Re: moving to a new san array
- From: Andrew Kerber <andrew.kerber@xxxxxxxxx>
- To: Joe Hatchel <joe_hatchel@xxxxxxxxx>
- Date: Wed, 10 Nov 2010 10:27:56 -0600
One suggestion, from my experience, is that if possible you should move your
ocr and vote disk to a clustered file system from raw (if necessary) as part
of the process. Note however that there is a bug having to do with the RAW
device size, if it is greater than (I think) 256M you will not be able to
move it to a file.
On Wed, Nov 10, 2010 at 9:58 AM, Joe Hatchel <joe_hatchel@xxxxxxxxx> wrote:
> I am in the middle of preparing for just such a move and have an SR with
> Oracle to verify the process. Unfortunately, just as with the recent thread
> here, I hold little hope of getting timely assistance from them.
>
> I have done a single instance move with ASM by adding the LUNS from the new
> array into the diskgroup, allowing it to rebalance then removing the LUNs
> from the old array. Worked fine.
>
> If you come up with a method to deal with OCR/voting disks, I'd be
> interested in comparing notes.
>
> Good luck
> Joe
>
> ------------------------------
> *From:* Andrew Kerber <andrew.kerber@xxxxxxxxx>
> *To:* eglewis71@xxxxxxxxx
> *Cc:* oracle-l@xxxxxxxxxxxxx
> *Sent:* Wed, November 10, 2010 8:38:41 AM
> *Subject:* Re: moving to a new san array
>
> I have done this, and as I recall while it is a touchy process (that is,
> you dont want to make any mistakes since they are hard to recover from), it
> is fairly straightforward. I moved 10.2 rac on windows to a new san with a
> clusterware upgrade to 11.1. in the process. I will see if I can find my
> notes on the subject. This is definitely the sort of exercise you want to
> to script and practice once or twice before you do it for real. If you cant
> rehearse it, make sure you make real good notes.
>
> On Wed, Nov 10, 2010 at 6:12 AM, ed lewis <eglewis71@xxxxxxxxx> wrote:
>
>> Hi,
>> We're migrating our disks from the current San arrray to a new San
>> array.
>> In do this, the path names for the ocr, voting disks, and asm disks will
>> change.
>> The configuration is 2-node Rac cluster. (solaris 10, ,asm, oracle
>> 10.2.0.4 throughout)
>>
>> I'm looking at different ways to migrate the OCR, and voting disks to
>> the new
>> array. I found a note on MOS which outlines the steps, that are needed to
>> recreate the ocr/voting disks, that have accidentally been deleted. I am
>> hoping
>> to find another solution.
>>
>> We have 2 ocr, and 3 voting disks. I was thinking of removing 1 of
>> each
>> from the current array, and then recreating them on the new array. This
>> would be
>> done before the migration. I'm not crazy about this solution either.
>>
>> I've also looked at doing an export/import of the OCR after the san is
>> migrated,
>> but I don't think that will work.
>>
>> For the ASM devices, I have been told that there is nothing to do.
>> ASM will handle
>> this in its own way, and migrate successfully. Can anyone verify this ?
>>
>> Has anyone done a san migration with RAC ? Any suggestions on how to
>> do this ?
>>
>>
>> Thanks for your time.
>>
>>
>> ed
>>
>>
>>
>>
>>
>
>
>
> --
> Andrew W. Kerber
>
> 'If at first you dont succeed, dont take up skydiving.'
>
>
--
Andrew W. Kerber
'If at first you dont succeed, dont take up skydiving.'
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