Gentoo Archives: gentoo-user

From: Rich Freeman <rich0@g.o>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Re: USB crucial file recovery
Date: Tue, 30 Aug 2016 21:59:17
Message-Id: CAGfcS_n7mv7OzrFx+46_MHmKiXSe97NCi__kqw0+tyT06e3yiA@mail.gmail.com
In Reply to: Re: [gentoo-user] Re: USB crucial file recovery by Volker Armin Hemmann
1 On Tue, Aug 30, 2016 at 4:58 PM, Volker Armin Hemmann
2 <volkerarmin@××××××××××.com> wrote:
3 >
4 > the journal does not add any data integrity benefits at all. It just
5 > makes it more likely that the fs is in a sane state if there is a crash.
6 > Likely. Not a guarantee. Your data? No one cares.
7 >
8
9 That depends on the mode of operation. In journal=data I believe
10 everything gets written twice, which should make it fairly immune to
11 most forms of corruption.
12
13 f2fs would also have this benefit. Data is not overwritten in-place
14 in a log-based filesystem; they're essentially journaled by their
15 design (actually, they're basically what you get if you ditch the
16 regular part of the filesystem and keep nothing but the journal).
17
18 > If you want an fs that cares about your data: zfs.
19 >
20
21 I won't argue that the COW filesystems have better data security
22 features. It will be nice when they're stable in the main kernel.
23
24 --
25 Rich

Replies

Subject Author
Re: [gentoo-user] Re: USB crucial file recovery Volker Armin Hemmann <volkerarmin@××××××××××.com>
[gentoo-user] Re: USB crucial file recovery Kai Krakow <hurikhan77@×××××.com>