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From: 조완근 <jowkju@postech.ac.kr>
To: linux-lvm@redhat.com
Subject: [linux-lvm] Where is the PE to LE mapping done?
Date: Thu, 8 Jun 2006 21:33:01 +0900 (KST)	[thread overview]
Message-ID: <7121782.1149769981070.JavaMail.root@mail1> (raw)

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Hello, This is my second e-mail.


&nbsp;


Where does the mapping between PE and LE is done? And When happen?


When the new Logical Volume is created based on already built PV and VG, 
is&nbsp; the mapping done?


&nbsp;


In the source code, /lib/metadata/metadata.h, there are&nbsp;"lv_segment" 
&amp; "pv_segment".&nbsp;does the&nbsp;"segment" equal the "extent"??


&nbsp;


Each "physical_volume" struct and "logical_volume" struct has a segment list 
like "pv_segment" and "lv_segment". But there are also "pv_list" and "lv_list". 
How the mapping is done with these structures..??


&nbsp;


One more thing is, "What code do I have to read&nbsp;in the sources to know 
how the mapping is done??"


&nbsp;


Thank you ^^:






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             reply	other threads:[~2006-06-08 12:33 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-06-08 12:33 조완근 [this message]
2006-06-08 14:29 ` [linux-lvm] Where is the PE to LE mapping done? Dieter Stüken

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