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tr9sh
Asked: 2019-03-06 02:12:29 +0800 CST

How to wipe a RAID 5?

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I want to wipe all data from a raid5 but continue using it afterwards. A single pass of overwriting would be enough. How can I do this?

Would this wipe only the data, or also the raid superblock?

dd if=/dev/zero of=/dev/md0p1
raid raid5

1 Answers

  1. That would wipe it all. This might be a little faster:

    dd if=/dev/zero of=/dev/[DESTROY ME] bs=1M

    If you want to zap it with randomly generated data please see, https://superuser.com/questions/792427/creating-a-large-file-of-random-bytes-quickly

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