Decide on a Single-Server or Two-Server Upgrade

Choose to use either one or two servers for the upgrade. The upgrade tasks are largely the same, but you will perform the tasks in a different order.

Considerations to help you decide on a method:

• Single-server — Does not require an additional dedicated server for the upgrade. If you do not need to install a new version of Linux, this method may be sufficient. However, STA is not monitoring libraries while you deinstall STA, upgrade STA, and then convert the database. Downtime is longer than with the two-server method.
• Two-server — Requires a second dedicated STA server. This method reduces application downtime since STA can continue to monitor libraries on the old server while you install Linux and STA on the new server. Even with this method, however, STA is not monitoring libraries while you convert the database. The length of downtime depends on the size of your current database.

Single-server Upgrade Process

For the single server method you perform Task 1 through Task 9 in sequential order.

Figure 7-1 Single-server Post-installation Upgrade Task Overview

Description of "Figure 7-1 Single-server Post-installation Upgrade Task Overview"

The single-server upgrade process is:

1. Dump the Old STA Database (Task 1)
2. Transfer the Old Database Dump (Task 2)
3. Deinstall the Old STA Version (Task 3)
4. Install the New Linux Version (Task 4)
5. Install the New STA Version (Task 5)
6. Dump the New STA Database (Task 6) - Optional
7. Transfer the Old STA Database to the STA Server (Task 7)
8. Process and Load the Old STA Database (Task 8)
9. Upgrade the Old Database (Task 9)
10. Reestablish connections to the monitored libraries, and perform necessary manual configuration tasks. Because the old version of STA must be deinstalled before you install STA 2.3.1, you must reenter some user configuration data manually.

Two-server Upgrade Process

In the two server upgrade, the order of the tasks is rearranged and Task 3 and Task 7 are omitted.

Figure 7-2 Two-server Upgrade Task Overview

Description of "Figure 7-2 Two-server Upgrade Task Overview"

The two-server upgrade process is:

1. Install the New Linux Version (Task 4)
2. Install the New STA Version (Task 5)
3. Dump the New STA Database (Task 6) - Optional
4. Dump the Old STA Database (Task 1)
5. Transfer the Old Database Dump (Task 2)
6. Process and Load the Old STA Database (Task 8)
7. Upgrade the Old Database (Task 9)
8. Reestablish connections to the monitored libraries, and perform necessary manual configuration tasks.