NEC manual 4Express5800/320Fc Active Upgrade User’s Guide

System Prerequisites

•Can tolerate a potential decrease in performance during the upgrade.

For example, if your system contains teamed network adapters that are configured for load balancing or link aggregation, there might be a decrease in network performance when the system is split because the network adapters on the Upgrade Side lose access to the network.

•Are running Express5800/320Fc System Software Release 5.0 or higher.

•Have been updated with the latest firmware to support Active Upgrade technology, including required BMC and VTM updates.

Furthermore, the Active Upgrade process has the following storage requirements:

•All internal hard disks must be configured with RDR and must be duplexed (synchronized) before the upgrade process starts.

•The operating system boot volume and all active Windows operating system components must be located on internal RDR disks. This includes any volumes that contain paging (virtual memory) files for the operating system.

•Any disk that contains software you want to upgrade cannot contain persistent data files for your business-critical applications (those applications that continue to run during the upgrade process). You must store your data files on separate data disks, either internal or external. (Data volumes that reside on the same physical disk as a system or paging volume are also not supported.)

•External storage devices are always considered data disks. You cannot upgrade software on external storage devices, as these devices not available to the Upgrade Side of the system while the system is in split mode.

Also see “Recommendations” on page 2-5for more information.

Related Topics

•Overview

•“Software Upgrade Support” on page 2-1

•“Recommendations” on page 2-5

•“Managing Critical Applications During the Upgrade Process” on page 2-6

•“Pre-Upgrade Tasks” on page 2-7

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