Saturday, April 2, 2016

OCR Disk migration

Note: This activity can be done online.

 [root@testdb-stg-01 crs_home]# export PATH=$PATH:/oracle/product/crs_home/bin


Check the current status
[root@testdb-stg-01 crs_home]# ocrcheck
Status of Oracle Cluster Registry is as follows :
         Version                  :          2
         Total space (kbytes)     :    1048040
         Used space (kbytes)      :       3636
         Available space (kbytes) :    1044404
         ID                       : 1397237804
         Device/File Name         : /dev/mapper/MFGSTGclus02_1708_42B6_ocr_1000
                                    Device/File integrity check succeeded
         Device/File Name         : /dev/mapper/MFGSTGclus02_1708_42B0_ocr_mirror1_1000
                                    Device/File integrity check succeeded

         Cluster registry integrity check succeeded

Take OCR backup.
 [root@testdb-stg-01 CRS]# ocrconfig -export /oracle/export/CRS/OCR_Backup -s online


Change the OCR config. Please make sure new OCR disk have right permission ( root:dba) else CRS won’t come up once brought down.
 [root@testdb-stg-01 CRS]# ocrconfig -replace ocr /dev/mapper/testdb-stg-01-02_cluster_ocr_001_1000M
 [root@testdb-stg-01 CRS]# ocrconfig -replace ocrmirror /dev/mapper/testdb-stg-01-02_cluster_ocrmirr_002_1000M


Check the current status.
[root@testdb-stg-01 CRS]# ocrcheck
Status of Oracle Cluster Registry is as follows :
         Version                  :          2
         Total space (kbytes)     :    1048040
         Used space (kbytes)      :       3636
         Available space (kbytes) :    1044404
         ID                       : 1397237804
         Device/File Name         : /dev/mapper/testdb-stg-01-02_cluster_ocr_001_1000M
                                    Device/File integrity check succeeded
         Device/File Name         : /dev/mapper/testdb-stg-01-02_cluster_ocrmirr_002_1000M
                                    Device/File integrity check succeeded

         Cluster registry integrity check succeeded.




~~~ Cheers

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