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Re: maximize xfsdump media file size

To: Nicolas Kowalski <Nicolas.Kowalski@xxxxxxx>
Subject: Re: maximize xfsdump media file size
From: Ivan Rayner <ivanr@xxxxxxx>
Date: Thu, 17 Jul 2003 10:32:03 +1000
Cc: linux-xfs@xxxxxxxxxxx
In-reply-to: <vqok7aig0kv.fsf@xxxxxxxxxxxxxxx>
Organization: SGI
References: <vqok7aig0kv.fsf@xxxxxxxxxxxxxxx>
Sender: linux-xfs-bounce@xxxxxxxxxxx
On Wed, 16 Jul 2003 13:42:08 +0200, Nicolas Kowalski wrote:

> Since we started using xfs, all our backups were done using xfsdump on
> remote tape drives, handled by a SunOS sparc box. Now that this sparc
> box is dead, I connected the tape drives directly on the linux box
> containing the XFS filesystems.
> 
> The xfsdump still works, but now, the dumps are split in multiple
> files of ~300MB each on the tape drives, which breaks our backup
> scripts. These expect to find one file per dump (for dump listing
> purpose).
> 
> I have read the xfsdump manpage, and especially the '-d' (media file
> size) option, but I am unable to find the equivalent option value for
> the '-a' (auto-size, aka write until end of tape) option of the
> "traditional" dump tool. Do I have to specify an arbitrary high file
> size ?
> 
> Any hint about this ?

Use 'xfsdump -S ...'

Basically this sets the media file size to int64 max.  The option is not
documented, as breaking a dump into multiple media files is normally a
good thing so the -d option is preferred, but what do I care ... :)

Ivan


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