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Re: xfsdump INTERRUPT issue

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: xfsdump INTERRUPT issue
From: Jeffrey Ellis <jellis@xxxxxxxx>
Date: Fri, 7 Dec 2012 11:15:30 -0500
Cc: Stan Hoeppner <stan@xxxxxxxxxxxxxxxxx>, Jeffrey Ellis <grndlvl@xxxxxxxxx>, "xfs@xxxxxxxxxxx" <xfs@xxxxxxxxxxx>
In-reply-to: <20121207101620.GK27172@dastard>
References: <CCE505AA.B05B7%jellis@xxxxxxxx> <50BFF726.6090006@xxxxxxxxxxxxxxxxx> <68036B67-6AE6-4056-89F5-9549B4E476FD@xxxxxxxx> <50C00583.6000804@xxxxxxxxxxxxxxxxx> <6F909666-9DFE-43F1-973D-170B892F9C5B@xxxxxxxxx> <50C0657D.5050903@xxxxxxxxxxxxxxxxx> <20121207101620.GK27172@dastard>
That's it exactly. You mean I could use xfs_rtcp?

Best,
J. 

On Dec 7, 2012, at 5:16 AM, Dave Chinner <david@xxxxxxxxxxxxx> wrote:

> On Thu, Dec 06, 2012 at 03:29:33AM -0600, Stan Hoeppner wrote:
>> On 12/5/2012 9:01 PM, Jeffrey Ellis wrote:
>> BTW, if your goal in all of this is simply copying all the directories
>> and files from one disk to another disk, you could have used "cp -a" and
>> been done already.  It takes longer to execute than xfsdump/xfsrestore,
>> but given you've been at this for many days now, "cp -a" would have
>> already completed--long ago.
> 
> Unfortunately, using cp or rsync is not possible because the
> filesystem has a real-time device attached to it. It's basically a
> ~10GB data device and a ~500GB real-time device. I'd say it's from a
> DVR or something like that, and that Jeffrey is trying to put
> a bigger disk in the DVR....
> 
> Hence there are various DVR forums that suggest xfsdump/xfsrestore
> is the best method for copying such filesystems to a larger disk.
> I'd guess that people haven't found xfs_rtcp, or maybe they saw the
> caveat in the man page(*) and didn't use it....
> 
> Cheers,
> 
> Dave.
> 
> (*) CAVEATS
>       Currently, realtime partitions are not supported under the
>       Linux version of XFS, and use of a realtime partition WILL
>       CAUSE CORRUPTION on the data partition. As such, this command
>       is made available for curious DEVELOPERS  ONLY at  this
>       point  in time.
> 
> -- 
> Dave Chinner
> david@xxxxxxxxxxxxx
> 
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