RE: Replacing a Disk on WinNT

Thta's just what I did, skip #3. I realized it wasn't necessary as I had to do a full backup on a Disk C (backup disk) anyway. Everything worked out fine.

Thanks,

George

-----Original Message-----
Sent: Monday, October 29, 2001 6:05 AM
To: Multiple recipients of list ORACLE-L

I don't see any reason why George's approach shouldn't work. In fact, he can skip step 3 and just copy the files to A from their mirrors. If it doesn't work, you've always got the original disk A to put back in.  

                    Steven

                    Lembark              To:     Multiple recipients of list
ORACLE-L      
                    <lembark             <ORACLE-L_at_fatcity.com>

                    @wrkhors.com>        cc:

                    Sent by: root        Subject:     Re: Replacing a Disk
on WinNT        
 

 

                    10/27/2001

                    04:20 PM

                    Please

                    respond to

                    ORACLE-L

 

 

• George Hofilena <GHofilena_at_cnv.org>

> Hi,
>
> We are replacing once of the disks where a mirrored control file and redo
> logs reside, nothing else, with a higher disk capacity.
> I can either use the recommended Oracle approach to moving/relocating
> control
> and redo log files but for my purpose it would seem laborious compared to
> what I am thinking is the quickest. But I need to know whether you agree
> to this.
>
> This is what I intend to do:
>
> 1. Shutdown the database
> 2. Make a full backup.
> 3. Copy the control and redo log files on Disk A to Disk B
> 4. Replace Disk A (Disk A wiil have the same drive letter/designation)
> 5. Copy control and redo log files back from Disk B
> 6. Startup the database.
>
> Is this safe?

No. Only for the reason that you don't have a full backup of everything on stable, offline media. On the other hand, you do have a working backup of the media on the disk that is being removed. Why just just up the scsi address, write lock it and use the drive as its own backup? Basically you'd add the new drive in where the old one was in the chain, up the address of the old one -- total time 15 sec if you don't drop the jumpers too many times -- and copy the contents of the old drive to the new one.

--
Steven Lembark                               2930 W. Palmer
Workhorse Computing                       Chicago, IL 60647
                                            +1 800 762 1582
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