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2 Replies Latest reply: Aug 10, 2013 2:31 AM by sandy1999 RSS

Oracle RAC + HDS User Please help Migration Topic

sandy1999 Newbie
Currently Being Moderated

Hi DBA/Storage Admin,

 

I have following issue that need your help (is a Solaris + Oracle 10g):

 

1. We are going to migrate data center, we going to move physical server BUT we are going to purchase new Hitachi Storage.

2. We are going to use Hitachi TrueCopy to clone all the OCR, Vote Disk and ASMDisks

 

In the server I have following softlink created:

/dev/rdsk/myrac/ocr -> /dev/rdsk/myolddisk1d0s0

/dev/rdsk/myrac/votedisk -> /dev/rdsk/myolddisk2d0s0

/dev/rdsk/myrac/asmdisk -> /dev/rdsk/myolddisk3d0s0

 

What I am going to do is to recreate the softlink to the new LUN, then change the permission to either root:oinstall and oracle:oinstall and 640 or 660 accordingly.

/dev/rdsk/myrac/ocr -> /dev/rdsk/newdisk1d0s0

/dev/rdsk/myrac/votedisk -> /dev/rdsk/newdisk2d0s0

/dev/rdsk/myrac/asmdisk -> /dev/rdsk/newdisk3d0s0

 

Please help me will above plan worked?

 

Thanks for sharing.

  • 1. Re: Oracle RAC + HDS User Please help Migration Topic
    JohnWatson Guru
    Currently Being Moderated

    HexSin wrote:

     

    Hi DBA/Storage Admin,

     

    I have following issue that need your help (is a Solaris + Oracle 10g):

     

    1. We are going to migrate data center, we going to move physical server BUT we are going to purchase new Hitachi Storage.

    2. We are going to use Hitachi TrueCopy to clone all the OCR, Vote Disk and ASMDisks

     

    .

    I cannot advise on the detail of your proposed method, but may I ask one question: are you certain that you have the best approach? If it is possible to mount the old and the new storage on the same node(s), then you can move the disk groups to the new storage by using ASM to relocate file extents, and you can also move the OCR and vote devices. All with zero downtime,

  • 2. Re: Oracle RAC + HDS User Please help Migration Topic
    sandy1999 Newbie
    Currently Being Moderated

    It is not possible to have OLD and NEW Storage to be mounted at the same time, if that possible then it is very easy by add disk to ASM, and Create addition OCR and VOTEDISK at the NEW Storage.

     


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