Support levels will be reduced during the annual closure period. Outages will be documented on the GS status board and the IT status board. For detailed information about a particular service please refer to the service portal. The service desk will be closed but can be reached at x77777; calls will be redirected to the appropriate support groups.

Please remember to shut down and power off any equipment that is not required during the annual closure.

GS department services

All services provided by GS requiring human presence (e.g. hostel, car sharing service, shuttle service) will be unavailable during the annual closure. Other services will remain available, but response times for problems cannot be guaranteed.

Heating in buildings on site will be reduced to the levels of weekend operation and should be relatively comfortable.

IT department ervices

Most services provided by the IT Department will remain available. No interruptions are scheduled but, in case of failure, the restoration of services cannot be guaranteed: problems will be dealt with on a best-effort basis. However, please note:

• Experts will be reachable to start investigation of incidents relating to most services within about half a day (except around 24-25Dec and 31Dec-1Jan).
• All network and telecom services will run as usual. The first-line support will operate normally, but no change requiring human intervention will be possible.
• The back-up service will remain operational, but back-ups cannot be guaranteed and file restorations may not be possible.
• For the Castor service, damaged tapes will not be processed.

Urgent problems can be addressed to x75011 computer.operations@cern.ch.

Computer security incidents should be reported to x70500 Computer.Security@cern.ch.