active dual controllers in HP-UX environments (400677-002, October 2006)

Migrating from an active/passive single controller to active/active dual controllers in HP-UX environments 3

About this document

This guide provides information about migrating existing HP-UX MSA1000 and MSA1500 installations

from a single-controller, active/passive configuration to a dual-controller, active/active configuration.

Major topics include:

• Overview, page 5

• Preparing for the migration, page 5

• Upgrading the MSA, page 7

• Verifying SAN connectivity, page 11

• Configuring the redundant path, page 12

• Troubleshooting, page 15

Intended audience

This guide is intended for HP-UX administrators and technicians who have experience with:

• HP-UX 11i v1 or HP-UX 11i v2 (32-bit or 64-bit systems)

• HP-UX Logical Volume Manager (LVM), including LVM Alternate Paths (PVLinks)

• HP-UX 11i v1 and HP-UX 11i v2 Serviceguard Clustering

• HP Disk Monitoring software

• HP StorageWorks Modular Smart Array product line, SAN infrastructures, and SAN switch fabrics

HP technical support

Telephone numbers for worldwide technical support are listed on the HP support web site:

http://www.hp.com/support/

Collect the following information before calling:

• Technical support registration number (if applicable)

• Product serial numbers

• Product model names and numbers

• Applicable error messages

• Operating system type and revision level

• Detailed, specific questions

Accessing future product updates

HP strongly recommends that customers sign up online using the Subscriber's choice web site:

http://www.hp.com/go/e-updates

• Subscribing to this service provides you with e-mail updates on the latest product enhancements, newest

versions of drivers, and firmware documentation updates as well as instant access to numerous other

product resources.

• After signing up, you can quickly locate your products by selecting Business support and then Storage

under Product Category.