Date: Thu, 14 Jul 2005 10:55:21 +0300 From: Ivailo Tanusheff <i.tanusheff@procreditbank.bg> To: Hilco Wijbenga <hilco.wijbenga@elasticpath.com> Cc: freebsd-questions@freebsd.org Subject: Re: Soft-updates & du & df Message-ID: <OFCB3ADE03.EC529BA5-ONC225703E.002B4CE1-C225703E.002B9204@procreditbank.bg> In-Reply-To: <1121288487.25124.83.camel@hwijbenga.mspace.merchantspace.com>
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Hilco Wijbenga <hilco.wijbenga@elasticpath.com> Sent by: owner-freebsd-questions@freebsd.org 07/14/2005 12:01 AM To freebsd-questions@freebsd.org cc Subject Soft-updates & du & df Hi, I've taken over the administration of a FreeBSD box and now I've run into a problem that I could not solve by means of Google or the FreeBSD mailinglist archives. I am quite familiar with (Gentoo) GNU/Linux but a complete newbie when it comes to FreeBSD. While I was doing some work I got an error about a device being full. As it turned out /var was completely full. Not a big problem because there were a few very big log files that I could throw away. Problem solved? Apparently not because root@svn[var]# df -h /var Filesystem Size Used Avail Capacity Mounted on /dev/ad2s1d 248M 246M -18M 108% /var even though root@svn[var]# du -hs /var 43M /var Shouldn't du and df roughly agree on the amount that's used/available? /var is mounted using soft-updates root@svn[var]# mount /dev/ad2s1a on / (ufs, local) devfs on /dev (devfs, local, multilabel) /dev/ad2s1e on /tmp (ufs, local, soft-updates) /dev/ad2s1f on /usr (ufs, local, soft-updates) /dev/ad2s1d on /var (ufs, local, soft-updates) /dev/gvinum/raid on /raid (ufs, local, soft-updates) According to what I found using Google regarding soft-updates this means that my changes are not written to disk immediately? Does that have anything to do with this? It looks like I didn't really solve the problem because if I try to copy a fairly big file (say 2MB) to the /var/log directory I get another 'No space left on device' even though there should now be about 200MB available. I can create small files though. How do I get du and df to agree again? Or do I have a different problem? Please let me know if I left out any important information. Bye, Hilco _______________________________________________ You can force the updates to be written to the disk using sync (8) for the whole system or fsync on a specific files. Or you can just wait a while so the updates are written to thr disk. Ivailo Tanusheff
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