You can upgrade the Device Adapter snap-in on an Avaya Breeze® platform cluster by using System Manager. When you upgrade a Device Adapter snap-in on an Avaya Breeze® platform cluster, the Device Adapter snap-in is upgraded on all the nodes within that cluster. The Device Adapter snap-in upgrade process is service impacting.

Unlike Avaya Breeze® platform, the Device Adapter snap-in cannot be upgraded as a rolling upgrade. The Device Adapter snap-in upgrade process takes approximately 6 to 8 minutes. During the upgrade, all IP sets that are on active calls work properly; however, new calls cannot be made or received on these sets. The MGCs restart during the upgrade and active TDM calls are lost.

As part of the Device Adapter snap-in upgrade process, new firmware for the MGCs may be present. In this case, the MGCs upgrade automatically. The MGCs restart during the upgrade process, which results in an additional down time.