7 Automated Server Group Upgrade

The Automated Server Group (ASG) upgrade feature allows the user to upgrade all of the servers automatically in a server group simply by specifying a set of controlling parameters.

The purpose of ASG is to simplify and automate segments of the SDS upgrade. The SDS has long supported the ability to select multiple servers for upgrade. In doing so however, it was incumbent on the user to determine ahead of time which servers could be upgraded in parallel, considering traffic impact. If the servers were not carefully chosen, the upgrade could adversely impact system operations.

When a server group is selected for upgrade, ASG upgrades each of the servers serially, or in parallel, or a combination of both, while enforcing minimum service availability. The number of servers in the server group that are upgraded in parallel is user selectable. The procedures in this document provide the detailed steps specifying when to use ASG and the appropriate parameters that should be selected for each server group type.

ASG is the default upgrade method for NOAM and SOAM server group types associated with the SDS. DP’s use Auto Site Upgrade feature. However, there may be some instances in which the manual upgrade method is preferred. In all cases where ASG is used, procedures for a manual upgrade are also provided.

Note:

To use ASG on a server group, no servers in that server group can be already upgraded – either by ASG or manually.

SDS continues to support the parallel upgrade of server groups, including any combination of automated and manual upgrade methods.

For SDS Automated Server Group (ASG) upgrade refer the steps as specified in Upgrade Server Administration on SDS 9.0.