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HP Integrity Virtual Machines Version 4.0 Release Notes > Chapter 1 Introduction

New Features and Enhancements in This Version of Integrity VM


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This section describes how the current version of Integrity VM has been enhanced over previous versions. For more information about these enhancements, see the HP Integrity Virtual Machines Installation, Configuration, and Administration manual.

  • Support for HP-UX 11i v3 as a VM Host – including features of HP-UX 11i v3 such as, long user names, host names, and PIDs

  • Guests can run any of the following operating systems:

    • HP-UX 11i v2 (0609 or later)

    • HP-UX 11i v3 — 0703, 0709, 0803, and 0809

    • Windows 2003 Server (Enterprise or Datacenter edition) SP2

    • Red Hat Linux Enterprise Edition Advanced Server Release 4 Update 5

    • SUSE Linux Enterprise Server (SLES) for HP Integrity servers SLES 10 Update 1 and Update 2

  • AVIO support for:

    • HP–UX 11i v3 guests

    • File backing stores for 11i v2 and 11i v3 guests

    • Asynchronous event support for better guest manageability

    • Performance scaling for multi-vCPU configurations

  • HP SIM/VMAN — Facilitates the display and management of HPVM MSE server groups. An API is supported to set and get the name of the MSE server group.

  • 8 vCPUs — Increases scalability of Integrity VM to 8 virtual CPUs, which allows running guests with up to 8 vCPUs to be configured.

  • Proximity support — New hardware division in cells. Cells are divided into two or more Front Side Buses (FSB), called a proximity. Threads on the same FSB/proximity have better performance for in-cache locking than those on separate FSBs. When Integrity VM detects this hardware feature, the scheduler must make every effort to place multi-CPU guests on the same FSB.

  • Disk management and CLI improvements

  • Performance measurements improvements — Addition of the hpvmsar utility to measure performance.

  • APIs for management of HPVM Server groups and distributed guests

  • Legacy and agile device naming support — Adding agile device naming support provided by HP-UX 11i v3.

  • Automatic cell balancing — When the host is predominantly cell local memory, or the guest has the sched_preference flag set to cell, we automatically pick the best fitting locality domain for the new guest. For applications that may perform better with interleaved memory (such as a massively-threaded Java™ configuration), you can override cell selection by specifying ilm.

    NOTE: The use of cell local memory on Integrity Virtual Machine hosts is an experimental feature for this release. In general, you should see performance improvement by using cell local memory when running on cell based systems. If you encounter performance issues with this feature, you should revert back to using 100% interleaved memory. When using cell local memory, we do not recommend using 8-way guests if your cells are 4-way, unless you have allocated enough interleaved memory for such guests.
  • Large page (64K) support on host — Support for 11i v3 larger base page sizes.

  • IPv6 support on HP-UX 11i v2 and 11i v3 guests and HP-UX 11i v3 VM Host — Provides IPv6 support in Integrity VM V4.0.

  • Per-guest capping functionality — Support for a new type of capping, which allows you to set a cap on how much of a CPU a virtual machine can have.

  • OL* AddOnHost — Provides OL* handlers to Integrity VM such that when a cell is added, both the processors and the memory in that cell are added and become available to the host.

  • Concurrent dump on the VM Host — Allows an HP-UX crash dump to be captured on multiple I/O devices using simultaneously-occurring I/O operations in parallel on all the configured dump devices.

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