IBM z/OS manuale d’uso

August 2004 IBM ^ zSeries 990 and z/OS Reference Guide[...]

2 T able of Contents z/Ar chitectur e page 5 IBM ~ zSeries 990 page 6 z990 Family Models page 10 z990 and z900 Performance Comparison page 12 z990 I/O SubSystem page 13 z990 Channels and I/O Connectivity page 15 Fibr e Channel Connectivity page 17 Open Systems Adapter -Expr ess Featur es (OSA-Expr ess) page 21 HiperSockets page 26 Cryptography page[...]

3 zSeries Overview T echnology has always accelerated the pace of change. New technologies enable new ways of doing business, shifting markets, changing customer expectations, and redefi ning business models. Each major enhancement to technology presents opportunities. Companies that under - stand and prepar e for changes can gain advantage over c[...]

4 The variable data center needs to be able to respond to the ever -changing demands that occur when you sup- port multiple diverse workloads as a single entity . It must respond to maintain the quality of service r equired and the cost of utilizing the resour ces must refl ect the chang- ing environment. The zSeries Intelligent Resour ce Director[...]

5 z/Arc hitecture The zSeries is based on the z/Architectur e ™ , which is designed to reduce bottlenecks associated with the lack of addressable memory and automatically directs r esources to priority work through Intelligent Resour ce Director . The z/Architectur e is a 64-bit superset of ESA/390. z/Architectur e is implemented on the z990 to a[...]

6 Operating System ESA/390 z/Arch Compati Exploita (31-bit) (64-bit) bility tion OS/390 ® V ersion 2 Release 10 Y es Y es Y es No z/OS V ersion 1 Release 2 No* Y es Y es No z/OS V ersion 1 Release 3 No* Y es Y es No z/OS V ersion 1 Release 4 No* Y es Y es Y es z/OS V ersion 1 Release 5, 6 No Y es Included Included Linux on S/390 ® Yes No Yes Yes [...]

7 The new IBM ^ zSeries Application Assist Processor (zAAP), planned to be available on the IBM ^ zSeries 990 (z990) and zSeries 890 (z890) serv- ers, is an attractively priced specialized processing unit that provides strategic z/OS Java execution envir onment for customers who desire the powerful integration advan- tages and traditional Qualities[...]

8 T o support the new scalability of the z990 a new improve- ment to the I/O Subsystem has been introduced to “br eak the barrier” of 256 channels per Central Electronic Com- plex (CEC). This provides “horizontal” gr owth by allowing the defi nition of up to four Logical Channel SubSystems each capable of supporting up to 256 channels givi[...]

9 Each book can support up to 64 GB of Memor y , delivered on two memory cards, and 12 STIs giving a total of 256 GB of memory and 48 STIs on the D32 model. The memor y is delivered on 8 GB, 16 GB or 32 GB memory cards which can be purchased in 8 GB incr ements. The minimum memory is 16 GB. The two memor y cards associated with each book must be th[...]

10 The z990 offers 4 models, the A08, B16, C24 and D32, which can be confi gur ed to give customers a highly scal- able solution to meet the needs of both high transaction processing applications and the demands of e-business. The new model structure pr ovides between 1-32 confi gu- rable Processor Units (PUs) which can be characterized as either[...]

11 Although CBU and On/Off Capacity on Demand can both reside on the server , the activation of On/Off Capacity on Demand is mutually exclusive with Capacity BackUp (CBU) and no physical hardwar e upgrade will be sup- ported while On/Off Capacity on Demand is active. This important new function for zSeries gives customers greater contr ol and abili[...]

12 The perfor mance design of the z/Architectur e enables the entire server to support a new standard of performance for applications through expanding upon a balanced system approach. As CMOS technology has been enhanced to support not only additional processing power , but also more engines, the entir e server is modifi ed to support the increas[...]

13 • Comparing a 16-way z900 Model 216 to a z990 model with sixteen CPs enabled, it is estimated that the z990 model has 1.45 to 1.53 times the capacity of the 216. • Comparing a 16-way z900 Model 216 to a z990 model with thirty-two CPs enabled, and the workload execut- ing on the z990 executing in two 16-way LP ARs, it is estimated that the z9[...]

14 z990 Logical Channel SubSystems (LCSSs) and support for greater than 15 Logical Partitions (LP) In order to pr ovide the increased channel connectivity requir ed to support the scalability of the z990, the z990 channel I/O SubSystem delivers a breakthr ough in con- nectivity , by providing up to 4 LCSS per CEC, each of which can support up to 25[...]

15 Logical Channel SubSystem (LCSS) Spanning The concept of spanning channels provides the ability for a channel to be confi gur ed to multiple LCSSs and therefor e they may be transparently shar ed by any/all of the logical partitions in those LCSSs. Nor mal Multiple Image Facility (MIF) sharing of a channel is confi ned to a single LCSS. The z9[...]

16 channels are enabled on these existing featur es via a License Internal Code (LIC) with a new mode of operation and new CHPID defi nition. FCP is available in long wave- length (LX) and short wavelength (SX) features, though the LX and SX cannot be intermixed on a single feature. Note, the maximum quantity of FICON Express, OSA- Express, PCICA,[...]

17 Fibre Channel Connectivity The on demand operating environment r equires fast data access, continuous data availability , and improved fl ex- ibility all with lower cost of ownership. The new increased number of FICON Express featur es available on the z990 helps distinguish this new server family , fur ther setting it apart as enterprise class[...]

18 links defi ned on the FICON Expr ess SX channel cards ar e up to 500 meters (1,640 feet) and 250 meters (820 feet) for 50 and 62.5 micron multimode fi ber , respectively . The maximum unrepeated distances for 2 Gbps links defi ned on the FICON Express SX channel car ds are up to 300 meters and 120 meters for 50 and 62.5 micron multimode fi b[...]

19 W ave Division Multiplexor and Optical Amplifi ers that sup- port 2 Gbps FICON Express links are: Cisco Systems ONS 15530 and 15540 ESP (LX, SX) and optical amplifi er (LX, SX), Nortel Networks Optera Metro 5100, 5200 and 5300E and optical amplifi er , ADV A Fiber Service Platfor m (FSP) 2000 system and the IBM 2029 Fiber Saver . The raw band[...]

20 FICON cascaded directors have the added value of high integrity connectivity . New integrity features introduced within the FICON Express channel and the FICON cas- caded switch fabric to aid in the detection and reporting of any miscabling actions occurring within the fabric can prevent data fr om being delivered to the wr ong end point. FICON [...]

21 FCP Full fabric connectivity FCP full fabric support means that any number of (single vendor) FCP directors/ switches can be placed between the server and FCP/ SCSI device, thereby allowing many “hops” through a storage network for I/O connectivity . This support along with 2 Gbps link capability is being delivered together with IBM switch v[...]

22 z990 OSA-Express 1000BASE-T Ethernet The new OSA-Express 1000BASE-T Ethernet feature replaces the curr ent Fast Ethernet (10/100 Mbps) feature. This new feature is capable of operating at 10,100 or 1000 Mbps (1 Gbps) using the same copper cabling infrastructure as Fast Ethernet making transition to this higher speed Ether - net feature a straigh[...]

23 Queued Direct Input/Output (QDIO) The OSA-Express Gigabit Ethernet, 1000BASE-T Ethernet and T oken-Ring features support QDIO (CHPID type OSD), which is unique to IBM. QDIO was fi rst intr oduced to the world on the z900, in Communication Server for OS/390 2.7. Queued Direct Input/Output (QDIO), a highly effi cient data transfer architectur e,[...]

24 NON-QDIO operational mode The OSA-Express 1000BASE-T Ethernet, Fast Ethernet and T oken-Ring also support the non-QDIO mode of operation (CHPID type OSE). The adapter can only be set (via the CHPID type parameter) to one mode at a time. The non-QDIO mode does not provide the benefi ts of QDIO. However , this suppor t includes native SNA/APPN, H[...]

25 LP AR Support of OSA-Express For z990 customers or customers who use the Processor Resource/Systems Manager (PR/SM) capabilities IBM offers the Multiple Image Facility (MIF), allowing the shar - ing of physical channels by any number of LP ARs. Since a port on an OSA-Express feature operates as a channel, sharing of an OSA-Express port is done u[...]

26 HiperSockets, a function unique to the zSeries, provides a “TCP/IP network in the server” that allows high-speed any-to-any connectivity among virtual servers (TCP/IP images) and LP ARs within a zSeries system without any physical cabling. HiperSockets decreases network latency and increases bandwidth between combinations of Linux, z/OS and [...]

27 This support gives the user the fl exibility to optimize and tune each HiperSockets to the predominant traffi c profi le, for example to distinguish between “high bandwidth” workloads such as FTP versus lower bandwidth interactive workloads. The HiperSockets function provides many possibilities for improved integration between workloads i[...]

28 In the on demand era security will be a strong r equirement. The zSeries products will continue to addr ess security with announcements and deliveries of products and featur es. The main focus in cryptography will continue to be ver y high and scalable perfor mance for SSL algorithms, and secondly , to provide security-rich, symmetric perfor man[...]

29 a method for key identifi cation, exchange, separation, update, backup, and management. The TKE worksta- tion and 4.0 code level are designed to pr ovide a secure, remote, and fl exible method of providing Master Key Entry and to remotely manage PCIX Cryptographic Coprocessors. zSeries Security Certifi cation Cryptography • z890/z990 PCIXCC[...]

30 The z990 supports concurrent memory upgrade. This capa- bility will allow a processor’ s memor y to be increased with- out disrupting the processor operation. T o take advantage of this capability , a customer should not plan processor storage on the 16 or 32 GB increments. A customer with a Model A08, for example, with 24 GB of storage will b[...]

31 the processors in the takeover site to acquir e processing power requir ed to restart mission-critical production work- loads. GDPS-CBU management helps to minimize manual customer intervention and the potential for errors, which can help reduce the outage time for critical workloads fr om hours to minutes. Similarly , GDPS-CBU management can al[...]

32 • Cryptographic Cards: The PCIXCC and PCICA cards plug in the I/O cage and can be added or replaced con- currently with system operation. • Redundant Cage Controllers: The Power and Service Control Network featur es redundant Cage Contr ollers for Logic and Power control. This design enables nondis- ruptive service to the controllers and vir[...]

33 Although there is a signifi cant value in a single footprint and multi-footprint environment with r esource sharing, those customers looking for high availability must move on to a database data sharing confi guration. With the Parallel Sysplex environment, combined with the W orkload Manager and CICS TS or IMS TM, incoming work can be dynamic[...]

34 • Dynamic ICF Expansion: Dynamic ICF expansion pro- vides value by providing extra CF capacity when ther e are unexpected peaks in the workload or in case of loss of CF capacity in the cluster . – ICF Expansion into shared CPs. A CF partition running with dedicated ICFs needing processing capacity beyond what is available with the dedicated [...]

35 Customers who are inter ested in testing and/or deploy- ing System-Managed CF Structure Duplexing in their sysplex should review GM13-0103, System-Managed CF Structure Duplexing at ibm.com /server/eserver/zseries/ pso or ibm.com /server/eserver/zseries/library/techpapers/ gm130103.html to understand the perfor mance and other considerations of u[...]

36 the options to be considered is locating one of the Sysplex Timers in an intermediar y site that is less than 40 km from one of the two sites (as can be seen in the diagram below). Other potential options can be evaluated when the RPQ is order ed. z990 Theoretical Maximum Coupling Link Speed • ISC-3. InterSystem Channel-3 provides the connecti[...]

37 • ICB-3. The Integrated Cluster Bus-3 is used to provide high-speed coupling communication between a z990 server or CF and a z800/z900 server or CF or between two z800/z900s over short distances (~7 meters). For longer distances, ISC-3 links must be used. The z990 features the STI-3 car d which resides in an I/O cage and provides 2 ICB-3 ports[...]

38 LP AR CPU Management LP AR CPU Management allows WLM working in goal mode to manage the processor weighting and logical processors acr oss an LP AR cluster . CPU resources ar e automatically moved toward LP ARs with the greatest need by adjusting the partition’ s weight. WLM also manages the available processors by adjusting the number of logi[...]

39 On a z990, the scope of Channel Subsystem I/O Priority Queuing is a Logical Channel SubSystem. Channel Subsystem Priority Queuing complements the IBM Enterprise Storage Server capability to manage I/O priority across CECs. With IRD, the combination of z/OS and zSeries working in synergy extends the world-class workload management tradition of S/[...]

40 On the other hand, the GDPS solution based on Extended Remote Copy (XRC), referr ed to as GDPS/XRC, has the attributes of a Disaster Recovery solution. XRC is a com- bined hardwar e and software asynchr onous remote copy solution. The application I/O is signaled completed when the data update to the primary storage is completed. Sub- sequently ,[...]

41 unplanned HyperSwap capability lays the foundation for continuous availability , even in the event of a complete site failure. In the event of a complete failur e of the site where the primary disk resides, the systems in the site with the secondary disks can continue to remain active even though workload running on these systems needs to be res[...]

42 GDPS/PPRC management f or open systems LUNs (Logi- cal Unit Numbers) : GDPS/PPRC technology has been extended to manage a heterogeneous envir onment of z/OS and open systems data. If installations share their disk subsystems between the z/OS and open systems platforms, GDPS/PPRC, running in a z/OS system, can manage the PPRC status of devices th[...]

43 of Sysplex Timers in an Expanded Availability confi gura- tion remains at 40 km (25 miles). Ther efore, to achieve the extended distance of up to 100 km between sites, one of the options to be considered is locating one of the Sysplex Timers in an intermediar y site that is less than 40 km from one of the two sites. Other potential options can [...]

44 Automatic Enablement of CBU for Geographically Dispersed Parallel Sysplex The intent of the GDPS (CBU) is to enable automatic man- agement of the reserved PUs pr ovided by the CBU feature in the event of a processor failur e and/or a site failure. Upon detection of a site failure, GDPS will dynamically add PUs to the confi guration in the takeo[...]

45 Continuous Availability Recommended Confi guration for Parallel Sysplex Note: z990 will attach to 9037-001 or 9037-002. Service for 9037-001 will be discontinued at the end of 2003. Components and assumptions • T wo Coupling Facilities; at least one exter nal or else using System-Managed CF Structure Duplexing • T wo Sysplex Timers • T wo[...]

46 Linux on zSeries Linux and zSeries are a gr eat team. Linux has the same appearance and application programming interfaces no matter what platform it is running on, since it is designed to be platform-independent. When Linux is run on a zSeries server it can inherit the legendary qualities of service that businesses worldwide rely on for hosting[...]

47 – WebSpher e Application Server Advanced Edition V ersion 3.5 – WebSpher e Commerce Business Edition V ersion 5.4 – WebSpher e Host On-Demand V ersion 7.0 and 6.0 – WebSpher e MQ Everyplace V ersion 2.0 and 1.2 – WebSpher e MQ V ersion 5.3 – WebSpher e Personalization Server for Multiplatforms V ersion 4.0 – WebSpher e Personalizat[...]

48 Linux Distribution Partners • SUSE LINUX Product Information at suse.de/en/produkte/susesoft/S390/ • T urbolinux Product Information at turbolinux.com/products/s390 • Red Hat Linux Product Information at redhat.com/softwar e/S390 z/VM Version 4 and V ersion 5 z/VM supports Linux on the mainframe. Within the VM environment, Linux images ben[...]

49 T wo impor tant networking technology advancements are announced in z/VM 4.4 and Linux on z990: • The high perfor mance adapter interrupt handling fi rst introduced with HiperSockets is now available for both OSA-Express in QDIO mode (CHPID=OSD) and FICON Express (CHPID=FCP). This advancement pr ovides a more effi cient technique for I/O int[...]

50 Cryptographic Support for Linux Linux on zSeries running on standard z990, z900, and z800 engines is capable of exploiting the hardwar e cryp- tographic feature pr ovided by the PCICA feature (PCI Cryptographic Accelerator). This enables customers implementing e-business applications on Linux on zSeries to utilize this enhanced hardwar e securit[...]

51 Processor Unit Assignments Model Min. PU* Max. PU SAP Standard Spares Standard A08** 1 8 2 2 B16** 1 16 4 4 C24** 1 24 6 6 D32** 1 32 8 8 *PU can be characterized as CP , IFL, ICF , Optional SAPs, unassigned CPs, and/or unassigned IFLs up to a max number of PUs for the model **Customer will be requir ed to purchase at least one CP , IFL or ICF f[...]

52 z990 Frame and I/O Confi guration Content: Planning for I/O The following diagrams show the capability and fl exibility built into the I/O subsystem. All machines are shipped with two frames, the A-Frame and the Z-Frame and can have between one and three I/O cages. Each I/O cage has 28 I/O slots. I/O Feature T ype Features Maximum ESCON 28 car[...]

53 Channels and channel adapters no longer supported on z990 The following channels and/or channel adapters are no longer supported: • Parallel channels - an ESCON converter is required; IBM 9034 or Optica 34600 FXBT • OSA-2 adapters - use equivalent OSA-Express adapt- ers, for FDDI use 1000BASE-T or Gigabit Ethernet with appropriate multi-pr o[...]

54 CF Level Function 13 Protocol used with fi ber channel expected to be more effi cient than ESCON Helps lower T otal Cost of Ownership (TCO) Only 2 cross site FCP links / ESS requir ed for most workloads Can provide better perfor mance Able to increase distance between sites while maintaining acceptable application per formance One protocol exc[...]

55 zSeries fi ber cabling now of fers three options to addr ess a solution for your fi ber cable installation. Enterprise fi ber cabling offers two additional options to help meet your structured (trunking) envir onments requir ements. zSeries fi ber cabling: • Fiber -optic jumper cabling package will analyze your zSeries channel confi gurat[...]

56 While zSeries servers are supported by a number of dif- ferent operating systems, their most advanced featur es are power ed by z/OS. z/OS is the foundation for the future of zSeries, an integral part of the z/Architecture designed and developed to quickly respond to the demanding qual- ity of service requir ements for on demand businesses. z/OS[...]

57 • Software pricing models designed to support on demand reality z/OS 1.6 is the fi rst r elease of z/OS that requir es the z/Architectur e. This release will only run on zSeries servers (z890, z990, z800, z990) or equivalent servers. z/OS.e z/OS.e is unique for the z800 and z890 providing select function at an exceptional price. z/OS.e is int[...]

58 The IBM JVM processing cycles can be executed on the confi gur ed zAAPS with no anticipated modifi cations to the Java application(s). Execution of the JVM processing cycles on a zAAP is a function of the Software Developer’ s Kit (SDK) 1.4.1 for zSeries, z/OS 1.6, and the Processor Resource/Systems Manager (PR/SM). z/OS Scalability z/OS is [...]

59 The msys for setup dialogs use defaults and best prac- tices values whenever possible and derive low-level values from answers to high-level questions. After the confi gura- tion parameters have been specifi ed, msys for Setup can automatically update the system confi guration dir ectly . The user can see in detail what the changes will be be[...]

60 WLM Improvements for WebSphere z/OS 1.5 can simplify WLM control for W ebSphere. Customers now have the choice to manually defi ne WebSpher e application environments for WLM or have WebSpher e defi ne them as and when r equired. Perfor mance block reporting for enclaves and multi-period classes are designed to pr ovide improved workload bal- [...]

61 availability . This for m of clustering, known as single system image, also provides tr emendous scale. Up to 32 zSeries servers with z/OS can appear as a single image for data sharing applications (see previous section, Parallel Sysplex Clustering T echnology). CICS/VSAM enabled for 24x7 availability DFSMS T ransactional VSAM Services (DFSMStvs[...]

62 z/OS provides systems management functions and fea- tures to manage not only host r esources, but also distrib- uted systems resour ces. These capabilities have a long, successful history of usage by S/390 customers. z/OS has enhanced many of these systems management functions and features to pr ovide more r obust control and automa- tion of the[...]

63 Adv anced System A utomation The unique and rich functions of IBM Tivoli System Auto- mation for OS/390 (SA OS/390) V ersion 2.2 (separately orderable) can ease z/OS management, r educe costs, and increase application availability . SA OS/390 automates I/O, processor , and system operations, and includes “canned” automation for IMS, CICS, Ti[...]

64 With one command, a security administrator can update remote RACF databases without logging on to r emote sys- tems. Throughout the enterprise, RACF commands can be sent automatically to synchronize multiple databases. In addition, RACF can automatically propagate RACF data- base updates made by applications. With RACF , users can keep passwords[...]

65 z/OS SSL support includes the ability for applications to create multiple SSL envir onments within a single process. An application can now modify environment attributes without terminating any SSL sessions already underway . • IPv6 Support: This suppor t allows System SSL to be used in an IPv6 network confi guration. It also enables System S[...]

66 • Support for IPv6 and 64-bit addressing • Peer -to-peer replication provides failover support for server availability . If a primar y master server fails, there is now a backup master to which LDAP operations can be directed. • Large group support helps improve LDAP server perfor - mance when maintaining large access groups contain- ing m[...]

67 Network A uthentication Ser vice • Network Authentication Service provides authentica- tion, delegation and data confi dentiality services which are inter operable with other industry implementations based on the MIT Kerberos V5 r eference implementa- tion. Network Authentication Service, administered with RACF commands, supports both the nat[...]

68 C/C++ IBM Open Class ® Library : As previously announced in Software Announcement 203-131, dated May 13, 2003, the application development support (that is, the head- ers, source, sidedecks, objects, and samples fr om the Application Support Class and Collection Class libraries) is withdrawn from the C/C++ IBM Open Class Library (IOC) in z/OS 1[...]

69 REXX Functions z/OS 1.4 extends the REXX language on z/OS when used in a UNIX System Services zSeries REXX environment. It includes functions for standard REXX I/O and to easily access some common fi le services and envir onments vari- ables. Communication Services z/OS Version 1 Release 6 base elements z/OS Communications Server (Multiprotocol[...]

70 z/OS supports Enterprise Identity Mapping (EIM). EIM defi nes a user’ s security context that is consistent through- out an enterprise, regar dless of the User ID used and regar dless of which platform the user is accessing. RACF commands are enhanced to allow a security administrator to defi ne EIM information for EIM applications to use. T[...]

71 • Separate address space for TN3270 servers • TCP/IP Sysplex health monitoring Network Services benefi ts can include: • Function for on demand Internet and intranet applications • Multivendor , multiplatfor m connectivity • Mainframe class of service over IP networks • Dramatic improvements in TCP/IP performance include optimizatio[...]

72 • More fi le descriptors per UNIX pr ocess are pr ovided in z/OS 1.6, which supports up to 64K per process. • Additional support for 64-bit programming, conditional variables in shared memory , Euro symbol, and superkill support, along with enhancements to the automount daemon and Unicode. UNIX System Services benefi ts can include: • De[...]

73 • Addition of ISHELL support for zFS. • Ability to perfor m I/O operations in parallel for a zFS aggregate that spans multiple DASD volumes. This is designed to provide impr oved perfor mance when using multi-DASD volume aggregates. • Support for 64-bit user vir tual buffer addr esses. The Hierarchical File System (HFS) functionality has b[...]

74 Print Services z/OS Version 1 Release 6 optional priced features Infoprint ® Server – IP PrintW ay ™ – NetSpool ™ – z/OS Print Interface Infoprint Server provides a r eliable, high availability , secure and scalable foundation for customer’ s enterprise printing infrastructure. Infoprint Server and its companion pr od- uct, Infoprin[...]

75 • Data stream transforms let you print AFP ™ applications on printers using PCL, PostScript or PDF . Y ou can also print PCL, PostScript and PDF output on AFP printers. • A transform from SAP to AFP and a certifi ed SAP Output Management System lets you print SAP application output on your fast, reliable AFP printers, and r eceive print c[...]

76 Installation Considerations CustomPac is a suite of services designed to help you effi ciently install, migrate and maintain a z/OS system. It can also help with migrating and maintaining z/OS system- related pr oducts and/or third parties’ software vendor products. Options include: • RefreshPac ® , which includes preventative softwar e se[...]

77 This consistent coexistence, migration and fallback policy applies to release migrations for: • Single system confi gurations • Individual systems within a multisystem confi guration • Cases where a simultaneous IPL is used to migrate all systems in a multisystem confi guration at the same time. For additional information on coexistence[...]

78 Wizards z/OS wizards ar e available on the Internet to help to set up some of the z/OS functions. These wizards ar e interac- tive assistants that ask a series of questions about the task to be perfor med (for example, setting up a Parallel Sysplex environment). The wizar ds can simplify planning and confi guration by exploiting r ecommended va[...]

79 The infrastructure for e-business on demand ™ envir on- ments can be deployed with visionary technology on z/VM, including advanced virtualization, suppor t for open source software, and autonomic computing enhancements. With virtualization technology as its foundation, z/VM continues to provide new function and technology exploitation on the [...]

80 Additional enhancements in z/VM V3 include: • Native FlashCopy for Enterprise Storage Server (ESS) for high-speed data copy • Guest support enhancements for 3494 VTS and FICON attached 3590 A60 T ape Controller Connectivity enhancements for TCP/IP Feature for z/VM: • Improved security with the inclusion of a Secur e Socket Layer (SSL) serv[...]

81 – an interface to dynamically change users in work- loads, workload characteristics, and goals – more fl exibility using the VMRM confi guration fi le when managing multiple users – improvements in the r eliability and perfor mance of the VMRM service virtual machine’ s monitor data handling – serviceability enhancements including i[...]

82 can help simplify migration from one r elease to another , facilitate the transition to newer applications, provide a test system whenever one is needed, and consolidate several to provide virtual access to the latest DASD and processor architectur e for systems that lack such support. New tech- nological enhancements in z/VM 4.4 provide: • Ex[...]

83 – post-processing of Performance T oolkit for VM histor y fi les and of VM monitor data captured by the MON- WRITE utility – viewing of perfor mance monitor data using either Web browsers or PC-based 3270 emulator graphics The toolkit also provides the capability to monitor TCP/IP for z/VM, as well as to process Linux performance data. Appl[...]

84 The guest LAN support provided in z/VM V4.2 simulates the HiperSockets function for communication among virtual machines without the need for real IQD channels, much as VM simulates channel-to-channel adapters for communication among virtual machines without the need for ESCON, FICON, or other real channel-to-channel con- nections. With the gues[...]

85 z/VM Version 5 (V5) z/VM V ersion 5 Release 1 (V5.1) continues the evolution of its premier and world-class zSeries virtualization technology with a new version to offer traditional capabilities to manage zSeries operating systems, including Linux, on a single mainframe as guests of z/VM. z/VM V5.1 is designed to operate only on zSeries servers [...]

86 • PCIX Cryptographic Coprocessor (PCIXCC) support provides z/OS and Linux guest support for the PCIXCC Feature available with the z990 and z890 severs. Deliv- ery of the z/VM PCIXCC suppor t satisfi es the Statement of Direction made on May 13, 2003. • The Systems Management APIs, introduced in z/VM V4.4, provided a basic set of functions t[...]

87 • IPv6 support for guest LANs has been enhanced to allow the z/VM TCP/IP stack to be confi gured for IPv6 networks connected through OSA-Expr ess operating in QDIO mode. The stack can be confi gured to pr ovide static routing of IPv6 packets and to send IPv6 Router Advertisements. In addition, suppor t is being provided to help application d[...]

88 Copyright IBM Corporation 2004 Integrated Marketing Communications, Server Group Route 100 Somers, NY 10589 U.S.A. Produced in the United States of America 08/04 All Rights Reserved References in this publication to IBM pr oducts or services do not imply that IBM intends to make them available in every countr y in which IBM operates. Consult you[...]