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Date: Tue, 16 Sep 2008 14:57:59 -0700
From: malahal@us.ibm.com
Subject: Re: [linux-lvm] Mirrored LV
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Koen Vermeer [koen@vermeer.tv] wrote:
> If I understand you correctly, you're statements are about when the
> 'other device' is failing. Is this right? If so, then the log should
> normally show that everything is synced. In that case, it's not of much
> use in normal operation. Now, when one disk fails, I need to replace it,
> and rebuild the mirror. So again, I don't need it, because I have to
> copy everything anyway. Only when a disk is temporarily gone, it may be
> of some use. Does this make sense?

Yes, it makes sense for temporarily gone devices. Otherwise use corelog
for your lvcreate command and you should be able to create mirrored LV.