Date: Fri, 27 Jul 2001 08:39:34 -0500 From: Mike Meyer <mwm@mired.org> To: "Ted Mittelstaedt" <tedm@toybox.placo.com> Cc: questions@freebsd.org Subject: RE: i-node problems Message-ID: <15201.28438.702793.700691@guru.mired.org> In-Reply-To: <114129392@toto.iv>
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Ted Mittelstaedt <tedm@toybox.placo.com> types: > Very little as long as your system doesen't routinely crash. > > /var and /usr are kept separate because one of the things people > have learned over time is that if a filesystem is in the middle of > being written and the system crashes, then the filesystem has more of a > chance of developing errors that fsck cannot repair than if the > filesystem was totally quiescent. So the thought is that if you have > a large /usr with a lot of installed staff and the system falls over > on it's face and /var gets scrambled, then so what, you just newfs it and > restore from the last backup - short and sweet and little time lost. > By contrast if /usr goes down and you have a couple gigs of data in it... > > But I've done exactly what you have done on some systems before for > the same reason with no problems. Two things have changed since the days when that was standard that make this less of a problem. One is that the filesystems are much more robust. The only time I've gotten a badly screwed file system in the last five years was when a power went out three times in a short period, the second two catching the system fscking it's file systems. The other is that instead of being a timesharing system with tens or hundreds of people logged in at once, you see a lot of single-user systems. The value of the time lost fixing a broken file system is much more expensive than in the latter case. <mike -- Mike Meyer <mwm@mired.org> http://www.mired.org/home/mwm/ Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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