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List:       evms-devel
Subject:    [Evms-devel] Re: implementing BBR
From:       Andrew Schulman <andrex () alumni ! utexas ! net>
Date:       2005-03-28 22:14:09
Message-ID: d29vi3$6ap$1 () sea ! gmane ! org
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>> I'm new to EVMS, but have been playing around with it for a while and am
>> starting to get comfortable with it. One of the things that makes EVMS
>> worth the effort to set up is bad block relocation. I definitely want to
>> use that, but I'm a little confused about the right way to do it.
>> 
>> Here's what I've done so far: I have a disk, sda, with segments
>> sda1,...,sda4 managed by the DOS segment manager. On top of sda3, I've
>> built a segment sda3_bbr, which is managed by the BBR segment manager.
>> Then I've created an EVMS volume from sda3_bbr.
>> 
>> All of this works fine, but I'm not sure if it's right because in the
>> Plugins tab, I see two kinds of BBR: the BBR segment manager, which I'm
>> using, and the BBR feature, which so far I'm not. Several questions come
>> to mind:
> 
> For backward compatibility, EVMS still contains BBR Feature plugin to
> support EVMS volumes which were constructed with BBR Feature.  However,
> creation of BBR Feature objects had been disallowed for quite a long
> time ago (I can't remember the exact EVMS release)

OK.  Thank you, this is helpful to know.  It should say so in the manual
section you referred me to-- I'll file this as a feature request or patch
to the manual page.
 
>> First, if I'm using the BBR segment manager but not the BBR feature, is
>> BBR working? I would expect so, but I'd like to be sure.
> 
> DOS segment --> BBR Segment --> EVMS Volume : Your setup is correct.

Good!  Thanks for your help.
Andrew.




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