Date: Fri, 13 Feb 2004 21:56:45 -0400 (AST) From: "Marc G. Fournier" <scrappy@hub.org> To: Andrew Reilly <areilly@bigpond.net.au> Cc: freebsd-fs@freebsd.org Subject: Re: Upcoming filesystems? Message-ID: <20040213215212.U96890@ganymede.hub.org> In-Reply-To: <20040213041831.GA12350@gurney.reilly.home> References: <20040212235605.GP13780@moo.sysabend.org> <20040213022010.GA2331@frontfree.net> <20040213041831.GA12350@gurney.reilly.home>
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On Fri, 13 Feb 2004, Andrew Reilly wrote: > On Thu, Feb 12, 2004 at 06:48:38PM -0800, Tom Arnold wrote: > > On Fri, Feb 13, 2004 at 10:20:10AM +0800, Xin LI wrote: > > > Personally I'd prefer the SoftUpdates approach, so I am more interested > > > in what made you to think it doesn't fit your needs, performance? > > > security features? or others? > > > > Boot time. Large small-block filesystems take forever to come > > up at bootime Forever being approx 10 minutes per filesystem > > for the snapshot to occur, with 3 filesystems on the machine > > it adds up. > > Why are your filsystems going down dirty? Are you crashing the > system, or is your power supply dodgy? If it's the latter, then > a UPS ought to sort out the problem. I have problems with 4.9-STABLE where doing a 'reboot' with all file systems mounted will result in it hanging while syncing disks ... the last time I did it, I umounted *everything* except those reported as busy, so that all I had left mounted was: Filesystem 1K-blocks Used Avail Capacity Mounted on /dev/da0s1a 516062 191016 283762 40% / /dev/da0s1e 1032142 19454 930118 2% /tmp /dev/da0s1f 10322414 5805016 3691606 61% /usr /dev/da0s1g 1032142 146584 802988 15% /var /dev/da0s1h 119837208 90385742 19864490 82% /vm procfs 4 4 0 100% /proc and it hung, requiring a cold boot ... the higher the uptime, the better chance it happens ... I've gotten into the habit of umounting everything I can, and shutting down all the processes, before rebooting to avoid the issue ... the servers are remote, so a hang tends to mean waiting for someone to get to that machine ... ---- Marc G. Fournier Hub.Org Networking Services (http://www.hub.org) Email: scrappy@hub.org Yahoo!: yscrappy ICQ: 7615664
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