Should we manually add bitmaps ?

Hi,

after a bunch of bad things (RAID6 : clean, degraded), I went to linux-raid on irc where some told me to use write intent bitmaps for better recover when a disk jump out an array (if I get that clear) or in case of power failure etc...

I red some trackers, like here : http://bugtracker.openmediavault.org/view.php?id=669 and this : http://blog.liw.fi/posts/write-intent-bitmaps/

Thing is, if you specify the resolution, it appears that the impact on speed is not so big.

So do we manually need to mdadm --grow --bitmap=internal --bitmap-chunk=256M /dev/md0 via CLI or is it done by default ? Or is it not recommanded ?

Thanks

Sorry, but no one has an answer ?

Thanks.

Any news about those bitmaps on omv 3x ?

Thanks