Notations Used in This DocumentExpress5800/R320c-E4, R320c-M4 User's Guide 5Notations Used in This DocumentNotations used in the textIn addition to safety-related symbols urging caution, 3 other types of notations are used in this document. Thesenotations have the following meanings.Important Indicates critical items that must be followed when handling the hardware or operatingsoftware. If the procedures described are not followed, hardware failure, data loss, andother serious malfunctions could occur.Note Indicates items that must be confirmed when handling the hardware or operating software.Tips Indicates information that is helpful to keep in mind when using this server.Optical disk drivesThis server is equipped with one of the following drives, depending on the order at the time of purchase. Thesedrives are referred to as optical disk drives in this document. DVD-ROM drive DVD Super MULTI driveHard disk drivesUnless otherwise stated, hard disk drives (HDD) described in this document refer to the following. Hard disk drives (HDD)Removable mediaUnless otherwise stated, removable media described in this document refer to both of the following. USB memory Flash FDD