No xfsdump is a filesystem dump utility. It means that it deals with the filesystem at block level not at file level. It acts like dd, but while dd is dumb as it reads all bloacks, xfsdump only read used blocks avoiding backup of empty blocks. The resulting file is not an image but is browsable via xfsrestore. Xfsrestore is able to restore such a file to any xfs partition provided there is enough place on it: Example: you have a 1.6TB partition used at 30%: you can restore the stuff on a 600GB partition without any problem. Don't fdorget that during a DRP (disaster Recovery Procedure) you often don't have tyhe same hardware as in normal production state. Being able to restore on smaler hardware can save lifes ;-)
xfsdump is definitely far better than dd. (IMHO) Regards, Olivier. > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf > Of Les Mikesell > Sent: mardi 16 août 2005 14:38 > To: [EMAIL PROTECTED] > Cc: [email protected] > Subject: Re: [BackupPC-users] Backing up a BackupPC server > > On Tue, 2005-08-16 at 01:53, [EMAIL PROTECTED] wrote: > > I'd use xfsdump rather than dd (I'm using xfs filesystem) > as xfsdump > > is able to restore on any partition type with any size. > More over, it > > is browsable using xfsrestore. > > That should work for a small archive. As the number of > hardlinks grows, most non-image copying methods slow down > enormously because they detect them by building a table of > names and inode numbers and do a linear scan of the table for > each one to match them up. It's possible that xfsdump does > something better but it would be a good idea to keep the > option of doing image copies. > > -- > Les Mikesell > [EMAIL PROTECTED] > > > > > ------------------------------------------------------- > SF.Net email is Sponsored by the Better Software Conference & EXPO > September 19-22, 2005 * San Francisco, CA * Development > Lifecycle Practices > Agile & Plan-Driven Development * Managing Projects & Teams * > Testing & QA > Security * Process Improvement & Measurement * > http://www.sqe.com/bsce5sf > _______________________________________________ > BackupPC-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/backuppc-users > http://backuppc.sourceforge.net/ > ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ BackupPC-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/backuppc-users http://backuppc.sourceforge.net/
