Checking data mover MPD fs free space ....................... WARN | What does that mean and can I still upgrade a VNX 5500 Unified system?

Hi,

I am about to upgrade a VNX5500 Unified to the latest Flare and OE code (currently that is F.L.A.R.E-05.32.000.5.221 File OE-7.1.80.7) and when I run the pre-check script I get the above warning.

Can anyone suggest what is the impact of that warning and is it safe to go ahead and upgrade the system?

Thanks.