Post raid5 setup reboot shows single hard drive failure on ubuntu 12.10?

Posted by junkie on Super User See other posts from Super User or by junkie
Published on 2012-11-02T17:03:29Z Indexed on 2012/11/02 17:08 UTC
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linux

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ubuntu

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raid

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mdadm

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hard-drive-failure

I just set up raid 5 on linux using three HDDs as per a guide. It all went fine until when I rebooted I got the following text: http://i.stack.imgur.com/Zsfjk.jpg.

Does this mean one of my HDDs has failed? How do I check if any of them are failing? I tried using smartctl and didn't see any issues. Or is it nothing to do with failure and something else altogether? I would like to get the raid 5 working again but I'm not sure where to go from here.

I'm using ubuntu 12.10 and the three raid disks each have a gpt partition with a single full size partition of filesystem type ext4. Note I only got an error on reboot not while I was creating the raid array which went fine.

Thanks.

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