HP-UX 11i v2 to 11i v3 Mass Storage Stack Update Guide

Introduction
HP-UX 11i v3 introduces a new representation of mass storage devices called the agile view. The
central idea of the agile view is that disk and tape devices are identified by the actual object via its
World Wide Identifier (WWID) and not by a path to the device. Paths to a device can change
dynamically, and multiple paths to a single device can be transparently treated as a single virtualized
path, with I/O distributed across those multiple paths. This representation increases the reliability,
adaptability, performance, and scalability of the mass storage stack, all without the need for operator
intervention.
This white paper provides the necessary information for system administrators to update to HP-UX 11i
v3, in particular to the Mass Storage Stack more easily. The key areas addressed in this white paper
are:
• Comprehensive set of links to other MUST READ documents.
• Considerations for Mass Storage Stack update from 11i v2 to 11i v3.
“Read before Updating” to HP-UX 11i v3
Read and become familiar with the following HP-UX 11i v3 documentation before updating from HP-
UX 11i v2.
• For a description of all that has changed or has been added between HP-UX 11i v2 and HP-
UX 11i v3, refer to the HP-UX 11i v3 Release Notes at
http://docs.hp.com/en/oshpux11iv3.html
• For important information for HP-UX 11i v3, refer to the “Read before Installing or Updating
HP-UX 11i v3” document available on the HP Technical Documentation Web Site,
http://docs.hp.com/en/oshpux11iv3.html.
• For details on migration to the HP-UX 11i v3 persistent device files, refer to the “
HP-UX 11i v3
Persistent DSF Migration Guide” white paper.
• For Ignite-UX related documentation, refer to
http://docs.hp.com/en/IUX/
• For an overview of the mass storage stack changes, list of enhanced IO commands and
details on the agile view available in HP-UX 11i v3, refer to the “
The Next Generation Mass
Storage Stack” white paper.
• For an overview of LVM migration from legacy to agile naming model, refer to the “LVM
Migration from Legacy to Agile Naming Model HP-UX 11i v3” white paper at
http://docs.hp.com/en/oshpux11iv3.html#LVM%20Volume%20Manager. See also the “HP-
UX System Administrator’s Guide: Logical Volume Management”
• For the list of supported of I/O cards, refer to the “HP-UX Supported I/O Cards Matrix”
document listed under the I/O Cards product listing section at
http://www.docs.hp.com/en/netcom.html
• For the most current information on I/O cards support details, see the set of Support Matrices
available on the I/O Cards and Networking Software Web page at
http://www.docs.hp.com/en/netcom.html. At the top of the page, click the link for the card
technology you are interested in, and then scroll down to the “Support Matrixes” heading. If
a support matrix for your card technology is unavailable, check the card’s user guide or
release notes.
• For a list of system firmware for I/O adapters with HP-UX 11i v3 boot support, as well as the
minimum firmware requirements for HP-UX 11iv3, refer to the documents for HP-UX 11i v3 at
http://docs.hp.com/en/hw.html#System%20Firmware or the Business Support Center Web
Site at
http://www.hp.com/go/bizsupport.
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