Gentoo Archives: gentoo-user

From: Alan McKinnon <alan.mckinnon@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Good file system that recovers from a power failure.
Date: Fri, 31 Dec 2010 20:49:10
Message-Id: 201012312247.45933.alan.mckinnon@gmail.com
In Reply to: [gentoo-user] Good file system that recovers from a power failure. by Dale
1 Apparently, though unproven, at 22:12 on Friday 31 December 2010, Dale did
2 opine thusly:
3
4 > Hi,
5 >
6 > I'm planning to build a rig like mine for my brother before to long. I
7 > know there are lots of opinions on the net but want some personal
8 > experience information on this. My brother does not have a UPS. I may
9 > can talk him into getting one but not sure. What is a good file system
10 > that recovers well from a improper shutdown? I use ext2, ext3 and
11 > reiserfs here but never had a power problem, except when hal broke my
12 > stuff. I know XFS is not good for this already from my own personal
13 > experience.
14 >
15 > Does anyone here have any personal experience on this? Just a 'I use
16 > this and had a power failure and it powered up fine with no data loss'
17 > would be nice. If this happened a lot and still worked, that would be
18 > even better.
19 >
20 > I'm not looking to start a turf war. This will be a plain old desktop
21 > so it doesn't need a fancy file system, just one that recovers from a
22 > power failure.
23
24 Down here we have Africa power.
25 Africa power makes post-Katrina power look tame.
26
27 Total corruptions in 5 years with reiserfs-3.6 and NO ups in that environment
28 = zero.
29
30 I can't fairly comment on ext[234] as I don't have the same length of
31 experience with them. From what other commentators have said elsewhere it
32 looks like with optimum settings and tweaks they can be just as good as I got
33 from reiser, but that's just hearsay from me.
34
35 My gut feel on this is that any modern fs will be built to be able to tolerate
36 blackouts - it's almost a requirement these days. So it's likely a 6 and half-
37 dozen question in reality. Except XFS as you know, but that's a special case
38 (aggressive caching virtually requires a UPS or guaranteed no-downtime power)
39
40 --
41 alan dot mckinnon at gmail dot com

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