Cisco Cisco Unified Contact Center Enterprise 9.0(1) Guia Da Instalação

Technology Refresh example 2: production HDS/Administration & Data Server upgraded before the Central Controller
upgrade maintenance window

In the second example, the production HDS/Administration & Data Server is upgraded before
the central controller upgrade maintenance window. If a secondary HDS/Administration & Data
Server is not available, a Release 8.0(x) or 8.5(x) temporary HDS/Administration & Data Server
is set up to enable real-time reporting and configuration between the time that the
HDS/Administration & Data Server is upgraded and the time that the CallRouter, Logger, and
Administration & Data Server are brought into service.

For a technology refresh upgrade of an HDS/Administration & Data Server, it is only necessary
to bring the source (existing) HDS off-line during the backup/restore and registry export process.

Note: Instead of configuring and deploying a temporary Release 8.0(x) or 8.5(x)
HDS/Administration & Data Server, you also have the option of bringing the source (existing)
HDS back online. This option is not supported if maximum reporting capacity and functionality
is required during upgrade, since the intent is to upgrade the HDS/Administration & Data Server
well in advance of the Central Controller upgrade maintenance window. If you do choose this
option, ensure the Logger purge setting is long enough to prevent data loss.

None.

Upgrade the production
system to the required
baseline.

None.

1

No impact on the production system.

Create the Active
Directory environment.

None.

2

No impact on the production system.

Set up the new hardware.

None.

3

Required to enable configuration and
real-time reporting until the upgraded

Set up a temporary
Release 8.0(x) or 8.5(x)

1 hour

4

CallRouter, Logger, and

HDS/Administration &
Data Server.

HDS/Administration & Data Server
are brought into service.

If the HDS/Administration & Data
Server is available and the reporting
capacity of two HDSs is not required,
it is not necessary to set up the
temporary HDS/Administration &
Data Server.

Complete this step before the start of
the Central Controller upgrade
maintenance window.

Upgrade the
HDS/Administration &
Data Server.

1 hour + data
migration time

5

Upgrade Guide for Cisco Unified ICM/Contact Center Enterprise & Hosted Release 9.0(1)