File System corruption tool

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Hi -

I'm searching for file system corruption tool, say it inject disk-errors
like
multiply owned blocks etc. Later an integrity scan process (like e2fsck)
will
verify on-disk layout and fix these errors.

I'd like to read/understand such tools before writing one for an proprietary
on-disk file system.

Do we have such tools for ext{2,3,4}fs ? Thanks for any help or pointers!

-- 
----
Cheers,
Lakshmipathi.G
FOSS Programmer.
www.giis.co.in

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<div dir=3D"ltr">Hi -=A0<br><div class=3D"gmail_quote"><div dir=3D"ltr"><di=
v><br></div><div>I&#39;m searching for file system corruption tool, say it =
inject disk-errors like<br></div><div><div>multiply owned blocks etc. Later=
 an integrity scan process (like e2fsck) will</div>


<div>verify on-disk layout and fix these errors.=A0</div><div><br></div><di=
v>I&#39;d like to read/understand such tools before writing one for an prop=
rietary</div><div>on-disk file system.=A0</div><div><br></div>
<div>Do we have such tools for ext{2,3,4}fs ? Thanks for any help or pointe=
rs!</div><span class=3D"HOEnZb"><font color=3D"#888888"><div><br></div></fo=
nt></span></div><span class=3D"HOEnZb"><font color=3D"#888888"><div><span s=
tyle=3D"color:rgb(34,34,34)">--=A0</span><br>

</div></font></span></div></div>----<br>Cheers,<br>Lakshmipathi.G<br>FOSS P=
rogrammer.<br><a href=3D"http://www.giis.co.in" target=3D"_blank">www.giis.=
co.in</a>
</div>

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