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Ole Tange
Asked: 2012-09-04 14:24:47 +0800 CST

Linux software RAID60: Can I have global hot spare?

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As far as I can see Linux has RAID6 and RAID0, but not RAID60. So RAID60 is emulated by creating RAID0 on top of some RAID6s.

It is possible to add a hot spare to each of the RAID6s, but is it possible to add a global hot spare shared by all the RAID6s? If so, how can that be added to existing RAID6s that are currently assembled automatically (no mdadm.conf)?

linux

1 Answers

  1. From http://www.kernelhardware.org/linux-add-share-hot-spare-device-software-raid/

    1. Use mdadm to hot add the new drive partition to the RAID Array
    2. Configure mdadm.conf to include spare-group setting
    3. Configure mdadm to run in daemon mode and monitor RAID Arrays

    See the linked article for more in-depth details.

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