From: Molinero <marianne@masu.dk>
To: linux-raid@vger.kernel.org
Subject: device with newer data added as spare - data now gone?
Date: Fri, 26 Jun 2009 04:46:54 -0700 (PDT) [thread overview]
Message-ID: <24218843.post@talk.nabble.com> (raw)
Hi all
I've lost quite a lot of data on my /home raid partition and I'm wondering
what exactly I did to make it happen. I'd like to know so something similar
won't happen in the future.
I'm pretty much a raid newbie. I setup raid1 on my home server and I'm
guessing that something like this happened. Please tell me if it's possible.
* Some time ago I did something to have one device fail which resulted md3
in having only 1 device.
* Time went by without me noticing (because I suck)
* An update broke my raid setup and gave me a kernel panic (because I suck).
Didn't put the mdadm and raid hooks in mkinitcpio.conf
* Booted a live-cd, mounted the drives and chrooted back into the system and
fixed the mkinitcpio.conf
* Rebooted and noticed that md3 was running with only 1 device
* Added sdb4 to md3 and it then read 1 device with 1 spare
* cat /proc/mdstat started to say "recovery"
* All data from approx. 1 year is gone
I guessing that the old (not updated) device was set as "master" and the
data on the drive (containing newer data) was overwritten by data on the old
device - is this plausible?
If not what exactly did I do to delete all of the data?
It's not the end of the world but it does suck a lot - especially some email
and pictures are gone that I will miss.
Any clarifications will be much appreciated.
--
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next reply other threads:[~2009-06-26 11:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-26 11:46 Molinero [this message]
2009-06-28 19:04 ` device with newer data added as spare - data now gone? Leslie Rhorer
2009-07-01 2:43 ` Roger Heflin
[not found] ` <ab50889f0907010231k2af2f35l7d880187a395b6d0@mail.gmail.com>
2009-07-01 9:32 ` John McNulty
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