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<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'>Thanks Andreas,<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'>I have a problem
that for the file data I need the fs MetaData is corrupted.<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'>I hope
that because I am using same pre allocate logic all over my FS then I can get
the Maping from other clear state FS file<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'>And read the
data directly from the corrupted FS.<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'>Is that making
sense? <o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'>Thanks,<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'>Yossi<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'>-----Original
Message-----<br>
From: Andreas.Dilger@sun.com [mailto:Andreas.Dilger@sun.com] On Behalf Of Andreas
Dilger<br>
Sent: Wednesday, July 02, 2008 10:29 AM<br>
To: Yamin, Yossi<br>
Cc: ext3-users@redhat.com; tytso@mit.edu<br>
Subject: Re: debugfs question<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'>On Jun 28,
2008 23:50 +0300, Yamin, Yossi wrote</span></font><span dir=RTL></span><font
size=3><span lang=HE dir=RTL style='font-size:12.0pt'><span dir=RTL></span>:<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span lang=HE dir=RTL style='font-size:
12.0pt'>> </span></font><font size=3><span style='font-size:12.0pt'>I am
trying to read a file directly from the disk using debugfs utility</span></font><span
dir=RTL></span><font size=3><span lang=HE dir=RTL style='font-size:12.0pt'><span
dir=RTL></span>.<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span lang=HE dir=RTL style='font-size:
12.0pt'>> <o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span lang=HE dir=RTL style='font-size:
12.0pt'>> </span></font><font size=3><span style='font-size:12.0pt'>I am
running "stat" on the file I want, filter out IND and Bind blocks</span></font><span
dir=RTL></span><font size=3><span lang=HE dir=RTL style='font-size:12.0pt'><span
dir=RTL></span>,<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span lang=HE dir=RTL style='font-size:
12.0pt'>> </span></font><font size=3><span style='font-size:12.0pt'>and then
copy the data blocks using dd directly from the Disk</span></font><span
dir=RTL></span><font size=3><span lang=HE dir=RTL style='font-size:12.0pt'><span
dir=RTL></span>.<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span lang=HE dir=RTL style='font-size:
12.0pt'>> <o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span lang=HE dir=RTL style='font-size:
12.0pt'>> </span></font><font size=3><span style='font-size:12.0pt'>On small
files it work'd (13MB</span></font><span dir=RTL></span><font size=3><span
lang=HE dir=RTL style='font-size:12.0pt'><span dir=RTL></span>).<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span lang=HE dir=RTL style='font-size:
12.0pt'>> <o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span lang=HE dir=RTL style='font-size:
12.0pt'>> </span></font><font size=3><span style='font-size:12.0pt'>On big
files (3.5 , 440 GB) the size is the same but md5sum get differ</span></font><span
dir=RTL></span><font size=3><span lang=HE dir=RTL style='font-size:12.0pt'><span
dir=RTL></span>.<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span lang=HE dir=RTL style='font-size:
12.0pt'>> <o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span lang=HE dir=RTL style='font-size:
12.0pt'>> </span></font><font size=3><span style='font-size:12.0pt'>What am
I doing wrong</span></font><span dir=RTL></span><font size=3><span lang=HE
dir=RTL style='font-size:12.0pt'><span dir=RTL></span>?<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span lang=HE dir=RTL style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'>What you
are doing wrong is that you aren't using the debugfs "dump</span></font><span
dir=RTL></span><font size=3><span lang=HE dir=RTL style='font-size:12.0pt'><span
dir=RTL></span>"<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'>command, which
will do what you are trying to do</span></font><span dir=RTL></span><font
size=3><span lang=HE dir=RTL style='font-size:12.0pt'><span dir=RTL></span>.<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span lang=HE dir=RTL style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span lang=HE dir=RTL style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'>Cheers, Andreas</span></font><font
size=3><span lang=HE dir=RTL style='font-size:12.0pt'><o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span lang=HE dir=RTL style='font-size:
12.0pt'>--<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'>Andreas
Dilger</span></font><font size=3><span lang=HE dir=RTL style='font-size:12.0pt'><o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'>Sr. Staff
Engineer, Lustre Group</span></font><font size=3><span lang=HE dir=RTL
style='font-size:12.0pt'><o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'>Sun
Microsystems of Canada, Inc<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span lang=HE dir=RTL style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span lang=HE dir=RTL style='font-size:
12.0pt'>.<o:p></o:p></span></font></p>
<p class=MsoPlainText dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Courier New"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
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