Thanks to all of you for your advice. Just one thing I had in mind but not sure if it is a wise option: Is it possible to run fsck_ffs(8) with -y during startup so it hopefully is able to repair the filesystems. In addition to that I would do a hourly rsync of the partitions to a NAS to easily repair when somthing goes terrible wrong?
Thomas On 4 March 2018 at 18:49, Nick Holland <n...@holland-consulting.net> wrote: > On 03/03/18 14:48, Thomas Huber wrote: > > Hi, > > > > can someone give me a recomendations for ffs mount options or further > > tuning to prevent file-system corruption on power-outage? > > > > I run a PC-Engines APU2c3 with -stable in a rural place where > power-outage > > takes place approx. once a month. Most of the time every things starts > fine > > when power is back, but sometimes (now the third time in one year) I end > up > > with an corrupted /var and I´ve to go to that place and do manual > fsck_ffs > > which could always repair the fs. > ... > > Wrong question focusing on the wrong problem. The bigger issue is, "Why > is my machine so difficult to fix when things go wrong?" > > Answer: You got the wrong machine for the environment. > > I know, this week, the answer to all questions is "APU", just as some > years ago it was "Soekris", regardless of the question. Just as wrong > now as it was then. > > You need a computer with a real keyboard and a real monitor attached, so > you *WHEN* things go wrong (NOT JUST POWER), you can walk the locals > through fixing (or at least diagnosing) the problem. Normal people (you > know, with weekends, social lives, significant others, things like that) > can't handle serial consoles, nor should they be expected to. > > Murphy's law dictates that the harder it is to get console, the more > often you need it. I know, it's not true, but I swear the ONLY times an > OpenBSD won't come up after a hard power down is when the keyboard and > monitor aren't attached or hard to get attached. Realistically, it's > just that when you have keyboard and monitor attached, the fix is just a > few minutes away, rather than hours or days, and you can walk just about > anyone through it over the phone, and thus becomes a "non-event". > > Nick. > > -- +49.179.1448024 Karl-Kunger-Straße 68 D - 12435 Berlin
