Stop Data Collector and Data Aggregator

Before you upgrade Data Aggregator, stop the Data Collector and Data Aggregator installations.

Follow these steps:

On each computer where Data Collector is installed, open a command prompt and type the following command:
```
/etc/init.d/dcmd stop
```
On the computer where Data Aggregator is installed, open a command prompt and type the following command:
```
/etc/init.d/dadaemon stop
```

More information: