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HP XC System Software Installation Guide Version 4.0

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Table 9-2 Upgrade Characteristics (continued)
DescriptionCharacteristic
If a node or nodes is in the DOWN state during the upgrade, you must
reimage those nodes as soon as they are returned to operation.
Affect on nodes that are down
You cannot add or remove nodes during the upgrade process.Affect on number of nodes
9.1.4 Upgrade Commands
Table 9-3 lists the commands and utilities that are run as part of a software upgrade process.
Table 9-3 Commands Used During the Upgrade Process
DescriptionCommand or Utility Name
Prepares the system for the upgrade.
preupgradesys
Backs up the existing configuration and management database and
migrates existing data to the new release format.
upgradesys
Reconfigures the system after the upgrade. You have the option to
migrate the existing configuration or apply the new default role
assignments to the existing configuration.
cluster_config [--migrate|--init]
9.1.5 Upgrading Existing HP XC Version 3.n Clusters With SFS to HP XC Version
4.0
If you are upgrading an existing HP XC Version 3.n cluster to HP XC Version 4.0, you must
upgrade your SFS server software to Version 2.3 and upgrade the SFS client software to the
appropriate SFS client package (see Table 5-2 (page 81)) .
See the SFS documentation to upgrade the SFS server and client or contact your local HP SFS
support center.
You must perform the SFS server upgrade first, and then perform the upgrade to XC Version
4.0 by following the upgrade instructions in this chapter.
If you are upgrading your existing HP XC Version 3.n cluster to HP XC Version 4.0, you cannot
upgrade to SFS G3.0-0 unless your hardware meets the requirements for SFS G3.0-0.
9.2 Preparing for the Upgrade
Perform the following tasks before you begin the upgrade process. Make sure you are logged in
as the root user on the head node.
1. Use the information listed in Table 9-4 to ensure that your system meets all requirements.
Your system must meet all requirements for an upgrade to be successful.
9.2 Preparing for the Upgrade 139