Avaya S8100 Series - Preserving connections during the upgrade

Using the Upgrade Tool to upgrade Communication Manager on Avaya S8700-Series Media Server
254 Upgrading, Migrating, and Converting Media Servers and Gateways
Figure 1: Process to upgrade the active and the standby media servers
Run the Upgrade Tool from the active media server. The Upgrade Tool then upgrades each
target LSP, the media gateways that you selected, and the standby media server. When these
upgrades are complete and the standby media server reboots, an interchange occurs
automatically. The standby media server then becomes active, and the active media server
becomes the standby. The Upgrade Tool continues to run on the same media server as before
the interchange and upgrades itself.
The newly active media server remains active when the upgrades are complete. For the
upgrades that you started before the interchange, no status data is available on the media
server that is active after the interchange. The upgrade status data is available only on the
media server on which the upgrade was started, which is now the standby media server.
To view the current upgrade status after an interchange, log in to the physical IP address or the
host name of the media server that you used to do the upgrade. Do not log in to the alias
address or the alias name for the active media server. When you schedule further upgrade jobs,
you must log in to the newly active media server to run the Upgrade Tool.
!
CAUTION:
CAUTION: After an interchange, do not start another upgrade on the newly active server
until the current upgrade finishes. To see when the upgrade is complete, use the
View Prior option of the Upgrade Tool from the server on which you started the
upgrade.
Preserving connections during the upgrade
The Upgrade Tool automatically preserves connections that are preservable. You do not need
to execute the Pre Upgrade Step in the Maintenance Web pages to preserve connections.
cydclspd LAO 031105
S8700 Server X
(Active Server)
Software on
CD-ROM
S8700 Server X
(Active Server)
Software on
CD-ROM
S8700 Server Y
(Standby Server)
Software installed
from active server
Software loaded from CD-ROM
Interchange occurs
2
1
3
S8700 Server Y
(Standby Server)
S8700 Server X
(Standby Server)
Software on
CD-ROM
4
S8700 Server Y
(Active Server)
Software installed on
standby server