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Re: Replacing a Disk on WinNT

From: Steven Lembark <>
Date: Sat, 27 Oct 2001 12:15:27 -0700
Message-ID: <>

> 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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Author: Steven Lembark

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Received on Sat Oct 27 2001 - 14:15:27 CDT

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