We will be upgrading SQL services on MSSQL1/2 tonight between the hour of 8pm and 8am tomorrow. We are going to be doing a complete upgrade of OS, and of SQL Server versions. To ensure data reliability we will be stopping the SQL services to complete the upgrades, which will mean they may be inaccessible for between 2-6 hours timeframe. We will also be keeping a close eye on all logs to see if any errors in the process, and get them resolved ASAP if they are seen upon the first DB connection to the new servers. These upgrades are being done to modernize and upgrade the network and servers.