How to use the HP-UX Portable Image Tool for Integrity fluid cross-technology moves

ManualsBrandsHP ManualsSoftwareHP-UX vPars and Integrity VM v6

Technical white paper

How to use the HP-UX Portable Image Tool

for Integrity fluid cross-technology moves

HP-UX Portable Image Tool

Table of contents

Introduction 2

Logical Server use cases 2

Key challenges 2

High-level architecture 3

HP-UX IO Infrastructure (IOI) 3

Ethernet drivers 4

Data Link Provider Interface (DLPI) 4

Flow of operation 4

An example use case—Preserving VC-assigned MAC addresses in HP-UX

by enabling Portable Image (BL8x0c i2 Field Upgrade Service) 5

Reference 7

Acronyms and glossary 7

Appendix 1—/opt/network/bin/hpuxpitool 9

Summary of content (9 pages)

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Technical white paper How to use the HP-UX Portable Image Tool for Integrity fluid cross-technology moves HP-UX Portable Image Tool Table of contents Introduction 2 Logical Server use cases 2 Key challenges 2 High-level architecture HP-UX IO Infrastructure (IOI) Ethernet drivers Data Link Provider Interface (DLPI) 3 3 4 4 Flow of operation 4 An example use case—Preserving VC-assigned MAC addresses in HP-UX by enabling Portable Image (BL8x0c i2 Field Upgrade Service) 5 Reference 7 Acronyms an
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Introduction Most modern data centers are composed of heterogeneous server environments with servers from multiple vendors of different types, generations, and product families. Fluid cross-technology logical server moves allow you to choose server configurations that make the most sense for your environment without having to consider the mechanics of moving images and the underlying technologies.
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High-level architecture The HP-UX PI product consists of the following components: • HP-UX PI shared library (/usr/lib/hpux32/libhpuxpi.so)–provides private API to enable/disable PI functionality, add/remove/search MAC addresses in KRS, save and update PI configuration in KRS, and fix driver configuration file. PI library interacts with DLPI to determine factory MAC address of all physical NIC and have support for message catalogs and logging messages to NetTL.
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Ethernet drivers Hardware dependent modules (HDM) determine the MAC address of the networking device and sets the Infrastructure LAN (ILAN) interface data structure. ILAN then invokes the new GIO interface with the MAC address of the device to reassign the PI configuration based on the MAC address. If an instance number has been reserved for this MAC address, GIO reassigns the PI configuration instance number to this MAC address.
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An example use case—Preserving VC-assigned MAC addresses in HP-UX by enabling Portable Image (BL8x0c i2 Field Upgrade Service) The HP-UX Portable Image product is installed and enabled on the blade server before the upgrade of a BL860c i2 to BL870c i2 Blade Link Domain configuration. This is also applicable in using blade additions and combinations to upgrade to a BL890c i2 server blade.
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Post-upgrade procedure for PI 1. Dump the new PI state to a file for possible use later. Obtain the dump by executing the following command: /opt/network/bin/hpuxpitool –g This will list out each network instance along with its post-upgrade MAC address. 2. Disable PI by executing the following command: kctune gio_portable_image=0 You should see the following: Tunable gio_portable_image (before) (now) Value 1 0 Expression 1 0 Changes Immed Or /opt/network/bin/hpuxpitool -d 3.
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Reference HP Insight Management http://h18004.www1.hp.com/products/solutions/insightdynamics/info-library.html Acronyms and glossary Term Definition HPVM Hewlett Packard Virtual Machine, internal code name for Integrity VM Hypervisor A hypervisor is a module which allows multiple OS instances to run on a single hardware platform. In Integrity VM, the PMAN is the hypervisor.
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Acronym Definition CMS Central Management Station CSO Checksum Offload DLPI Data Link Provider Interface EFI Extensible Firmware Interface ESI EFI State Information–special format on legacy zx2 blades that contains EFI variable store and some non-volatile information from the blade GIO General Input Output. Refers to the generic module in the I/O subsystem. The kernel interfaces with the I/O subsystem through this module.
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Appendix 1—/opt/network/bin/hpuxpitool getcfg (or) –g : Retrieve PI configuration from persistent KRS database savecfg (or) –s: Save PI configuration (invoked by shutdown script) to persistent KRS database – Loads the HP-UX PI shared library and invokes the HP-UX PI API to save HP-UX PI configuration based on the list of networking interfaces currently configured on the system updatecfg (or) –u: Update PI configuration and fix driver configuration file (invoked by startup script) to persistent KRS database