Return to BSD News archive
Newsgroups: comp.unix.bsd.freebsd.misc,comp.os.linux.development.system Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!newshost.telstra.net!act.news.telstra.net!psgrain!news.uoregon.edu!hunter.premier.net!news.jmls.edu!chi-news.cic.net!cs.utexas.edu!howland.reston.ans.net!surfnet.nl!sun4nl!rnzll3!sys3.pe1chl!rob From: rob@pe1chl.ampr.org (Rob Janssen) Subject: Re: The better (more suitable)Unix?? FreeBSD or Linux X-Newsreader: NN version 6.5.0 (NOV) Reply-To: pe1chl@wab-tis.rabobank.nl Organization: PE1CHL Message-ID: <Dnu8FD.CK2@pe1chl.ampr.org> References: <4gejrb$ogj@floyd.sw.oz.au> <4gilab$97u@park.uvsc.edu> <4giqu8$aqk@park.uvsc.edu> <4gira2$a9d@park.uvsc.edu> <hpa.31321eee.I.use.Linux@freya.yggdrasil.com> <4h7t5i$qoh@park.uvsc.edu> <DnoqB4.2sy@pe1chl.ampr.org> <4hirl9$nr7@gizmo.nas.nasa.gov> Date: Wed, 6 Mar 1996 08:47:36 GMT Lines: 29 Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:15002 comp.os.linux.development.system:18812 In <4hirl9$nr7@gizmo.nas.nasa.gov> truesdel@gizmo.nas.nasa.gov (Dave Truesdell) writes: >The point you seem to want to ignore is, while data integrity is not >guaranteed, it only affects those files being written at the time of a >crash. If you don't guarantee metadata integrity, you could loose *every* >file on an active filesystem. Please show us how that can happen, and how sync metadata is going to avoid it. I think you are only spreading FUD. (or is there some inherent fragility in FFS that is not in the classic UNIX filesystems and ext2fs?) >If you ever had to manage systems where a restore takes 8 hours to run, even >when mounted async, you might care more about having a filesystem that >maintained metadata integrity. I have used and maintained UNIX systems for well over 12 years, I have had to come back in over the weekend to move 80MB filesystems or to wait hours just to load the base system, I have seen many interesting things happen after system crashes, but I *never* have seen a system or even heard of a system that lost all its files after a simple crash. (i.e. not one that started out by writing data to the raw disk device, something that sync metadata is not going to cure either) Rob -- +------------------------------------+--------------------------------------+ | Rob Janssen rob@knoware.nl | BBS: +31-302870036 (2300-0730 local) | | AMPRnet: rob@pe1chl.ampr.org | AX.25 BBS: PE1CHL@PI8WNO.#UTR.NLD.EU | +------------------------------------+--------------------------------------+