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本來一直都有玩下ASM EXTEND RAC這樣的想法，苦于沒有資源測試，等。。。。。
老天不負有心人啊~哈哈！終于有資源玩了。
2套存儲：EMS跟HDS，分別放在不同的機房。
由于原測試系統(tǒng)用的是文件系統(tǒng)，故要將其先改為ASM，再創(chuàng)建ASM EXTEND RAC。
此次修改成ASM EXTEND RAC遇到一系列問題，雖然解決這些問題有過苦惱，但EXTEND RAC成功完成之后，有種莫名的成就感，
各位看官大問題解決之后有木有同感~ 呵呵
1．系統(tǒng)環(huán)境
主機OS版本：AIX 7.1 ("7100-02-03-1334")
ORACLE版本：oracle 11.2.0.3 PSU10
是否RAC：是
節(jié)點個數(shù)：4個
存儲：HDS 100G,EMS 50G
ASM或文件系統(tǒng)：賽門鐵克VERITAS卷管理工具搭建集群文件系統(tǒng)
RAM : 128
SWAP: 13G
8GB
IBM JDK 1.6.0.00 (64 BIT)
/oracle 50GB
/oraclelog 30GB
/ocrvote 2G
/archivelog 400G
/oradata 850
100.15.64.180 testdb1
100.15.64.181 testdb2
100.15.64.182 testdb3
100.15.64.183 testdb4
100.15.64.184 testdb1-vip
100.15.64.185 testdb2-vip
100.15.64.186 testdb3-vip
100.15.64.187 testdb4-vip
100.15.64.188 testdb-scan
7.154.64.1 testdb1-priv
7.154.64.2 testdb2-priv
7.154.64.3 testdb3-priv
7.154.64.4 testdb4-priv
2．文件系統(tǒng)更換成ASM
chown grid:asmadmin /dev/vx/rdmp/remc0_04a1
chown grid:asmadmin /dev/vx/rdmp/rhitachi_v0_11cd
chmod 660 /dev/vx/rdmp/remc0_04a1
chmod 660 /dev/vx/rdmp/rhitachi_v0_11cd
(注：由于測試庫使用的是賽門鐵克的存儲多路徑軟件，故無需修改磁盤屬性)
su – grid
export DISPLAY=100.15.70.169:0.0
asmca
(注：創(chuàng)建OCTVOTE磁盤組選NORMAL冗余，創(chuàng)建2個故障組，最少3塊磁盤，建議選用3塊磁盤，當asm的故障組如果有多余3塊盤，votedisk遷移到這個磁盤組也只用其中的3塊盤。使用crsctl query css votedisk只看到votedisk放在3塊盤上。磁盤組的可用空間以其故障組總大小最小的為準)
su – grid
export DISPLAY=100.15.70.169:0.0
asmca
注：同一邊的存儲放在一個故障組中。
oracle 11G之后的ASM需要將rdbms的compatible參數(shù)修改為11.2.0.0，這個參數(shù)默認的是10.2.0.0，如果這個參數(shù)不修改，后面如果使用兩個故障組，其中一個故障組故障修復(fù)后，將故障組在線online的時候會報如下錯:
ORA-15283: ASM operation requires compatible.rdbms of 11.1.0.0.0 or higher
修改命令：
alter diskgroup SYSDG set attribute 'compatible.rdbms'='11.2.0.0';
select name,COMPATIBILITY,DATABASE_COMPATIBILITY from v$asm_diskgroup;
----compatibility對應(yīng)asm的版本，
DATABASE_COMPATIBILITY --- 兼容數(shù)據(jù)庫版本
因為本次測試沒建庫，所以不涉及數(shù)據(jù)文件遷移，如需遷移，使用RMAN實現(xiàn)。
1)查看ocr跟votedisk
root@testdb1:/#/oracle/app/11.2.0/grid/bin/ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 3
Total space (kbytes) : 262120
Used space (kbytes) : 3296
Available space (kbytes) : 258824
ID : 1187520997
Device/File Name : /ocrvote/ocr1
Device/File integrity check succeeded
Device/File not configured
Device/File not configured
Device/File not configured
Device/File not configured
Cluster registry integrity check succeeded
Logical corruption check succeeded
root@testdb1:/#/oracle/app/11.2.0/grid/bin/crsctl query css votedisk
## STATE File Universal Id File Name Disk group
-- ----- ----------------- --------- ---------
1. ONLINE a948649dc0e14f65bf171ba2ca496962 (/ocrvote/votedisk1) []
2. ONLINE a5f290d560684f47bf82eb3d34db5fc7 (/ocrvote/votedisk2) []
3. ONLINE 49617fb984fc4fcdbf5b7566a9e1778f (/ocrvote/votedisk3) []
Located 3 voting disk(s).
2)查看資源狀態(tài)
$ crsctl stat res -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.DATADG.dg
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.LISTENER.lsnr
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.OCRVOTE.dg
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.SYSDG.dg
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.asm
ONLINE ONLINE testdb1 Started
ONLINE ONLINE testdb2 Started
ONLINE ONLINE testdb3 Started
ONLINE ONLINE testdb4 Started
ora.gsd
OFFLINE OFFLINE testdb1
OFFLINE OFFLINE testdb2
OFFLINE OFFLINE testdb3
OFFLINE OFFLINE testdb4
ora.net1.network
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.ons
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.registry.acfs
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE testdb1
ora.cvu
1 ONLINE ONLINE testdb1
ora.oc4j
1 ONLINE ONLINE testdb1
ora.scan1.vip
1 ONLINE ONLINE testdb1
ora.testdb1.vip
1 ONLINE ONLINE testdb1
ora.testdb2.vip
1 ONLINE ONLINE testdb2
ora.testdb3.vip
1 ONLINE ONLINE testdb3
ora.testdb4.vip
1 ONLINE ONLINE testdb4
3)備份OCR
root@testdb1:/#/oracle/app/11.2.0/grid/bin/ocrconfig -manualbackup
root@testdb1:/#/oracle/app/11.2.0/grid/bin/ocrconfig -showbackup
4)將OCR增加到磁盤組中并刪除原有文件系統(tǒng)中的OCR
root@testdb1:/#/oracle/app/11.2.0/grid/bin/ocrconfig -add +OCRVOTE
root@testdb1:/#/oracle/app/11.2.0/grid/bin/ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 3
Total space (kbytes) : 262120
Used space (kbytes) : 3336
Available space (kbytes) : 258784
ID : 1187520997
Device/File Name : /ocrvote/ocr1
Device/File integrity check succeeded
Device/File Name : +OCRVOTE
Device/File integrity check succeeded
Device/File not configured
Device/File not configured
Device/File not configured
Cluster registry integrity check succeeded
Logical corruption check succeeded
root@testdb1:/#/oracle/app/11.2.0/grid/bin/ocrconfig -delete /ocrvote/ocr1
root@testdb1:/#/oracle/app/11.2.0/grid/bin/ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 3
Total space (kbytes) : 262120
Used space (kbytes) : 3336
Available space (kbytes) : 258784
ID : 1187520997
Device/File Name : +OCRVOTE
Device/File integrity check succeeded
Device/File not configured
Device/File not configured
Device/File not configured
Device/File not configured
Cluster registry integrity check succeeded
Logical corruption check succeeded
5)將votedisk遷移至文件系統(tǒng)中
root@testdb1:/#/oracle/app/11.2.0/grid/bin/crsctl query css votedisk
## STATE File Universal Id File Name Disk group
-- ----- ----------------- --------- ---------
1. ONLINE a948649dc0e14f65bf171ba2ca496962 (/ocrvote/votedisk1) []
2. ONLINE a5f290d560684f47bf82eb3d34db5fc7 (/ocrvote/votedisk2) []
3. ONLINE 49617fb984fc4fcdbf5b7566a9e1778f (/ocrvote/votedisk3) []
Located 3 voting disk(s).
root@testdb1:/#/oracle/app/11.2.0/grid/bin/crsctl replace votedisk +OCRVOTE
CRS-4256: Updating the profile
Successful addition of voting disk 3a5e5e8622024f17bf0c1a4594e303f5.
Successful addition of voting disk 92ff4555f7064f70bf3c022bd687dbc5.
Successful addition of voting disk 19a1fed74b7f4fb6bf780d43b5427dc9.
Successful deletion of voting disk a948649dc0e14f65bf171ba2ca496962.
Successful deletion of voting disk a5f290d560684f47bf82eb3d34db5fc7.
Successful deletion of voting disk 49617fb984fc4fcdbf5b7566a9e1778f.
Successfully replaced voting disk group with +OCRVOTE.
CRS-4256: Updating the profile
CRS-4266: Voting file(s) successfully replaced
root@testdb1:/#/oracle/app/11.2.0/grid/bin/crsctl query css votedisk
## STATE File Universal Id File Name Disk group
-- ----- ----------------- --------- ---------
1. ONLINE 3a5e5e8622024f17bf0c1a4594e303f5 (/dev/vx/rdmp/emc0_04a1) [OCRVOTE]
2. ONLINE 92ff4555f7064f70bf3c022bd687dbc5 (/dev/vx/rdmp/hitachi_vsp0_11cc) [OCRVOTE]
3. ONLINE 19a1fed74b7f4fb6bf780d43b5427dc9 (/dev/vx/rdmp/emc0_04c1) [OCRVOTE]
Located 3 voting disk(s).
3.將NFS添加至磁盤組OCTVOTE中，作為第三塊仲裁盤
asm extend rac需要在2套存儲之外的地方放置一臺linux的pc server，并需要在這臺server上創(chuàng)建一個文件系統(tǒng)。 將此文件系統(tǒng)以NFS形式掛載到asm extend rac的服務(wù)器端，NFS上需要使用dd命令生成盤。
系統(tǒng)版本：Linux el5 x86_64
groupadd -g 1000 oinstall
groupadd -g 1100 asmadmin
useradd -u 1100 -g oinstall -G oinstall,asmadmin -d /home/grid -c "GRID Software Owner" grid
注：建議nfs服務(wù)器用戶ID、組ID跟生產(chǎn)庫一致
cd /oradata
mkdir votedisk
chown 1100:1100 votedisk
vi /etc/exports
新增如下行
/oradata/votedisk *(rw,sync,all_squash,anonuid=1100,anongid=1100)
service nfs stop
service nfs start
[root@ywtcdb ~]# exportfs -v
/oradata 100.15.64.*(rw,wdelay,no_root_squash,no_subtree_check,anonuid=65534,anongid=65534)
/oradata/votedisk
<world>(rw,wdelay,root_squash,all_squash,no_subtree_check,anonuid=1100,anongid=1100)
(注：紅色部分為新增部分)
su - root
mkdir /voting_disk
chown grid:asmadmin /voting_disk
vi /etc/filesystems
新增如下內(nèi)容：
/voting_disk:
dev = "/oradata/votedisk"
vfs = nfs
nodename = ywtcdb
mount = true
options = rw,bg,hard,intr,rsize=32768,wsize=32768,timeo=600,vers=3,proto=tcp,noac,sec=sys
account = false
(注：嚴格按照/etc/filesystems的已有選項進行配置，包括標點符號，空格等，建議使用smit nfs命令進行nfs配置，并在命令配置完成之后修改/etc/filesystems文件中對應(yīng)掛載目錄的options屬性，options屬性必須是rw,bg,hard,intr,rsize=32768,wsize=32768,timeo=600,vers=3,proto=tcp,noac,sec=sys)
使用smit nfs命令設(shè)置啟動自動掛載nfs
#smit nfs
[TOP] [Entry Fields]
* Pathname of mount point [/voting_disk]
* Pathname of remote directory [/oradata/votedisk]
* Host where remote directory resides [ywtcdb]
Mount type name []
* Security method [sys]
* Mount now, add entry to /etc/filesystems or both? both
* /etc/filesystems entry will mount the directory yes
/usr/sbin/nfso –p -o nfs_use_reserved_ports=1
或nfso -p -o nfs_use_reserved_ports=1
su - root
mount -v nfs -o rw,bg,hard,intr,rsize=32768,wsize=32768,timeo=600,vers=3,proto=tcp,noac,sec=sys 100.15.57.125:/oradata/votedisk /voting_disk
注:命令中的100.15.57.125問NFS服務(wù)器的IP, /oradata/votedisk為NFS服務(wù)器的目錄，/voting_disk為生產(chǎn)主機的目錄。
dd if=/dev/zero of=/voting_disk/vote_disk_nfs bs=1M count=1000
su – grid
export DISPLAY=100.15.70.169:0.0
asmca
在asmca中要先改變Disk Discovery Path
修改前：
/dev/vx/rdmp/*
修改后：
/voting_disk/vote_disk_nfs, /dev/vx/rdmp/*
將盤/voting_disk/vote_disk_nfs加到磁盤組OCRVOTE中的一個新的故障組中，添加完成之后我們可以看到磁盤組OCRVOTE有3個故障組。
$ crsctl query css votedisk
## STATE File Universal Id File Name Disk group
-- ----- ----------------- --------- ---------
1. ONLINE 89210622f0864ff0bf9517205691e679 (/voting_disk/vote_disk_nfs) [OCRVOTE]
2. ONLINE 55c4ee685a824ff3bf6ce510bf09468e (/dev/vx/rdmp/remc0_04a1) [OCRVOTE]
3. ONLINE 159234e88fe64f55bf0d4571362c3b07 (/dev/vx/rdmp/ rhitachi_v0_11cd) [OCRVOTE]
Located 3 voting disk(s).
4.ASM EXTEND RAC高可用測試
css日志如下：
節(jié)點1:：
2014-05-20 14:46:44.886:
[cssd(4129042)]CRS-1649:An I/O error occured for voting file: /dev/remc0_04a5; details at (:CSSNM00060:) in /oracle/app/11.2.0/grid/log/testdb1/cssd/ocssd.log.
2014-05-20 14:46:44.886:
[cssd(4129042)]CRS-1649:An I/O error occured for voting file: /dev/remc0_04a5; details at (:CSSNM00059:) in /oracle/app/11.2.0/grid/log/testdb1/cssd/ocssd.log.
2014-05-20 14:46:46.051:
[cssd(4129042)]CRS-1626:A Configuration change request completed successfully
2014-05-20 14:46:46.071:
[cssd(4129042)]CRS-1601:CSSD Reconfiguration complete. Active nodes are testdb1 testdb2 testdb3 testdb4 .
節(jié)點2：
2014-05-20 14:46:46.053:
[cssd(4195026)]CRS-1604:CSSD voting file is offline: /dev/remc0_04a5; details at (:CSSNM00069:) in /oracle/app/11.2.0/grid/log/testdb2/cssd/ocssd.log.
2014-05-20 14:46:46.053:
[cssd(4195026)]CRS-1626:A Configuration change request completed successfully
2014-05-20 14:46:46.071:
[cssd(4195026)]CRS-1601:CSSD Reconfiguration complete. Active nodes are testdb1 testdb2 testdb3 testdb4 .
節(jié)點3：
2014-05-20 14:46:46.053:
[cssd(3604942)]CRS-1604:CSSD voting file is offline: /dev/remc0_04a5; details at (:CSSNM00069:) in /oracle/app/11.2.0/grid/log/testdb3/cssd/ocssd.log.
2014-05-20 14:46:46.053:
[cssd(3604942)]CRS-1626:A Configuration change request completed successfully
2014-05-20 14:46:46.074:
[cssd(3604942)]CRS-1601:CSSD Reconfiguration complete. Active nodes are testdb1 testdb2 testdb3 testdb4 .
節(jié)點4：
2014-05-20 14:46:46.053:
[cssd(3015132)]CRS-1604:CSSD voting file is offline: /dev/remc0_04a5; details at (:CSSNM00069:) in /oracle/app/11.2.0/grid/log/testdb4/cssd/ocssd.log.
2014-05-20 14:46:46.053:
[cssd(3015132)]CRS-1626:A Configuration change request completed successfully
2014-05-20 14:46:46.073:
[cssd(3015132)]CRS-1601:CSSD Reconfiguration complete. Active nodes are testdb1 testdb2 testdb3 testdb4 .
CRS狀態(tài)正常:
testdb3:/oracle/app/11.2.0/grid/log/testdb3/cssd(testdb3)$/oracle/app/11.2.0/grid/bin/crsctl stat res -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.DATADG.dg
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.LISTENER.lsnr
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.OCRVOTE.dg
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.SYSDG.dg
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.asm
ONLINE ONLINE testdb1 Started
ONLINE ONLINE testdb2 Started
ONLINE ONLINE testdb3 Started
ONLINE ONLINE testdb4 Started
ora.gsd
OFFLINE OFFLINE testdb1
OFFLINE OFFLINE testdb2
OFFLINE OFFLINE testdb3
OFFLINE OFFLINE testdb4
ora.net1.network
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.ons
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.registry.acfs
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE
testdb4
ora.cvu
1 ONLINE ONLINE testdb3
ora.oc4j
1 ONLINE ONLINE testdb3
ora.scan1.vip
1 ONLINE ONLINE testdb4
ora.testdb.db
1 ONLINE ONLINE testdb1 Open
2 ONLINE ONLINE testdb2 Open
3 ONLINE ONLINE testdb3 Open
4 ONLINE ONLINE testdb4 Open
ora.testdb1.vip
1 ONLINE ONLINE testdb1
ora.testdb2.vip
1 ONLINE ONLINE testdb2
ora.testdb3.vip
1 ONLINE ONLINE testdb3
ora.testdb4.vip
1 ONLINE ONLINE testdb4
查看votedisk如下：
$ /oracle/app/11.2.0/grid/bin/crsctl query css votedisk
## STATE File Universal Id File Name Disk group
-- ----- ----------------- --------- ---------
1. ONLINE 8a31ddf5013d4fb1bfdbb01d6fc6eb7b (/dev/rhitachi_v0_11cc) [OCRVOTE]
2. ONLINE 1ef9486d54b24f8cbf07814d2848a009 (/voting_disk/vote_disk_nfs) [OCRVOTE]
Located 2 voting disk(s).
當把存儲光纖插回去之后手動online磁盤，兩邊存儲會自動同步數(shù)據(jù)
alter diskgroup SYSDG online disks in failgroup fail_1;
alter diskgroup DATADG online disks in failgroup fail_1;
所有EMC存儲在各節(jié)點ASM磁盤組中都自動OFFLINE，保留HDS存儲，各節(jié)點實例正常。在測試中我們拔掉hds存儲光纖，現(xiàn)象跟拔掉EMS存儲光纖一致。由此可以得出：當一邊存儲宕掉之后，ASM EXTEND RAC保留好的那邊存儲，各節(jié)點實例均正常。當把存儲光纖插回去之后手動online磁盤，兩邊存儲會自動同步數(shù)據(jù)。
注：存放votedisk的磁盤組在磁盤掛回來之后會自動online磁盤
當reboot節(jié)點1、2主機，查看crs資源狀態(tài)如下：
$ crsctl stat res -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.ARCHDG.dg
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.DATADG.dg
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.LISTENER.lsnr
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.OCRVOTE.dg
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.SYSDG.dg
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.asm
ONLINE ONLINE testdb3 Started
ONLINE ONLINE testdb4 Started
ora.gsd
OFFLINE OFFLINE testdb3
OFFLINE OFFLINE testdb4
ora.net1.network
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.ons
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.registry.acfs
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE testdb3
ora.cvu
1 ONLINE ONLINE testdb3
ora.oc4j
1 ONLINE ONLINE testdb3
ora.scan1.vip
1 ONLINE ONLINE testdb3
ora.testdb.db
1 ONLINE OFFLINE
2 ONLINE OFFLINE
3 ONLINE ONLINE testdb3 Open
4 ONLINE ONLINE testdb4 Open
ora.testdb1.vip
1 ONLINE INTERMEDIATE testdb4 FAILED OVER
ora.testdb2.vip
1 ONLINE INTERMEDIATE testdb3 FAILED OVER
ora.testdb3.vip
1 ONLINE ONLINE testdb3
ora.testdb4.vip
1 ONLINE ONLINE testdb4
當節(jié)點1、2主機起來之后，在查看CRS狀態(tài)如下：
$crsctl stat res -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.DATADG.dg
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.LISTENER.lsnr
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.OCRVOTE.dg
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.SYSDG.dg
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.asm
ONLINE ONLINE testdb1 Started
ONLINE ONLINE testdb2 Started
ONLINE ONLINE testdb3 Started
ONLINE ONLINE testdb4 Started
ora.gsd
OFFLINE OFFLINE testdb1
OFFLINE OFFLINE testdb2
OFFLINE OFFLINE testdb3
OFFLINE OFFLINE testdb4
ora.net1.network
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.ons
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.registry.acfs
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE testdb3
ora.cvu
1 ONLINE ONLINE testdb3
ora.oc4j
1 ONLINE ONLINE testdb4
ora.scan1.vip
1 ONLINE ONLINE testdb3
ora.testdb.db
1 ONLINE ONLINE testdb1 Open
2 ONLINE ONLINE testdb2 Open
3 ONLINE ONLINE testdb3 Open
4 ONLINE ONLINE testdb4 Open
ora.testdb1.vip
1 ONLINE ONLINE testdb1
ora.testdb2.vip
1 ONLINE ONLINE testdb2
ora.testdb3.vip
1 ONLINE ONLINE testdb3
ora.testdb4.vip
1 ONLINE ONLINE testdb4
當宕掉1個或多個節(jié)點時，其VIP會飄至正常節(jié)點，所有客戶端重連接到可用節(jié)點，當測試主機重啟完成之后，CRS會自動拉起，且VIP會正常回飄。
由于主機做了虛擬化，無法拔除網(wǎng)線。使用命令ifconfig en1 down宕掉節(jié)點1 public ip所在的網(wǎng)卡進行測試
1)查看節(jié)點1發(fā)現(xiàn)公有IP、VIP及SCAN IP均在網(wǎng)卡en1上。
root@testdb1:/#netstat -in
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll
en1 1500 link#2 0.14.5e.79.5c.ca 5153732 0 4066346 2 0
en1 1500 100.15.64 100.15.64.180 5153732 0 4066346 2 0
en1 1500 100.15.64 100.15.64.184 5153732 0 4066346 2 0
en1 1500 100.15.64 100.15.64.188 5153732 0 4066346 2 0
en2 1500 link#3 0.14.5e.79.5b.e6 40305463 0 44224443 2 0
en2 1500 7.154.64 7.154.64.1 40305463 0 44224443 2 0
en2 1500 169.254 169.254.78.30 40305463 0 44224443 2 0
lo0 16896 link#1 2316784 0 2316787 0 0
lo0 16896 127 127.0.0.1 2316784 0 2316787 0 0
lo0 16896 ::1%1 2316784 0 2316787 0 0
2)使用命令ifconfig en1 down進行測試
root@testdb1:/oracle/app/11.2.0/grid/bin#ifconfig en1 down
3)查看crs資源狀態(tài)發(fā)現(xiàn)vip，scan ip均已飄至正常節(jié)點
testdb3:/home/oracle(testdb3)$crsctl stat res -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.DATADG.dg
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.LISTENER.lsnr
ONLINE OFFLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.OCRVOTE.dg
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.SYSDG.dg
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.asm
ONLINE ONLINE testdb1 Started
ONLINE ONLINE testdb2 Started
ONLINE ONLINE testdb3 Started
ONLINE ONLINE testdb4 Started
ora.gsd
OFFLINE OFFLINE testdb1
OFFLINE OFFLINE testdb2
OFFLINE OFFLINE testdb3
OFFLINE OFFLINE testdb4
ora.net1.network
ONLINE OFFLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.ons
ONLINE OFFLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.registry.acfs
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE testdb2
ora.cvu
1 ONLINE ONLINE testdb2
ora.oc4j
1 ONLINE ONLINE testdb4
ora.scan1.vip
1 ONLINE ONLINE testdb2
ora.testdb.db
1 ONLINE ONLINE testdb1 Open
2 ONLINE ONLINE testdb2 Open
3 ONLINE ONLINE testdb3 Open
4 ONLINE ONLINE testdb4 Open
ora.testdb1.vip
1 ONLINE INTERMEDIATE testdb4 FAILED OVER
ora.testdb2.vip
1 ONLINE ONLINE testdb2
ora.testdb3.vip
1 ONLINE ONLINE testdb3
ora.testdb4.vip
1 ONLINE ONLINE testdb4
4)將節(jié)點1的en1網(wǎng)卡啟起來
root@testdb1:/#ifconfig en1 up
5)查看crs資源狀態(tài)發(fā)現(xiàn)vip正?；仫h
testdb3:/home/oracle(testdb3)$crsctl stat res -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.DATADG.dg
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.LISTENER.lsnr
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.OCRVOTE.dg
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.SYSDG.dg
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.asm
ONLINE ONLINE testdb1 Started
ONLINE ONLINE testdb2 Started
ONLINE ONLINE testdb3 Started
ONLINE ONLINE testdb4 Started
ora.gsd
OFFLINE OFFLINE testdb1
OFFLINE OFFLINE testdb2
OFFLINE OFFLINE testdb3
OFFLINE OFFLINE testdb4
ora.net1.network
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.ons
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
ora.registry.acfs
ONLINE ONLINE testdb1
ONLINE ONLINE testdb2
ONLINE ONLINE testdb3
ONLINE ONLINE testdb4
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE testdb2
ora.cvu
1 ONLINE ONLINE testdb2
ora.oc4j
1 ONLINE ONLINE testdb4
ora.scan1.vip
1 ONLINE ONLINE testdb2
ora.testdb.db
1 ONLINE ONLINE testdb1 Open
2 ONLINE ONLINE testdb2 Open
3 ONLINE ONLINE testdb3 Open
4 ONLINE ONLINE testdb4 Open
ora.testdb1.vip
1 ONLINE ONLINE testdb1
ora.testdb2.vip
1 ONLINE ONLINE testdb2
ora.testdb3.vip
1 ONLINE ONLINE testdb3
ora.testdb4.vip
1 ONLINE ONLINE testdb4
測試節(jié)點(節(jié)點1)監(jiān)聽停止，SCAN LISTENER原來在該節(jié)點運行，已漂移到其他可用節(jié)點，測試節(jié)點 VIP漂移到其他可用節(jié)點，當網(wǎng)卡起來之后(public網(wǎng)絡(luò)恢復(fù)正常)，VIP正?；仫h，測試節(jié)點監(jiān)聽自動online，SCAN LISTENER及scan VIP沒回飄。而后我們依次測試宕掉其他節(jié)點的public IP所在網(wǎng)卡，發(fā)現(xiàn)SCAN LISTENER漂移至instance_number最小的節(jié)點，而vip隨機漂移。
通過kill監(jiān)聽進程實現(xiàn)
原有連接沒有收到影響，新的連接不能連到該節(jié)點實例，應(yīng)用通過TAF或自動重連到另一節(jié)點
監(jiān)聽進程自動重新啟動
通過kill pmon進程實現(xiàn)
kill pmon進程后，數(shù)據(jù)庫實例crash，并且實例自動重啟，重啟完成后會話自動重新連接
通過kill cssd進程實現(xiàn)
kill cssd進程后，該節(jié)點重啟，VIP飄至其他正常節(jié)點，主機啟動完成后CRS自動拉起，集群重新配置。
通過kill crsd進程實現(xiàn)
kill crsd.bin進程后，一分鐘內(nèi)該進程自動拉起。原理：crsd進程crash將會被orarootagent檢測到，同時crsd進程會被自動重啟。
通過kill evmd進程實現(xiàn)
kill evmd.bin進程后，一分鐘內(nèi)該進程自動拉起。原理：evmd進程crash將被ohasd進程檢測到，evmd、orarootagent和crsd進程將會被重啟
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