Date: Tue, 4 Dec 2012 22:07:01 +0000 From: Steve O'Hara-Smith <ateve@sohara.org> To: freebsd-questions@freebsd.org Subject: Re: root filesystem and soft-update Message-ID: <20121204220701.3aa322b9507fb55c7b391af9@sohara.org> In-Reply-To: <CAHzLAVE0jUUrZ82CvSbnFBiBTDaDJUucP1gP-hMHVNdQ=9QU%2BQ@mail.gmail.com> References: <CAHzLAVE0jUUrZ82CvSbnFBiBTDaDJUucP1gP-hMHVNdQ=9QU%2BQ@mail.gmail.com>
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On Tue, 4 Dec 2012 16:50:42 -0500 Rick Miller <vmiller@hostileadmin.com> wrote: > Hi all, > > I remember one time seeing a site that explained why soft-updates was > not enabled for the root filesystem. I tried looking for it earlier, > but failed to locate it. Is there someone who knows where it is? No idea about where it is, but I can recall the reasons. The root filesystem is often quite small and the delay in space freed by deletions could cause the filesystem to fill up during an update resulting in a failed update and a partially hosed root filesystem (not inconsistent, just incomplete - but if it's /bin/sh that's gone it could be tricky recovering). The other reason is that softupdates is about optimising write performace, and the root filesystem shouldn't be getting many writes in normal use so softupdates is of no benefit. -- Steve O'Hara-Smith <ateve@sohara.org>
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