6.1 Site Upgrade Execution

With Auto Site Upgrade, upgrade is initiated by expanding Administration selecting Software Management and clicking on Upgrade screen. On initial entry to this screen, the user is presented with a tabbed display of the NOAM server group and SOAM sites (Figure 6-2).When the NOAM server group tab is selected (as shown in Figure 6-2), this screen is largely unchanged from the upgrade screen of previous releases. The NOAM server group servers are displayed with the usual assortment of buttons. On this screen, the Auto Upgrade button refers to Automated Server Group upgrade, not Automated Site Upgrade. The site upgrade feature becomes available once a SOAM server group tab is selected. The SOAM server group tabs correspond to the topological sites (TSites).

Figure 6-2 Site Upgrade — NOAM View

On selecting a SOAM site tab on the Upgrade Administration screen, the site summary screen displays (Figure 6-3). Just below the row of NOAM and SOAM tabs is a row of links related to the selected SOAM site. The first link on the site summary screen displays the Entire Site view. In the entire site view, all of the server groups for the site are displayed in table form, with each server group populating one row. An upgrade summary of the server groups is provided in the table columns:

• The Upgrade Method column shows how the server group is upgraded. The upgrade method is derived from the server group function and the bulk availability option (see section Site Upgrade Options for additional details on bulk availability).
• The Server Upgrade States column groups the servers by state, indicating the number of servers in the server group that are in each state.
• The Server Application Versions column indicates the current application version, indicating the number of servers in the server group that are at each version.

Figure 6-3 Site Upgrade — Entire Site View

Figure 6-4 Site Upgrade — Entire Site View

For a server to be considered Ready for upgrade, the following conditions must hold true:

• Server has not been upgraded.
• The FullDBParts and FullRunEnv backup files exist in the filemgmt area.

A site is eligible for Auto Site Upgrade when at least one server in the site is upgrade ready.

Click Site Upgrade from the Entire Site view to display the Upgrade Site Initiate screen (Figure 6-5). The Site Initiate screen shows the site upgrade as a series of upgrade cycles. For the upgrade shown in Figure 6-5, Cycle 1 upgrades the spare and standby SOAMs in parallel.

Note:

This scenario assumes default settings for the site upgrade options. These options are described in section Site Upgrade Options.

The specific servers to be upgraded in each cycle are identified in the Servers column on the Site Initiate screen. Cycle 1 is an atomic operation, meaning Cycle 2 cannot begin until Cycle 1 is complete. Once the standby SOAM are in the Accept or Reject state, the upgrade sequences to Cycle 2 to upgrade the active SOAM. Cycle 2 is also atomic - Cycle 3 does not begin until Cycle 2 is complete.

Figure 6-5 Site Upgrade — Site Initiate Screen

Cycles 3 through 4 upgrade all of the C-level servers for the site. These cycles are not atomic.

In Figure 6-5, Cycle 3 consists of SDS-DP1 and SDS-DP2 and Cycle 4 consists of SDS-DP3 and SDS-DP4.

The site upgrade is complete when every server in the site is in the Accept or Reject state.

In selecting the servers that will be included with each upgrade cycle, particularly the C-level, consideration is given to the server group function, the upgrade availability option, and the HA designation.

Note:

The minimum availability option is a central component of the server selections for site upgrade. The effect of this option on server availability is described in detail in Minimum Server Availability.

To initiate the site upgrade, a target ISO is selected from the ISO pick list in the Upgrade Settings section of the Site Initiate screen (Figure 6-5). Once the OK button is clicked, the upgrade starts, and control returns to the Upgrade Administration screen (Figure 6-6). With the Entire Site link selected, a summary of the upgrade status for the selected site displays. This summary identifies the server group(s) currently upgrading, the number of servers within each server group that are upgrading, and the number of servers that are pending upgrade. This view can be used to monitor the upgrade status of the overall site. More detailed status is available by selecting the individual server group links. The server group view shows the status of each individual server within the selected server group.

Figure 6-6 Site Upgrade Monitoring

When a server group link is selected on the Upgrade Administration screen, the table rows are populated with the upgrade details of the individual servers within that server group (Figure 6-7).

Figure 6-7 Server Group Upgrade Monitoring

Upon completion of a successful upgrade, every server in the site is in the Accept or Reject state (Figure 6-8).

Figure 6-8 Server Group Upgrade Monitoring

See Cancel and Restart Auto Site Upgrade for a description of canceling and restarting the Auto Site Upgrade.