Date: Wed, 19 Jun 2013 12:04:59 -0500 From: "Matthew D. Fuller" <fullermd@over-yonder.net> To: Jeremy Chadwick <jdc@koitsu.org> Cc: freebsd-stable@freebsd.org, Adam Strohl <adams-freebsd@ateamsystems.com> Subject: Re: shutdown -r / shutdown -h / reboot all hang and don't cleanly dismount Message-ID: <20130619170459.GI1940@over-yonder.net> In-Reply-To: <20130619165200.GA74485@icarus.home.lan> References: <51C1979D.3010305@ateamsystems.com> <20130619122143.GA70813@icarus.home.lan> <51C1A9BF.8030304@ateamsystems.com> <20130619133538.GA71689@icarus.home.lan> <51C1BCF6.8090606@ateamsystems.com> <20130619150414.GA72566@icarus.home.lan> <20130619155346.GG1940@over-yonder.net> <20130619161634.GA73965@icarus.home.lan> <20130619163439.GH1940@over-yonder.net> <20130619165200.GA74485@icarus.home.lan>
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On Wed, Jun 19, 2013 at 09:52:00AM -0700 I heard the voice of Jeremy Chadwick, and lo! it spake thus: > > Justified in your environment, but not in mine -- where most of my > systems (at home) are extremely quiet (1000-1200rpm fans, lots of > noise dampening material, etc.). A 10C increase *during idle* is > enough to make me wary. Mmm. Well, some of them are in 1U cases, and so behind very loud little fans (but that's in a datacenter where *I* don't have to hear it). But the ones sitting beside me are behind <1kRPM fans (80 and 120 mm), and are around 28-30c (which is a tad high; the filters are overdue for cleaning). And ambient is probably 24-25. I'd be seriously creeped out if an *active* drive were 10 over ambient, much less if flipping some config setting moved anything 10. (this is also why I _hate_ laptops...) > On the other hand, their forum was *filled* with post after post > about the issue, including one fellow whose drive in something like > 3 months was almost reaching MTBF head park/reload count. Oh, sure. If you don't get the stupid things to stop, you can measure their life with an egg timer. The 400-some these drives got before I turned APM off happened in, like, an afternoon. > If you had what I do (moderate-to-severe IBS), you'd know that it > definitely doesn't get passed back in a more concentrated form. > First joke I've been able to make about my health condition, yeah! Well, if your diet consists of hard drive manufacturer's souls, it's no wonder your system got all screwed up! You gotta find something to eat with more moral fiber! ;p -- Matthew Fuller (MF4839) | fullermd@over-yonder.net Systems/Network Administrator | http://www.over-yonder.net/~fullermd/ On the Internet, nobody can hear you scream.
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