Front cover IBM System z9 109 Technical Introduction Hardware description Software support Key functions Bill Ogden Jose Fadel Bill White ibm.com/redbooks International Technical Support Organization IBM System z9 109 Technical Introduction July 2005 SG24-6669-00 Note: Before using this information and the product it supports, read the information in “Notices” on page vii. First Edition (July 2005) This edition applies to the initial announcement of the IBM System z9 109. © Copyright International Business Machines Corporation 2005. All rights reserved. Note to U.S. Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents Notices . vii Trademarks . viii Preface . ix The authors . ix Become a published author . ix Comments welcome. .x Chapter 1. Introduction. 1 1.1 Evolution . 2 1.2 z9-109 server highlights . 3 1.3 zSeries comparisons. 4 1.4 z9-109 server models and processor units . 6 1.5 Upgrades. 6 1.6 Considerations . 7 Chapter 2. Hardware overview . 9 2.1 System frames . 10 2.2 Books . 10 2.3 MCM . 12 2.4 Processor units . 13 2.4.1 PU characterizations. 14 2.5 Memory . 14 2.6 I/O interfaces. 15 2.7 I/O cages and features . 16 2.7.1 Physical I/O connections. 18 2.7.2 Coupling connections . 20 2.7.3 Cryptographic functions . 20 2.8 Time functions. 21 2.8.1 Sysplex Timer . 21 2.8.2 Server Time Protocol (STP) . 22 2.9 Hardware Storage Area . 22 2.10 System control . 22 2.11 HMC and SE . 23 2.12 Concurrent maintenance and upgrades . 24 2.13 Internal Battery Feature . 24 2.14 Power and cooling. 24 2.14.1 Cooling . 25 Chapter 3. Key functional elements . 27 3.1 Availability enhancements. 28 3.2 Book removal . 28 3.2.1 Book replacement . 29 3.3 Enhanced driver maintenance . 29 3.4 Redundant I/O Interconnect . 30 3.5 Logical channel subsystems . 30 3.5.1 Spanned channels . 32 3.5.2 Channel definitions in the IOCP statement . 33 3.6 Multiple subchannel sets. 34 © Copyright IBM Corp. 2005. All rights reserved. iii 3.6.1 IOCP example. 36 3.7 OSA for NCP. 37 3.8 GARP VLAN Registration Protocol (GVRP) . 38 3.9 The MIDAW facility . 39 3.10 N_Port ID virtualization . 41 3.11 New and changed instructions . 42 3.12 Branch detection . 42 3.13 Performance factors . 42 3.14 Program-directed re-IPL . 44 3.15 Open exchanges for FCP and FICON . 44 3.16 CHPID mapping . 44 3.17 LPARs . 45 3.18 Hardware Management Console and Support Element . 45 Chapter 4. Software support . 51 4.1 Operating system support . 52 4.2 60 logical partitions . 53 4.3 Single system image . 53 4.4 63.75K subchannels . 54 4.5 Multiple subchannel sets (MSS) . 54 4.6 MIDAW facility. ..