IBM z/OS manual Exploiting New Technology

–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 reliability and performance of the VMRM service virtual machine’s monitor data handling

–serviceability enhancements including improved mes- sages, logfi le entries, and new server options

•Simulating virtual FICON CTCA devices for guest oper- ating systems enhances previous virtual-CTCA support by adding the FICON protocol as an option for guest operating systems. Guests use virtual CTCAs to commu- nicate among themselves within a single z/VM system image, without the need for real FICON CTCAs.

•Supporting real and virtual integrated 3270 console devices. Real support enables this device, provided by the Hardware Management Console (HMC) to be used as the system operator console. Virtual support enables testing of guest operating systems and utilities such as Stand-Alone Program Loader (SAPL) and standalone DASD Dump-Restore (DDR), that support the integrated 3270 console device.

•Delivering the Performance Toolkit for VM™ to process Linux performance data obtained from the Resource Management Facility (RMF) Performance Monitoring (PM) client application, rmfpms. Linux performance data obtained from RMF is presented on display screens and in printed reports similar to the way VM data is viewed and presented.

With corresponding function available in Linux on zSeries and S/390, z/VM 4.4 provides:

•The attachment of Small Computer System Interface (SCSI) devices to guest Linux images using Fibre Chan- nel Protocol (FCP) channels on zSeries processors

•IPL from FCP-attached disks for Linux and other guest operating systems with necessary SCSI support, when z/VM is running on a z990, z890, z900, or z800 server equipped with the SCSI IPL Feature Enabler

•Enhanced page-fault handling

•Clear-key RSA functions of the IBM PCI Cryptographic Coprocessor (PCICC) or the IBM PCI Cryptographic Accelerator (PCICA) z/OS.e, OS/390, TPF, VSE/ESA, z/VM 3.1, or VM/ESA are not supported nor can they operate on IFL processor features. Only Linux workloads in an LPAR or Linux guests of z/VM V4 can operate on the IFL processor feature.

Exploiting New Technology

z/VM provides a highly fl exible test and production environ- ment for enterprises deploying the latest e-business solutions. Enterprises that require multi-system server solutions will fi nd that z/VM helps them meet the demands of their businesses and IT infrastructures with a broad range of support for such operating system environments as z/OS, z/OS.e, OS/390, TPF, VSE/ESA, CMS, and Linux on zSeries and S/390. The ability to support multiple machine images and architectures enables z/VM to run multiple production and test versions of zSeries and S/390 operating systems, all on the same system. z/VM

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