User Guide226www.nec-computers.comAppendix C: MaintenanceThis chapter describes the daily maintenance of the server and precautions whenrelocating or storing the server.Making Backup CopiesWe recommend you make backup copies of your valuable data stored in hard disks ofthe server on a regular basis. For backup storage devices suitable for the server andbackup tools, consult with your sales agent.When you have changed the hardware configuration or BIOS configuration, select"System Information Management" and then "Save" of the Off-line MaintenanceUtility to make a backup copy of the system information.Also make a backup copy of the disk array configuration data if your system is in thearray configuration. When your hard disks have been auto-rebuilt due to a failure, it isrecommended to make a backup copy of the configuration data. To make a backupcopy of the configuration data, use the configuration utility that is resident in theFLASH memory on the optional disk array controller board. Refer to the manualsupplied with the board.CleaningClean the server on a regular basis to keep the server in a good shape.Warning■ Do not disassemble, repair, or alter the server■ Do not look into the optical disc drive■ Do not remove the lithium battery■ Disconnect the power plug before working with the serverCaution■ Avoid installation in extreme temperature conditions■ Make sure to complete board installation■ Protect the unused connectors with the protective cap