3.7.0 HP StorageWorks HP Scalable NAS File Serving Software upgrade guide HP Scalable NAS for Linux (AG513-96005, October 2009)

To retain a level of high availability while the servers are being upgraded, HP
recommends that you divide your servers into two groups and upgrade one group
at a time. Place the servers with higher IP addresses in group 1 (the “high IP group”)
and place the remaining servers in group 2 (the “low IP group”).
This practice ensures that the maximum possible backup nodes are available for
failover during most of the upgrade:
• While you upgrade the high IP group, the cluster, databases, and MxDB-Oracle-
HiAv services will remain active on the servers in the low IP group.
• The initial upgrade of the high IP group is followed by a database shutdown
while the databases are upgraded to 64-bit. Also during this period, the upgrade
of servers in the high IP group is completed and the Virtual Oracle Services are
recreated. When these steps are complete, the cluster, databases, and MxDB-
Oracle-HiAv services will be active on the new 3.7.0 cluster.
• The servers in the low IP group are then upgraded and join the 3.7.0 cluster.
• The database instances can then be redistributed across all members of the up-
graded cluster.
Upgrade procedure
Before starting the upgrade, be sure to review all release notes to become familiar
with changes in the operating system, HP Scalable NAS, and MxDB-Oracle-HiAv.
Following is a summary of the upgrade procedure. Each step is described in detail
later in this chapter.
1. Upgrade the high IP group to the 64-bit operating system and HP Scalable NAS
/MxDB-Oracle-HiAv 3.7.0.
2. Install a 64-bit $ORACLE_HOME for each 32-bit $ORACLE_HOME you want
to upgrade.
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