2:cndba:rac?rac2:_OCR:rac
[grid@www.cndba.cn?~]$
我們可以看到+ASM2上也運行這節點1上的db 實例。
但是節點1上的數據庫實例正常運行：SQL>?select?instance_name,instance_number?from?gv$instance;
INSTANCE_NAME?????????????INSTANCE_NUMBER
--------------------------------?---------------
cndba1???????????????????????????1
cndba2???????????????????????????2
啟動節點1上的ASM實例，又恢復原狀：[grid@www.cndba.cn?~]$?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?~]$?srvctl?status?database?-d?cndba?-detail
Instance?cndba1?is?running?on?node?rac1
Instance?cndba1?is?connected?to?ASM?instance?+ASM1
Instance?cndba2?is?running?on?node?rac2
Instance?cndba2?is?connected?to?ASM?instance?+ASM2
通過實驗，可以驗證任意一個節點的ASM實例的意外關閉/啟動，都不會影響該節點上的數據庫狀態，這極大的增強了RAC的高可用性。
Flex ASM的配置和轉換
從12c開始，推出了Flex ASM特性，允許RAC節點訪問遠程節點的ASM實例，而自身無需運行ASM實例。
一般在Flex集群，中心節點運行ASM實例，葉節點遠程訪問中心節點的ASM實例。
但是中心節點也可以不運行ASM實例而訪問其他節點的ASM實例；另外，標準集群也可以啟用Flex ASM。
由于有通過網絡遠程訪問ASM實例的狀況，因此也形成了ASM網絡，ASM網絡可與Private網絡共用，即ASM&Private網絡，可在安裝界面指定。
確認當前ASM狀態
點擊(?此處)折疊或打開$ asmcmd showclustermode
ASM cluster??:?Flex mode disabled
以上說明是標準ASM
運行asmca，轉換ASM為Flex ASM，以下是部分步驟截圖
ASM的subnet與Public不同，將不能使用與Public相同的端口號
以root用戶運行上圖所示的腳本，將對集群內所有節點重啟CRS
最后，確認當前集群模式
點擊(?此處)折疊或打開$ asmcmd showclustermode
ASM cluster??:?Flex mode enabled
#后兩項是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監聽器
點擊(?此處)折疊或打開$ 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 如何將Standard ASM轉化為Flex ASM
什么是Flex ASM?
我們知道在12c之前的版本里，ASM實例需要在每一個節點運行，而ASM 的客戶端(Database，ACFS，ADVM)只可以訪問本地的ASM 實例。如果使用了Oracle Flex ASM，情況就不一樣了，ASM的客戶端就可以通過ASM網絡訪問遠程的ASM實例。如果一個運行ASM實例的節點宕掉，Oracle集群會在另外一個節點上啟動一個新的ASM實例以此維持它的節點基數(Cardinality)。 同樣，如果一個12c數據庫實例連接了某一個ASM 實例，而這個ASM 實例crash掉或者實例運行出錯，這個數據庫的實例會嘗試重新連接在另一個節點的一個已經存在的ASM實例，這就是 Oracle Flex ASM。
Flex Cluster和Flex ASM的區別
Flex Cluster需要Flex ASM的支持
Flex ASM可以在StandardCluster和Flex Cluster運行
如何控制ASM實例的個數
[orgrid@ohs1?~]$?srvctl?modify?asm?-count?2
[orgrid@ohs1?~]$?srvctl?config?asm
ASM?home:?
Password?file:?+SYSTEMDG/orapwASM
ASM?listener:?LISTENER
ASM?instance?count:?2
Cluster?ASM?listener:?ASMNET1LSNR_ASM
[orgrid@ohs1?~]$
[orgrid@ohs1?~]$?srvctl?modify?asm?-count?1
PRCA-1123?:?The?specified?ASM?cardinality?1?is?less?than?the?minimum?cardinality?of?2.
注意：ASM實例至少的有2個實例，這樣不至于單點故障
Flex ASM和Standard ASM的轉化
我們可以把Standard ASM轉化為Flex ASM，但這個轉化是不可逆的。這樣做的目的可能是為了推廣這個特性，這個特性確實不錯
如果沒有使用Flex ASM，不設置SID會出現連接到空實例，但在Flex ASM情況下，會隨機選擇一個
Standard ASM輸出[orgrid@ohs1?~]$?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輸出[orgrid@ohs1?~]$?echo?$ORACLE_SID
[orgrid@ohs1?~]$?asmcmd
ASMCMD>?showclustermode
ASM?cluster?:?Flex?mode?enabled
ASMCMD>?showclusterstate
Normal
ASMCMD>
asmca幫助信息
[orgrid@ohs1?~]$
[orgrid@ohs1?~]$?asmca?-h
asmca?[-silent]?[-sysAsmPassword?]?[-asmsnmpPassword?]?{?}
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?]
[-asmsnmpPassword?]
[(-param?)]
-diskString?
(-diskGroupName?
(-disk??[-diskName?]?|
-diskList?
[-diskSize?]
[-failuregroup?]
[-force|-noforce]
[-quorum|-noquorum])
[-redundancy?]
[-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?]
3.?Configure?ASM?parameters?by?specifying?the?following?command?and?parameters:
-configureParameter
(-param?)
[-sysAsmPassword?]
4.?Create?Disk?Groups?by?specifying?the?following?command?and?parameters:
-createDiskGroup
[-diskString?]
(-diskGroupName?
(-disk??[-diskName?]?|
-diskList?
[-diskSize?]
[-failuregroup?]
[-force|-noforce]
[-quorum|-noquorum])
[-redundancy?]
[-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?]
5.?Add?disks?to?Disk?Groups?by?specifying?the?following?command?and?parameters:
-addDisk
[-diskString?]
(-diskGroupName?
(-disk??[-diskName?]?|
-diskList?
[-diskSize?]
[-failuregroup?]
[-force|-noforce]
[-quorum|-noquorum])
[-sysAsmPassword?]
6.?Create?volumes?by?specifying?the?following?command?and?parameters:
-createVolume
(-volumeName?
-volumeDiskGroup?
-volumeSizeGB?
[-volumeRedundancy?])
[-sysAsmPassword?]
7.?Create?ASM?Cluster?File?Systems?by?specifying?the?following?command?and?parameters:
-createACFS
(-acfsVolumeDevice?)
(-acfsMountPoint?)
[-acfsUserName?]
[-acfsGroupName?]
[-sysAsmPassword?]
8.?Delete?ASM?instance(s)?by?specifying?the?following?command?and?parameters:
-deleteASM
[-force]
[-dropDiskGroups]
[-sysAsmPassword?]
9. Convert Standard ASM into Oracle Flex ASM by specifying the following command and parameters:
-convertToFlexASM
-asmNetworks
-asmListenerPort
[orgrid@ohs1 ~]$
借助asmca生成轉化為Flex ASM的腳本converttoFlexASM.sh
[orgrid@ohs1 ~]$??asmca -silent -convertToFlexASM -asmNetworks eth1/172.16.0.0 -asmListenerPort?10010To?complete?ASM?conversion,?run?the?following?script?as?privileged?user?in?local?node.
/pgold/orgrid/grid_base/cfgtoollogs/asmca/scripts/converttoFlexASM.sh??[orgrid@ohs1?~]$
鄭州不孕不育醫院：http://jbk.39.net/yiyuanzaixian/zztjyy/
converttoFlexASM.sh腳本內容
[orgrid@ohs1 ~]$ cat /pgold/orgrid/grid_base/cfgtoollogs/asmca/scripts/converttoFlexASM.sh#!/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執行converttoFlexASM.sh輸出
[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.shCRS-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?~]#
當前系統Cluster和ASM的類型[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
ASM?is?running?on?ohs3,ohs2,ohs1
ASM?is?enabled.?[orgrid@ohs1?~]$?srvctl?config?asm?-detailASM?home:?
Password?file:?+SYSTEMDG/orapwASM
ASM?listener:?LISTENER
ASM?is?enabled.
ASM?is?individually?enabled?on?nodes:
ASM?is?individually?disabled?on?nodes:
ASM?instance?count:?ALL
Cluster?ASM?listener:?ASMNET1LSNR_ASM
3個節點上ASM監聽狀態
這里三個ASM實例共用一個服務名，有點類似SCAN的意思
[orgrid@?ohs1~]$ lsnrctl status ASMNET1LSNR_ASM
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_ASMLSNRCTL?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_ASMLSNRCTL?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?~]$
在節點一上通過服務名連接ASM實例，連接到了+ASM3
[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
----------------?+ASM3SQL>
ASM監聽service狀況
[orgrid@ohs1 ~]$ lsnrctl service ASMNET1LSNR_ASMLSNRCTL?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?~]$
通過服務名連接ASM實例，并關閉它[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_ASMLSNRCTL?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?~]$
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