目標：

熟悉主要程式的啟停順序瞭解獨佔模式 -excl crsctl start crs與crsctl start cluster 區別

1.熟悉主要程式的啟停順序

1.1 啟動節點rac1：

			
1 [root@rac1 bin]# ./crsctl start crs -excl
		
2 CRS-4123: Oracle High Availability Services has been started.  --啟動OHASD程式
		
3 CRS-2672: Attempting to start 'ora.gipcd' on 'rac1'
		
4 CRS-2672: Attempting to start 'ora.mdnsd' on 'rac1'
		
5 CRS-2676: Start of 'ora.gipcd' on 'rac1' succeeded             --啟動ora.gipcd
		
6 CRS-2676: Start of 'ora.mdnsd' on 'rac1' succeeded             --啟動ora.mdnsd
		
7 CRS-2672: Attempting to start 'ora.gpnpd' on 'rac1'
		
8 CRS-2676: Start of 'ora.gpnpd' on 'rac1' succeeded             --啟動ora.gpnpd
		
9 CRS-2672: Attempting to start 'ora.cssdmonitor' on 'rac1'
		
10 CRS-2676: Start of 'ora.cssdmonitor' on 'rac1' succeeded       --啟動ora.cssdmonitor
		
11 CRS-2672: Attempting to start 'ora.cssd' on 'rac1'
		
12 CRS-2679: Attempting to clean 'ora.diskmon' on 'rac1'
		
13 CRS-2681: Clean of 'ora.diskmon' on 'rac1' succeeded           --清除ora.diskmon
		
14 CRS-2672: Attempting to start 'ora.diskmon' on 'rac1'
		
15 CRS-2676: Start of 'ora.diskmon' on 'rac1' succeeded           --啟動ora.diskmon
		
16 CRS-2676: Start of 'ora.cssd' on 'rac1' succeeded              --啟動ora.cssd
		
17 CRS-2672: Attempting to start 'ora.ctssd' on 'rac1'
		
18 CRS-2672: Attempting to start 'ora.drivers.acfs' on 'rac1'
		
19 CRS-2676: Start of 'ora.ctssd' on 'rac1' succeeded             --啟動ora.ctssd
		
20 CRS-2676: Start of 'ora.drivers.acfs' on 'rac1' succeeded      --啟動ora.drivers.acfs
		
21 CRS-2672: Attempting to start 'ora.asm' on 'rac1'            
		
22 CRS-2676: Start of 'ora.asm' on 'rac1' succeeded               --啟動ora.asm
		
23 CRS-2672: Attempting to start 'ora.crsd' on 'rac1'            
		
24 CRS-2676: Start of 'ora.crsd' on 'rac1' succeeded              --啟動ora.crsd
		
25
		
26 觀察節點rac2：                                                 --節點未啟動，說明 crsctl start crs -excl 只啟動單節點程式
		
27 [root@rac2 bin]# ps -ef|grep grid         
		
28 root      5823  4165  0 23:26 pts/1    00:00:00 grep grid
		
29 [root@rac2 bin]#

1.2 關閉節點rac1

			
1 [root@rac1 bin]# ./crsctl stop crs -f
		
2 CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on'rac1'
		
3 CRS-2673: Attempting to stop 'ora.crsd' on'rac1'                                           
		
4 CRS-2677: Stop of 'ora.crsd' on 'rac1' succeeded                               --關閉ora.crsd
		
5 CRS-2673: Attempting to stop 'ora.cssdmonitor' on'rac1'                                     
		
6 CRS-2673: Attempting to stop 'ora.ctssd' on 'rac1'
		
7 CRS-2673: Attempting to stop 'ora.asm' on 'rac1'
		
8 CRS-2673: Attempting to stop 'ora.drivers.acfs' on 'rac1'
		
9 CRS-2673: Attempting to stop 'ora.mdnsd' on 'rac1'
		
10 CRS-2677: Stop of 'ora.cssdmonitor' on 'rac1' succeeded                        --關閉ora.cssdmonitor        
		
11 CRS-2677: Stop of 'ora.mdnsd' on 'rac1' succeeded                              --關閉ora.mdnsd
		
12 CRS-2677: Stop of 'ora.ctssd' on 'rac1' succeeded                              --關閉ora.ctssd
		
13 CRS-2677: Stop of 'ora.drivers.acfs' on 'rac1' succeeded                       --關閉ora.drivers.acfs
		
14 CRS-2677: Stop of 'ora.asm' on 'rac1' succeeded                                --關閉ora.asm  
		
15 CRS-2673: Attempting to stop 'ora.cssd' on 'rac1'
		
16 CRS-2677: Stop of 'ora.cssd' on 'rac1' succeeded                               --關閉ora.cssd
		
17 CRS-2673: Attempting to stop 'ora.gpnpd' on 'rac1'
		
18 CRS-2673: Attempting to stop 'ora.diskmon' on 'rac1'
		
19 CRS-2677: Stop of 'ora.gpnpd' on 'rac1' succeeded                              --關閉ora.gpnpd
		
20 CRS-2673: Attempting to stop 'ora.gipcd' on 'rac1'
		
21 CRS-2677: Stop of 'ora.diskmon' on 'rac1' succeeded                            --關閉ora.diskmon
		
22 CRS-2677: Stop of 'ora.gipcd' on 'rac1' succeeded                              --關閉ora.gipcd
		
23 CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'rac1' has completed --關閉OHASD程式
		
24 CRS-4133: Oracle High Availability Services has been stopped.
		
25 [root@rac1 bin]#

　　總結：重要程式的啟動順序為：OHASD -> ora.gpnpd -> ora.cssd -> ora.asm -> ora.crsd

2. 瞭解獨佔模式 -excl

　　既然是以獨佔模式啟動，那麼有些資源一定是不能被其他節點共享的。出現搶佔資源會出現什麼情況

2.1 啟動節點rac1：

			
1 [root@rac1 bin]# ./crsctl start crs -excl                   -- -excl表示以獨佔模式啟動
		
2 CRS-4123: Oracle High Availability Services has been started.
		
3 CRS-2672: Attempting to start 'ora.gipcd' on 'rac1'
		
4 CRS-2672: Attempting to start 'ora.mdnsd' on 'rac1'
		
5 CRS-2676: Start of 'ora.gipcd' on 'rac1' succeeded
		
6 CRS-2676: Start of 'ora.mdnsd' on 'rac1' succeeded
		
7 CRS-2672: Attempting to start 'ora.gpnpd' on 'rac1'
		
8 CRS-2676: Start of 'ora.gpnpd' on 'rac1' succeeded
		
9 CRS-2672: Attempting to start 'ora.cssdmonitor' on 'rac1'
		
10 CRS-2676: Start of 'ora.cssdmonitor' on 'rac1' succeeded
		
11 CRS-2672: Attempting to start 'ora.cssd' on 'rac1'
		
12 CRS-2679: Attempting to clean 'ora.diskmon' on 'rac1'
		
13 CRS-2681: Clean of 'ora.diskmon' on 'rac1' succeeded
		
14 CRS-2672: Attempting to start 'ora.diskmon' on 'rac1'
		
15 CRS-2676: Start of 'ora.diskmon' on 'rac1' succeeded
		
16 CRS-2676: Start of 'ora.cssd' on 'rac1' succeeded
		
17 CRS-2672: Attempting to start 'ora.ctssd' on 'rac1'
		
18 CRS-2672: Attempting to start 'ora.drivers.acfs' on 'rac1'
		
19 CRS-2676: Start of 'ora.ctssd' on 'rac1' succeeded
		
20 CRS-2676: Start of 'ora.drivers.acfs' on 'rac1' succeeded
		
21 CRS-2672: Attempting to start 'ora.asm' on 'rac1'
		
22 CRS-2676: Start of 'ora.asm' on 'rac1' succeeded
		
23 CRS-2672: Attempting to start 'ora.crsd' on 'rac1'
		
24 CRS-2676: Start of 'ora.crsd' on 'rac1' succeeded
		
25 [root@rac1 bin]#

2.2 RAC1在獨佔模式下時，看看節點RAC2搶佔資源時會發生什麼：

			
1 [root@rac2 bin]# ./crsctl start crs -excl
		
2 CRS-4123: Oracle High Availability Services has been started.
		
3 CRS-2672: Attempting to start 'ora.gipcd' on 'rac2'
		
4 CRS-2672: Attempting to start 'ora.mdnsd' on 'rac2'
		
5 CRS-2676: Start of 'ora.gipcd' on 'rac2' succeeded
		
6 CRS-2676: Start of 'ora.mdnsd' on 'rac2' succeeded
		
7 CRS-2672: Attempting to start 'ora.gpnpd' on 'rac2'
		
8 CRS-2676: Start of 'ora.gpnpd' on 'rac2' succeeded
		
9 CRS-2672: Attempting to start 'ora.cssdmonitor' on 'rac2'
		
10 CRS-2676: Start of 'ora.cssdmonitor' on 'rac2' succeeded
		
11 CRS-2672: Attempting to start 'ora.cssd' on 'rac2'
		
12 CRS-2679: Attempting to clean 'ora.diskmon' on 'rac2'
		
13 CRS-2681: Clean of 'ora.diskmon' on 'rac2' succeeded
		
14 CRS-2672: Attempting to start 'ora.diskmon' on 'rac2'
		
15 CRS-2676: Start of 'ora.diskmon' on 'rac2' succeeded
		
16 CRS-4402: The CSS daemon was started in exclusive mode but found an active CSS daemon on node rac1, number 1, and is terminating
		
17 CRS-2674: Start of 'ora.cssd' on 'rac2' failed
		
18 CRS-2679: Attempting to clean 'ora.cssd' on 'rac2'
		
19 CRS-2681: Clean of 'ora.cssd' on 'rac2' succeeded
		
20 CRS-2673: Attempting to stop 'ora.diskmon' on 'rac2'
		
21 CRS-2677: Stop of 'ora.diskmon' on 'rac2' succeeded
		
22 CRS-2673: Attempting to stop 'ora.cssdmonitor' on 'rac2'
		
23 CRS-2677: Stop of 'ora.cssdmonitor' on 'rac2' succeeded
		
24 CRS-2673: Attempting to stop 'ora.gpnpd' on 'rac2'
		
25 CRS-2677: Stop of 'ora.gpnpd' on 'rac2' succeeded
		
26 CRS-2673: Attempting to stop 'ora.mdnsd' on 'rac2'
		
27 CRS-2677: Stop of 'ora.mdnsd' on 'rac2' succeeded
		
28 CRS-2673: Attempting to stop 'ora.gipcd' on 'rac2'
		
29 CRS-2677: Stop of 'ora.gipcd' on 'rac2' succeeded
		
30 CRS-4000: Command Start failed, or completed with errors.
		
31 [root@rac2 bin]#

　　出現狀況了(CRS-4402,CRS-2674),現在看看兩個節點的的程式狀況.

2.3 檢視兩個節點此時的程式狀況

			
1 節點RAC1的程式狀態：
		
2 [root@rac1 bin]# ps -ef|grep grid
		
3 root     16810     1  0 00:56 ?        00:00:01 /u01/grid/bin/ohasd.bin exclusive
		
4 grid     16944     1  0 00:56 ?        00:00:00 /u01/grid/bin/oraagent.bin
		
5 grid     16959     1  0 00:56 ?        00:00:00 /u01/grid/bin/gipcd.bin
		
6 grid     16964     1  0 00:56 ?        00:00:00 /u01/grid/bin/mdnsd.bin
		
7 grid     16983     1  0 00:56 ?        00:00:00 /u01/grid/bin/gpnpd.bin
		
8 root     17020     1  0 00:56 ?        00:00:00 /u01/grid/bin/orarootagent.bin
		
9 grid     17640     1  0 01:02 ?        00:00:00 /u01/grid/bin/diskmon.bin -d -f
		
10 root     17708 14498  0 01:06 pts/1    00:00:00 grep grid
		
11 [root@rac1 bin]#
		
12
		
13 節點RAC2的程式狀態：
		
14 [root@rac2 bin]# ps -ef|grep grid
		
15 root      8557     1  0 01:01 ?        00:00:01 /u01/grid/bin/ohasd.bin exclusive
		
16 root      8929  7581  0 01:08 pts/1    00:00:00 grep grid
		
17 [root@rac2 bin]#

　　哈哈，在爭奪資源時RAC1,RAC2兩敗俱傷！獨佔模式一般用於資料庫恢復，升級時。

以非獨佔模式啟動則是去掉 -excl：crsctl start crs

3. crsctl start crs與crsctl start cluster 區別

			
1 啟動命令：crsctl start  cluster
		
2 --[root@rac1 bin]# ./crsctl start  cluster
		
3 CRS-2672: Attempting to start 'ora.cssdmonitor' on 'rac1'
		
4 CRS-2676: Start of 'ora.cssdmonitor' on 'rac1' succeeded
		
5 CRS-2672: Attempting to start 'ora.cssd' on 'rac1'
		
6 CRS-2672: Attempting to start 'ora.diskmon' on 'rac1'
		
7 CRS-2676: Start of 'ora.diskmon' on 'rac1' succeeded
		
8 CRS-2676: Start of 'ora.cssd' on 'rac1' succeeded
		
9 CRS-2672: Attempting to start 'ora.ctssd' on 'rac1'
		
10 CRS-2676: Start of 'ora.ctssd' on 'rac1' succeeded
		
11 CRS-2672: Attempting to start 'ora.asm' on 'rac1'
		
12 CRS-2672: Attempting to start 'ora.evmd' on 'rac1'
		
13 CRS-2676: Start of 'ora.evmd' on 'rac1' succeeded
		
14 CRS-2676: Start of 'ora.asm' on 'rac1' succeeded
		
15 CRS-2672: Attempting to start 'ora.crsd' on 'rac1'
		
16 CRS-2676: Start of 'ora.crsd' on 'rac1' succeeded
		
17 [root@rac1 bin]#

　　crsctl start/stop cluster 命令只是控制Start CRS stack(ora.cssdmonitor,ora.cssd,ora.diskmon,ora.ctssd,ora.asm,ora.crsd)。

使用命令 crsctl start/stop cluster 的前提是OHASD程式已經被啟動

結論：crsctl start/stop crs 管理 CRS 包含程式 OHASD ;

　　　crsctl start/stop cluster 不包含OHASD程式,必須要先啟動 OHASD 程式才可以使用

轉載地址：

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