Date:   Mon, 24 Jul 2000 10:55:04 -0700 (PDT)
Message-Id: <200007241755.KAA97735@feature.engr.sgi.com>
Reply-To: sgi.bugs.xfs@fido.engr.sgi.com
From:   pv@fddi-odin.corp.sgi.com (jones@tacc.cc.utexas.edu.sgi.com)
Subject: ADD 772830 - XFS on Linux needs standard dump and restore commands
To:     btg@sgi.com
Cc:     linux-xfs@oss.sgi.com
Sender: owner-linux-xfs@oss.sgi.com
Precedence: bulk

 Submitter : wje                       Status : open                        
 Assigned Engineer : btg               Priority : 2                         
*Modified Date : 07/24/00             *Modified User : jones                
*Modified User Domain : tacc.cc.utexas.edu
*Description :
In order to fit into normal Linux system administration,
XFS needs standard dump and restore programs, not just
xfsdump and xfsrestore, which are incompatible
with the dump and restore tools for other file systems.
dump and restore for XFS need to be supplied no later
than the first production release.  They can be based
on xfsdump and xfsrestore, but need to produce tapes
compatible with other dump and restore programs, and have
a matching user interface.


.....


==========================
ADDITIONAL INFORMATION (ADD)
From: "william l. jones" <jones@tacc.cc.utexas.edu>
Date: Jul 24 2000 10:55:04AM
[pvnews version: 1.71]
==========================
At 09:37 PM 7/23/00 -0700, dxm@engr.sgi.com wrote:
>View Incident: 
>http://co-op.engr.sgi.com/BugWorks/code/bwxquery.cgi?search=Search&wlong=1& 
>view_type=Bug&wi=772830
>
>  Status : open                         Priority : 2
>  Assigned Engineer : btg               Submitter : wje
>  Opened Date : 11/05/99               *Modified User : dxm
>*Modified User Domain : engr          *Description :
>In order to fit into normal Linux system administration,
>XFS needs standard dump and restore programs, not just
>xfsdump and xfsrestore, which are incompatible
>with the dump and restore tools for other file systems.
>dump and restore for XFS need to be supplied no later
>than the first production release.  They can be based
>on xfsdump and xfsrestore, but need to produce tapes
>compatible with other dump and restore programs, and have
>a matching user interface.
>
>==========================
>ADDITIONAL INFORMATION (UPDATE)
>From: dxm@engr (BugWorks)
>Date: Jul 23 2000 09:37:12P
>==========================
>
>ivanr@melbourne and tes@melbourne are working on the port
>of xfsdump and xfsrestore.

Given the need to handle file attributes and other xfs file extensions I 
don't see
how a program that dumps a xfs file can produce a dump tape compatible with 
the
current linux dump/restore.

I think a better solution would be to add the xfs ioctl'shat 
xfs_restore/xfs_dump need
to the  ext2 file system.  Not all the xfs_ioctl need to fully work they 
just need
to return reasonable default values.   That way their need only be one 
dump/restore program for linux.

I understand the wish for all dump/restore programs to work the same way
but given the different capabilities of the various unix file systems that 
just
not possible.


Bill Jones