[RESOLVED 12:17 PM PST, 4 February 2014] The rolling restarts for the main Second Life server have been completed.
[UPDATED 7:21 AM PST, 4 February 2014] The rolling restarts for the main Second Life server channel are now in progress.
[POSTED 12:05 AM PST, 4 February 2014] We will be performing rolling restarts for regions on the main Second Life server channel on Tuesday, February 4th, beginning at approximately 5:00AM PST. Please refrain from rezzing no copy objects, making inworld L$ transactions and remember to save all builds
Source: http://status.secondlifegrid.net