Ocr/voting RAW Disk sequence number change

Dear Gurus,
We are planning to upgrade IBM AIX 5.3 OS technology level upgrade ... and also we are changing the device driver from rdac to sddpcm .
If we do this activity these are the possible changes may occur.......
According to IBM there could be a possibility of RHDISK number , MAJOR and MINOR number changes LIKE /dev/rhdisk0 to /dev/rhdisk1 in this case
Whether this RHDISK number , MAJOR and MINOR number changes will cause any issues on Oracle RAC database particularly on OCR and VOTING disks........
for example currently our OCR LOCATION IS IN : Device/File Name : /dev/rhdisk23 this may change to /dev/rhdisk<25>
Please help mee...
Regards,
Vamsi...

Dear Gurus,
From OCR and VOTING point of view :
currently we have OCR LOCATION :
/dev/rhdisk23------------->Might change to /dev/rhdisk29
currently we have VOTING LOCATION :
/dev/rhdisk24-------------->Might change to /dev/rhdisk30
In this case how oracle will trace new OCR/VOTING raw disk path........How we have to make oracle to understand OCR/VOTING LOCATION is in “/dev/rhdisk29 , /dev/rhdisk30”.....when cluster starts it will go and look in /dev/rhdisk23 for OCR and /dev/rhdisk24 for VOTING .Since it was not there it will fail .
Without OCR/VOTING disk CLUSTER will not start .....
OCR/VOTING disks are safe in "/dev/rhdisk29 , /dev/rhdisk30".......
Even if we take backup of OCR/VOTING disk .....no need to import it in "/dev/rhdisk29 , /dev/rhdisk30".......because OCR/VOTING content was safe...only disk number changes........
In this Scenario
What are the exact commands and steps we need to follow.........Please help me ...
Regards,
Vamsi....

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Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
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user1824755 wrote:
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Learning about RAC..........please anyone reply it
If ocr & voting is lost means, is the database lost some datas? Is it correct?
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I lost 45 minutes data?

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user7443016 wrote:
Thanks for the reply, but all the examples were showing either ocfs2 to ASM or raw to ocfs2. could you just point out the high level steps for moving 3 ocr & votedisk files from one san to another(ocfs to ocfs).
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There will be change only how do you assign storage for OCR/voting disk.
I have another doubt that, i already have 3 ocr files, can i add more ocr files pointing to another mount point? the same goes with votedisk.
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In Aperature, how do you keep photos in the order you changed them to while editing? When you go to burn them to a disk, the order changes from what you see on the screen.

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#Oracle OCR File
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crw-rw---- 1 root oinstall 162, 1 Jan 13 12:44 /dev/raw/raw1
$ ls -l /dev/raw/raw2
crw-rw---- 1 oracle oinstall 162, 2 Jan 13 12:44 /dev/raw/raw2Please post your files permission. If oracle can not ... (use "chown" to change from root user) $ chown root:oinstall /dev/raw/raw1
If you everything ok about permission... Please post more about Error ;)

Ocr/voting RAW Disk sequence number change

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