Date: Tue, 23 Jul 2002 16:00:28 -0700 (PDT) From: Matthew Dillon <dillon@apollo.backplane.com> To: "Mark W. Krentel" <krentel@dreamscape.com> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: 4.6-RC: Glacial speed of dump backups Message-ID: <200207232300.g6NN0Skh061743@apollo.backplane.com> References: <200207232247.g6NMl3533962@dreamscape.com>
next in thread | previous in thread | raw e-mail | index | archive | help
:I asked about this on -hackers last week. In Linux, the 2.4 kernels :make it impossible for ext2 dump to always see the correct versions of :some files, even if there are no writes during the dump. : : http://old.lwn.net/2001/0503/a/lt-dump.php3 : http://old.lwn.net/2001/0503/a/lt-metadata.php3 : :Are you saying Freebsd has the same problem? I know that dump will :have problems when the file system is changing during the dump, but :the Linux problems go far beyond that. I did some simple tests and :everything works as I'd expect in Freebsd, although it's easy to make :Linux fall over. : :--Mark If the filesystem is idle you'll be O.K. w/FreeBSD. I do not know of any issues with Linux that make it any different from FreeBSD. If you sync a couple of times dumping an idle filesystem under Linux ought to work just about the same as dumping an idle filesystem under FreeBSD. Note that I completely agree with Linus in regards to dump. Its time is long past. We definitely need something better. -Matt Matthew Dillon <dillon@backplane.com> To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200207232300.g6NN0Skh061743>