Should I worry about the integrity of my linux software RAID5 after a crash or kernel panic?

Posted by Josh on Server Fault See other posts from Server Fault or by Josh
Published on 2010-06-07T22:16:48Z Indexed on 2010/06/07 22:23 UTC
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Filed under:

linux

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ubuntu-server

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software-raid

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raid5

I have a dual core Intel i5 Ubuntu Server 10.04 LTS system running kernel 2.6.32-22-server #33-Ubuntu SMP with three 1TB SATA hard drives set up in a RAID5 array using linux md devices. I have read about the RAID5 write hole and am concerned: if my linux system locks up or kernel panics, should I be assume that the integrety of my data has been compromised and restore from backup? How can I know if the data on the RAID5 array is "safe"?

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