I will be taking doing maintenance on the LHO aLOG today at 12:15pm Pacific. Please have all entries posted to the logbook or saved to a draft before 12:15pm. It will NOT be safe to work on an entry after that point until I have sent an all clear notification (which will include a comment on this aLOG entry). If everything goes smoothly the aLOG will go through a few phases: * total outage (a few minutes) * read only while the system is being verified * back to normal use The work will not extend the functionality of the aLOG. It is a operating system upgrade and a relocation which will be a step towards making the LHO computer users room an overflow for the control room.