AIX PowerExecutive XA-32Alert on LAN Predictive Failure Analysis XA-64BladeCenter ServeRAID X-ArchitectureChipkill ServerGuide XpandOnDemande-business logo ServerProven xSeriesEserver System xIntel, Intel Xeon, Itanium, and Pentium are trademarks of Intel Corporation in theUnited States, other countries, or both.Microsoft, Windows, and Windows NT are trademarks of Microsoft Corporation inthe United States, other countries, or both.Adobe and PostScript are either registered trademarks or trademarks of AdobeSystems Incorporated in the United States, other countries, or both.UNIX is a registered trademark of The Open Group in the United States and othercountries.Java and all Java-based trademarks are trademarks of Sun Microsystems, Inc. inthe United States, other countries, or both.Adaptec and HostRAID are trademarks of Adaptec, Inc., in the United States, othercountries, or both.Linux is a registered trademark of Linus Torvalds in the United States, othercountries, or both.Red Hat, the Red Hat “Shadow Man” logo, and all Red Hat-based trademarks andlogos are trademarks or registered trademarks of Red Hat, Inc., in the United Statesand other countries.Other company, product, or service names may be trademarks or service marks ofothers.Important notesProcessor speed indicates the internal clock speed of the microprocessor; otherfactors also affect application performance.CD or DVD drive speed is the variable read rate. Actual speeds vary and are oftenless than the possible maximum.When referring to processor storage, real and virtual storage, or channel volume,KB stands for 1024 bytes, MB stands for 1 048 576 bytes, and GB stands for1 073 741 824 bytes.When referring to hard disk drive capacity or communications volume, MB standsfor 1 000 000 bytes, and GB stands for 1 000 000 000 bytes. Total user-accessiblecapacity can vary depending on operating environments.Maximum internal hard disk drive capacities assume the replacement of anystandard hard disk drives and population of all hard disk drive bays with the largestcurrently supported drives that are available from IBM.80 IBM System x3550 Type 7978: User’s Guide