One of the disks in our server’s RAID array is generating errors and we’ll be going offline for maintenance until this is fixed. We’ll have the drive swapped out as soon as possible. Please accept our apologies for the inconvenience.

To make sure that we have the right staff available to swap out the faulty drive this maintenance is scheduled for this afternoon.

Update: The disk has been replaced. Again, we are very sorry for this unexpected downtime.