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<DIV><FONT size=2 face=Verdana><SPAN class=986261918-15032011>I know most people
say ext3 does not fragment, but that it not quite true. Linux is better than
Windows, but not perfect. It does fragment. I have a system hosting multiple
instances of MySQL with maybe 100 separate databases, all of which are being
inserted throughout the day. My iowaits have steadily increased over time and I
believe some of it is due to fragmentation. The real questions are (1) what
is the best way to fix it, and (2) are there any possible repercussions to
defragmenting a filesystem that rides on a DRBD device? <U>I assume the answer
to the second question is no</U>. Does anyone have thoughts on the first
question? What if we just copy all of the data off of the filesystem, rm -rf it,
and then copy it back in? Or should we try to use some kind of ext3
defragmenter?</SPAN></FONT></DIV>
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<P style="MARGIN: 0in 0in 0pt" class=MsoNormal align=left><SPAN
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face=verdana>--<BR></FONT></SPAN><SPAN
style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt"><FONT face=verdana>Eric
Robinson<BR></P>
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<DIV><SPAN style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt"><FONT
face=Verdana></FONT></SPAN> </DIV><BR><BR><FONT color=silver><SPAN style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Verdana"><FONT size=1>Disclaimer - March 15, 2011</FONT></FONT></SPAN></FONT> <P></P><FONT size=1><FONT face=Verdana color=gray><SPAN style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Verdana">This email and any files <FONT size=1>transmitted</FONT> with it are confidential and intended solely for <STRONG>drbd-user@lists.linbit.com</STRONG></SPAN></FONT><FONT face=Verdana color=gray><SPAN style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Verdana">. If you are not the named addressee you should not disseminate, distribute, copy or alter this email. Any views or opinions presented in this email are solely those of the author and might not represent those of Physicians' Managed Care or Physician Select Management. Warning: Although Physicians' Managed Care or Physician Select Management has taken reasonable precautions to ensure no viruses are present in this email, the company cannot accept responsibility for any loss or damage arising from the use of this email or attachments.</SPAN></FONT></FONT></BODY></HTML>