Is my data checksummed?

[Christian Kujau]

On Fri, 19 Feb 2010 at 20:15, Reza Roboubi wrote:
> What checksumming is done for the actual data?

Ext4 introduced journal checksumming[0], but not for the actual data. 
Ext2/3 don't have checksums at all, IIRC.

> often do their own checksumming too, but how can I be sure my data is
> integrity checked every time I read it?

Btrfs has data checksumming :-)

Christian.

[0] http://ext4.wiki.kernel.org/index.php/Ext4_Howto#Journal_checksumming
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