SQL/MX 3.2 Installation and Upgrade Guide (H06.25+, J06.14+)

7 Falling back from SQL/MX Release 3.2
This section describes falling back from SQL/MX Release 3.2 to SQL/MX Release 3.1, SQL/MX
Release 3.0, and to SQL/MX Release 2.x.
NOTE: When using new features, if you encounter an issue that is specific to SQL/MX Release
3.2, discontinue the use of those features instead of falling back from that version.
This section addresses these topics:
• “Fallback paths” (page 46)
• “Fallback sequence” (page 48)
• “Fallback considerations” (page 50)
• “Preinstallation” (page 51)
• “Installing SQL/MX Release 3.0 or Release 3.1” (page 52)
• “Installing SQL/MX Release 2.3.4” (page 53)
• “Accessing the database” (page 53)
• “Installing SQL/MX Release 2.x” (page 54)
• “Migrating applications after system fallback” (page 54)
• “Changes required after falling back” (page 54)
Fallback paths
You can fall back from SQL/MX Release 3.2 to SQL/MX Release 2.3.4 or SQL/MX Release 3.0
or SQL/MX Release 3.1, as shown in Figure 9 (page 46).
CAUTION: Fallback requires a specific 2.3.4 fallback SPR set. Your last version of SQL/MX
2.3.4 might not be suitable for fallback.
Figure 9 Falling back from SQL/MX Release 3.2 to SQL/MX Release 2.3.4 or SQL/MX Release 3.0
or SQL/MX Release 3.1
SQL/MX
R3.2
SQL/MX
R2.3.4
OR
R3.0
OR
R3.1
To fall back from SQL/MX Release 3.2 to a supported SQL/MX Release 2.x version earlier than
SQL/MX Release 2.3.4, you must first fall back to SQL/MX Release 2.3.4 and then to the required
version as shown:
46 Falling back from SQL/MX Release 3.2