From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id nAOG3l3d147476 for ; Tue, 24 Nov 2009 10:03:48 -0600 Received: from cuzco.net-track.ch (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with SMTP id E10C618D701C for ; Tue, 24 Nov 2009 08:04:11 -0800 (PST) Received: from cuzco.net-track.ch (cuzco.net-track.ch [194.153.188.156]) by cuda.sgi.com with SMTP id IdM0BfeDQcSMeMex for ; Tue, 24 Nov 2009 08:04:11 -0800 (PST) Date: Tue, 24 Nov 2009 17:03:51 +0100 From: Oliver Hitz Subject: Off-line xfsrestore to avoid level 0 dumps Message-ID: <20091124160351.GK29999@net-track.ch> Mime-Version: 1.0 List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============7058789881308544229==" Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com --===============7058789881308544229== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="/ZYM6PqDyfNytx60" Content-Disposition: inline --/ZYM6PqDyfNytx60 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi all, We have to back up several fairly large XFS filesystem (multiple TB) using xfsdump to a remote server (no tape drive involved, all on disks). In order to avoid doing level 0 dumps every now and then, we came up with the idea of constructing level 0 dumps off-line: - xfsrestore of the latest level 0 dump to a temporary location - xfsrestore of the latest level 1 dump - xfsdump -l 0 of this location to create the new level 0 dump By setting the time of the next level 1 dump (using the -t switch), we can then force the dump time to that of our artificial level 0 dump. Has anybody done this before? Can anybody see any issues with this approach? We wouldn't want to end up with a solution where our artificial level 0 dump drifts off from the real content of the filesystem. Thanks in advance for any feedback Oliver --/ZYM6PqDyfNytx60 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iEYEARECAAYFAksMA/kACgkQ4hxFYtsxPohUsQCgmO8mjWgW70A4pDUbLp0fmPMY euEAoODHpiiaN4D8RZ6siSMsg0+icrt9 =GSGL -----END PGP SIGNATURE----- --/ZYM6PqDyfNytx60-- --===============7058789881308544229== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs --===============7058789881308544229==--