Linux Software RAID: How to fsck on hard drive?

Posted by Rick-Rainer Ludwig on Server Fault See other posts from Server Fault or by Rick-Rainer Ludwig
Published on 2012-09-19T08:57:00Z Indexed on 2012/09/19 9:40 UTC
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Filed under:

linux

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raid

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hard-drive

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software-raid

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fsck

We have a Linux server running with Software RAID1. We see some issues in /var/log/messages like: unreadable sector. I want to perform a complete fsck on the drive to get some more information, but a fsck /dev/md0 brings a clean due to the Software RAID layer in between. How can I check the real hard drive? Do I need to disassemble the whole RAID? How do I deal with the inconsistency in the partition due to the additional Software RAID header?

Does anyone have a good idea for this?

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