How to move OCR and VOTE
file (Use Case)
OCR:
It created at the time of Grid Infrastructure Installation. It stores
information to manage Oracle clusterware and its component such as RAC
Database, Listener, VIP, Scan IP and services. Minimum 1 and maximum 5 copies
of OCR are possible.
Voting
Disk: It manages information about node membership. Each
voting disk must be accessible by all nodes in the cluster. If any node is not
passing heat-eat across other note or voting disk, then that node will be
evicted by Voting disk. Minimum 1 and maximum 15 copies of voting disk are
possible.
Facts:
- We can store OCR And Voting disk on ASM or certified cluster file system.
- We can dynamically add or replace voting disk & OCR.
- Backup of Voting disk using “dd” command not supported.
- Voting disk and OCR can be keep in same disk-group or different disk-group
- Voting disk and OCR automatic backup kept together in a single file.
- Automatic backup of Voting disk and OCR happen after every four hours, end of the day, end of the week
- You must have root or sudo privilege account to manage it.
In our case, both OCR and Voting disk are originally
stored in an ASM diskgroup +DATA_DG
We have to move it in a diskgroup +RECO_DG.
Procedure to move OCR:
1.
Ensure the location of OCR and Voting Disks.
Run the
command ocrcheck as GRID or ROOT user.
-sh-4.1# ./ocrcheck
Status of Oracle Cluster
Registry is as follows :
Version : 4
Total space (kbytes) :
409568
Used space (kbytes) :
10288
Available space (kbytes) : 399280
ID : 2126565911
Device/File Name :
+DATA_DG
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
-sh-4.1#
2.
Run the following commands as ROOT
user:
[root@**********dbadm05 ~]# $GRID_HOME/bin/ocrconfig
-add +RECO_DG
[root@**********dbadm05 ~]# $GRID_HOME/bin/ocrconfig
-delete +DATA_DG
Output
-------------------------------------------
-sh-4.1# cd /u01/app/12.1.0.2/grid/bin/
-sh-4.1# ./ocrconfig -add +RECO_DG
-sh-4.1#
-sh-4.1# ./ocrconfig -delete +DATA_DG
-sh-4.1#
3.
Verify that OCR is now located on the diskgroup
-sh-4.1# ./ocrcheck
Status of Oracle Cluster
Registry is as follows :
Version :
4
Total space (kbytes) :
409568
Used space (kbytes) :
10288
Available space (kbytes) : 399280
ID : 2126565911
Device/File Name :
+RECO_DG
Device/File
integrity check succeeded
Device/File
not configured
Device/File
not configured
Device/File
not configured
Device/File
not configured
Cluster registry integrity check
succeeded
Logical corruption check succeeded
-sh-4.1#
Procedure to move VOTE Disks
1.
As GRID user, verify the location of Vote disks
[grid@**********dbadm05
bin]$ crsctl query css votedisk
## STATE
File Universal Id
File Name Disk group
-- -----
-----------------
--------- ---------
1. ONLINE
bfd18f130e8d4f7abf635d221ff30bc2 (o/192.168.10.10/DATA_DG_CD_02_**********celadm06)
[DATA_DG]
2. ONLINE
8e4b44c4cb2f4ff5bf0c6925d6de502d
(o/192.168.10.9/DATA_DG_CD_09_**********celadm05) [DATA_DG]
3. ONLINE
5d0f52427b864fb1bfb10459c6d865eb
(o/192.168.10.11/DATA_DG_CD_02_**********celadm07) [DATA_DG]
4. ONLINE
e52a1489371d4fa1bfb80e98f37ca390
(o/192.168.10.5/DATA_DG_CD_02_**********cela**********) [DATA_DG]
5. ONLINE
58db886482454f77bf10e8f9d37cf39c
(o/192.168.10.6/DATA_DG_CD_02_**********celadm02) [DATA_DG]
Located 5 voting disk(s).
[grid@**********dbadm05
bin]$
2.
As GRID User, run the following command:
[grid@**********dbadm05
bin]$ crsctl replace votedisk +RECO_DG
Successful addition of
voting disk 53c42c2a1d364f86bf2285c3fb24b869.
Successful addition of
voting disk 858f1e5266aa4f0ebfb4558b1e7bfe6a.
Successful addition of
voting disk eab7f715e7174f7fbfa280ea27764625.
Successful deletion of
voting disk bfd18f130e8d4f7abf635d221ff30bc2.
Successful deletion of
voting disk 8e4b44c4cb2f4ff5bf0c6925d6de502d.
Successful deletion of
voting disk 5d0f52427b864fb1bfb10459c6d865eb.
Successful deletion of
voting disk e52a1489371d4fa1bfb80e98f37ca390.
Successful deletion of
voting disk 58db886482454f77bf10e8f9d37cf39c.
Successfully replaced voting
disk group with +RECO_DG.
CRS-4266: Voting file(s)
successfully replaced
[grid@**********dbadm05
bin]$
3.
Check the new location:
[grid@**********dbadm05 bin]$ crsctl query css
votedisk
## STATE File Universal Id File Name Disk group
-- ----- ----------------- --------- ---------
1. ONLINE 53c42c2a1d364f86bf2285c3fb24b869
(o/192.168.10.10/RECO_DG_CD_09_**********celadm06) [RECO_DG]
2. ONLINE 858f1e5266aa4f0ebfb4558b1e7bfe6a
(o/192.168.10.11/RECO_DG_CD_02_**********celadm07) [RECO_DG]
3. ONLINE eab7f715e7174f7fbfa280ea27764625
(o/192.168.10.5/RECO_DG_CD_02_**********cela**********) [RECO_DG]
Located 3 voting disk(s).
[grid@**********dbadm05 bin]$
