Re: OT: Comparison of filesystems
In article <[🔎] 1145936296.3122.0.camel@haggis.homelan>,
Ron Johnson <ron.l.johnson@cox.net> wrote:
>On Mon, 2006-04-24 at 20:54 -0500, Sumo Wrestler (or just ate too much)
>wrote:
>> Ron Johnson wrote:
>> > [...]
>> > Besides, you can't "wipe" files on a journaling fs. So, you re-
>> > mount your ext3 partition as ext2, wipe the file(s) and then re-
>> > mount as ext3.
>> > [...]
>>
>> Huh?
>>
>> Are you suggesting that you can't permanently delete a file's data by
>> overwriting the file before deleting it?
>
>Not in any journaling fs.
Not in any fs that journals that _data_, but ext3 doesn't do that
by default. It only journals meta-data, and you can overwrite
files just fine.
If you do use ext3 in data-journalling mode (mount -o data=journal)
that yes, it will be a lot slower than ext2. That's why the default
is data=ordered. You can make it even faster, and still more safe than
ext2, by using data=writeback. See "man mount".
Mike.
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