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Date:      Sun, 02 Jan 2011 11:56:34 -0800
From:      "Jason C. Wells" <jcw@speakeasy.net>
To:        freebsd general questions <freebsd-questions@freebsd.org>
Subject:   Half a Mirror Backup
Message-ID:  <4D20D872.3020400@speakeasy.net>

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Is using one half of a mirror as a backup a good/bad idea?

I was thinking of rotating drives on a periodic basis as a back up 
method.  You'd get the backup instantly, but rebuilding the mirror with 
the incoming drive would take a little time and leave you vulnerable to 
a small loss of data if a disk failed while the mirror was rebuilding.

Regards,
Jason



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