Planned upgrade of MySQL servers

On the March 3, 2014 from 6 a.m. to 6:15 a.m. we will perform the planned upgrade of the database servers c149um.forpsi.com (81.2.194.149), c182um.forpsi.com (81.2.194.182) and c183um.forpsi.com (81.2.194183).
The MySQL service could be unavailable approximately for 15 minutes.
Thank you for your understanding.