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List:       linux-lvm
Subject:    Re: [linux-lvm] A Question About LVM
From:       "Denie Andriessen" <denie () bokxing ! nl>
Date:       2010-02-05 0:50:32
Message-ID: EE33E85308ED454393CE31C706987805 () denie
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Hello Mohammed,

my answers:
1) Yes, LVM has undergone a LOT of changes.. The current versions all are actually \
called ' LVM2'  That does suggest there was a LVM (1)...
LVM(1) was quite a bit different, it didn't even need the device mapper !!! 
2) There are so much dates and revisions, check the ChangeLogs, and try and setup a \
CVS client for it, it has ALL the gory details, with dates and all !! ALL !! Even the \
tiniest change is in there !!

Beware, it is a LOT of information !!!

LVM is like any Opensource project, following quite a few rules.. Check out wikipedia \
on it, and see when it has been added to the main kernel as experimental, and when \
the experimetal tag as been removed. You can check that out on kernel.org too !!

Okies, be warned.. learning about this, will take time and effort on your side.. All \
information is there !!! You only have to learn how to acces it !

There is no ready answer for your question in the format you request it.
All the information is in the CVS. Learn CVS, and it will give you all the answers..

Learn, and be happy!

Regards,
Denie  


  ----- Original Message ----- 
  From: Mohammed Aziz Parande 
  To: linux-lvm@redhat.com 
  Sent: Friday, February 05, 2010 1:14 AM
  Subject: [linux-lvm] A Question About LVM


  Hi,

   

  I am a graduate student in the Department of Information Systems at the University \
of Maryland, Baltimore County (UMBC). I am doing research in the area of software \
engineering. I would very much appreciate if you could answer the following questions \
of mine:

   

  1. I was wondering if LVM has gone under any major restructuring/redesign \
initiative in its history. Restructuring/redesign initiative can be defined as a \
concerted effort during a time period in which major changes were applied to the code \
base to improve software architecture/design while little or no functional \
enhancement was made. 

   

  2. If the project has gone under such an initiative, then would it be possible for \
you to give the dates or revision/release numbers that are "right before" and "right \
after" this structuring effort? I would like to checkout the source code from the \
repository to compare structural measurements that belong to "before" and "after" \
snapshots. Note that the dates and revision/release numbers should be right before \
and right after the initiative because I would like to be able to isolate and observe \
the effects of this effort. 

   

  Your response will be very helpful in our research. Thank you very much for your \
time in advance. I look forward to hearing from you soon.

   

   

  Regards,

   

  Mohammed Aziz

   

  P.S. This research is solely performed for academic purposes.

   

   



------------------------------------------------------------------------------


  _______________________________________________
  linux-lvm mailing list
  linux-lvm@redhat.com
  https://www.redhat.com/mailman/listinfo/linux-lvm
  read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/


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<DIV><FONT size=2 face=Arial>Hello Mohammed,</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT>&nbsp;</DIV>
<DIV><FONT size=2 face=Arial>my answers:</FONT></DIV>
<DIV><FONT size=2 face=Arial>1) Yes, LVM has undergone a LOT of changes.. The 
current versions all are actually called ' LVM2' </FONT></DIV>
<DIV><FONT size=2 face=Arial>That does suggest there was a LVM 
(1)...</FONT></DIV>
<DIV><FONT size=2 face=Arial>LVM(1) was quite a bit different, it didn't even 
need the device mapper !!! </FONT></DIV>
<DIV><FONT size=2 face=Arial>2) There are so much dates and revisions, check the 
ChangeLogs, and try and setup a CVS client for it, it has ALL the gory details, 
with dates and all !!</FONT></DIV>
<DIV><FONT size=2 face=Arial>ALL !! Even the tiniest change is in there 
!!</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT>&nbsp;</DIV>
<DIV><FONT size=2 face=Arial>Beware, it is a LOT of information !!!</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT>&nbsp;</DIV>
<DIV><FONT size=2 face=Arial>LVM is like any Opensource project, following quite 
a few rules.. Check out wikipedia on it, and see when it has been added to the 
main kernel as experimental, and when the experimetal tag as been removed. You 
can check that out on kernel.org too !!</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT>&nbsp;</DIV>
<DIV><FONT size=2 face=Arial>Okies, be warned.. learning about this, will take 
time and effort on your side.. All information is there !!! You only have 
to&nbsp;learn how to acces it !</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT>&nbsp;</DIV>
<DIV><FONT size=2 face=Arial>There is no ready answer for your question in the 
format you request it.</FONT></DIV>
<DIV><FONT size=2 face=Arial>All the information is in the CVS. Learn&nbsp;CVS, 
and it will&nbsp;give you all the answers..</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=2 face=Arial>Learn, and be happy!</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=2 face=Arial>Regards,</FONT></DIV>
<DIV><FONT size=2 face=Arial>Denie</FONT>&nbsp;&nbsp;</DIV>
<DIV><FONT size=2 face=Arial></FONT>&nbsp;</DIV>
<DIV><FONT size=2 face=Arial></FONT>&nbsp;</DIV>
<BLOCKQUOTE 
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; \
MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">  <DIV style="FONT: 10pt arial">----- Original \
Message ----- </DIV>  <DIV 
  style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B> 
  <A title=parande1@umbc.edu href="mailto:parande1@umbc.edu">Mohammed Aziz 
  Parande</A> </DIV>
  <DIV style="FONT: 10pt arial"><B>To:</B> <A title=linux-lvm@redhat.com 
  href="mailto:linux-lvm@redhat.com">linux-lvm@redhat.com</A> </DIV>
  <DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, February 05, 2010 1:14 
  AM</DIV>
  <DIV style="FONT: 10pt arial"><B>Subject:</B> [linux-lvm] A Question About 
  LVM</DIV>
  <DIV><FONT size=2 face=Arial></FONT><FONT size=2 face=Arial></FONT><FONT 
  size=2 face=Arial></FONT><FONT size=2 face=Arial></FONT><FONT size=2 
  face=Arial></FONT><FONT size=2 face=Arial></FONT><BR></DIV>
  <DIV class=Section1>
  <P class=MsoPlainText>Hi,<o:p></o:p></P>
  <P class=MsoPlainText><o:p>&nbsp;</o:p></P>
  <P class=MsoPlainText>I am a graduate student in the Department of Information 
  Systems at the University of Maryland, Baltimore County (UMBC). I am doing 
  research in the area of software engineering. I would very much appreciate if 
  you could answer the following questions of mine:<o:p></o:p></P>
  <P class=MsoPlainText><o:p>&nbsp;</o:p></P>
  <P class=MsoPlainText>1. I was wondering if LVM has gone under any major 
  restructuring/redesign initiative in its history. Restructuring/redesign 
  initiative can be defined as a concerted effort during a time period in which 
  major changes were applied to the code base <SPAN style="COLOR: #1f497d">to 
  </SPAN>improve software architecture/design<SPAN style="COLOR: #1f497d"> 
  </SPAN>while little or no functional enhancement<SPAN style="COLOR: #1f497d"> 
  </SPAN>was made. <o:p></o:p></P>
  <P class=MsoPlainText><o:p>&nbsp;</o:p></P>
  <P class=MsoPlainText>2. If the project has gone under such an initiative, 
  then would it be possible for you to give the dates or revision/release 
  numbers that are "right before" and "right after" this structuring effort? I 
  would like to checkout the source code from the repository to compare 
  structural measurements that belong to "before" and "after" snapshots. Note 
  that the dates and revision/release numbers should be right before and right 
  after the initiative because I would like to be able to isolate and observe 
  the effects of this effort. <o:p></o:p></P>
  <P class=MsoPlainText><o:p>&nbsp;</o:p></P>
  <P class=MsoPlainText>Your response will be very helpful in our research. 
  Thank you very much for your time in advance. I look forward to hearing from 
  you soon.<o:p></o:p></P>
  <P class=MsoPlainText><o:p>&nbsp;</o:p></P>
  <P class=MsoPlainText><o:p>&nbsp;</o:p></P>
  <P class=MsoPlainText>Regards,<o:p></o:p></P>
  <P class=MsoPlainText><o:p>&nbsp;</o:p></P>
  <P class=MsoPlainText>Mohammed Aziz<o:p></o:p></P>
  <P class=MsoPlainText><SPAN 
  style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: \
11pt"><o:p>&nbsp;</o:p></SPAN></P>  <P class=MsoPlainText>P.S. This research is \
solely performed for academic   purposes.<o:p></o:p></P>
  <P class=MsoNormal><o:p>&nbsp;</o:p></P>
  <P class=MsoNormal><o:p>&nbsp;</o:p></P></DIV>
  <P>
  <HR>

  <P></P>_______________________________________________<BR>linux-lvm mailing 
  list<BR>linux-lvm@redhat.com<BR>https://www.redhat.com/mailman/listinfo/linux-lvm<BR>read \
  the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/</BLOCKQUOTE></BODY></HTML>



_______________________________________________
linux-lvm mailing list
linux-lvm@redhat.com
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

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