potential RAID5 write-hole issue

  • I am planning to create a NAS with OMV and employing raid5 on 6 1TB HDs. In reading a bit about this I have come across the potential RAID5 write-hole problem (http://en.wikipedia.org/wiki/RAID_5_write_hole). I have no plans for using a UPS with this system to mitigate this problem. However, I have seen that one way to help reduce this problem is to recalculate (i.e. synchronize) the parity of the array regularly (http://www.raid-recovery-guide.com/raid ... -hole.aspx). I have searched through these forums but I haven't seen a post on this nor have a I found information as to whether OMV allows parity to be resynchronized with a simple command. Ideally this could be put into a batch job that could be executed at some regular interval. Any information would be greatly appreciated. Thanks.

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