Oracle RAC migration OCR (10g)

Oracle RAC migration OCR

For how to add and delete Oracle rac ocr, see:

Oracle RAC backup and recovery OCR reference:

If you want to change an existing ocr location or a faulty ocr location, you can use the following procedure to migrate the ocr.

1. view the current ocr status

[Oracle @ node1 crs_1] $ ocrcheck
Status of Oracle Cluster Registry is as follows:
Version: 2
Total space (kbytes): 153496
Used space (kbytes): 3816
Available space (kbytes): 149680
ID: 497615595
Device/File Name:/dev/raw/raw7
Device/File integrity check succeeded
Device/File Name:/dev/raw/raw8
Device/File integrity check succeeded

Cluster registry integrity check succeeded

Here, raw7 is normal ocr, and raw8 is image ocr.
2. Run the following command on the node running Oracle clusterware:

[Oracle @ node1 crs_1] $ crsctl check crs
CSS appears healthy
CRS appears healthy
EVM appears healthy

3. migrate normal ocr

[Root @ node1 bin] #./ocrconfig-replace ocr/dev/raw/raw9
[Oracle @ node1 crs_1] $ ocrcheck
Status of Oracle Cluster Registry is as follows:
Version: 2
Total space (kbytes): 153496
Used space (kbytes): 3816
Available space (kbytes): 149680
ID: 497615595
Device/File Name:/dev/raw/raw9
Device/File integrity check succeeded
Device/File Name:/dev/raw/raw8
Device/File integrity check succeeded

Cluster registry integrity check succeeded

We can see that raw9 is normal ocr instead of raw7.

 

4. migrate the image ocr

[Root @ node1 bin] #./ocrconfig-replace ocrmirror/dev/raw/raw7
[Oracle @ node1 crs_1] $ ocrcheck
Status of Oracle Cluster Registry is as follows:
Version: 2
Total space (kbytes): 153496
Used space (kbytes): 3816
Available space (kbytes): 149680
ID: 497615595
Device/File Name:/dev/raw/raw9
Device/File integrity check succeeded
Device/File Name:/dev/raw/raw7
Device/File integrity check succeeded

Cluster registry integrity check succeeded

We can see that raw7 is the image ocr instead of raw8.

5. If a node is closed during ocr migration, you should execute the following command on the node after starting the closed node:

Ocrconfig-repair