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Re: Strange system behaviour when copying disks

To: Seth Mos <knuffie@xxxxxxxxx>
Subject: Re: Strange system behaviour when copying disks
From: Olaf Frączyk <olaf@xxxxxxxxxxxxx>
Date: 14 May 2003 18:10:09 +0200
Cc: linux-xfs@xxxxxxxxxxx
In-reply-to: <4.3.2.7.2.20030514170300.037b8840@xxxxxxxxxxxxx>
References: <4.3.2.7.2.20030514170300.037b8840@xxxxxxxxxxxxx>
Sender: linux-xfs-bounce@xxxxxxxxxxx
On Wed, 2003-05-14 at 17:54, Seth Mos wrote:
> May I suggest the following procedure for copying disks and information...
Why it should be better?
Doing 'cat' I have perfect copy of disk.
You think that I will get lower latency with your scenario?
> partition the second disk similar to your first.
> Mount these partition under something like /mnt/new
> And the other partitions underneath that... eg.
> mount /dev/hdc1 /mnt/new
> mount /dev/hdc5 /mnt/new/usr
> 
> After completing this procedure you can transfer the data.
> 
> (cd /;tar -cf - .)|(cd /mnt/new;tar -xf -)

And all my ACLs go to hell :)
BTW try to do it with NTFS partition :(

> This will give you all files on the second disk. However you must reinstall 
> lilo on this disk since it will not be in the same place anymore.
These disks are not used for booting, OS etc.

> Not it should not be enough to make it that severe. I suspect the dma issue.
As I said earlier, they have DMA enabled.

Regards,

Olaf





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