defrag is safe to use, it simply re-arranges data in the raid group. Feel safe to use it with MetaLUNs as well, i kick mine off right before the weekend when it's low activity times.
Hi there,  We are using CX3-80 with Flare R26 we've created some RAID groups with various LUNs and overtime some LUNs have been created and others deleted which means the RAID groups have built up some blank spots within them in various areas.  I did some reading and found the defragement function can be used to realign all the used data next to each other so I can have all the free space at the end of the RAID group.  Has anyone used this feature before since I'm new to this feature and is it destructive on data? Secondly if I'm using metaLUNs which span across a few RAID groups and also some of the RAID groups have blank space will running the defragement where there's metaLUNs in between cause any issues on the metaLUN?   Cheers many thanks.......
cx3-80 R26 defragement