Hardware¶
Tip
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The hardware requirements to run Zammad effectively vary depending on several factors, for example:
Number of users (especially agents and customers)
Volume of incoming tickets
Usage of channels
Installation type
Used software which is required to run Zammad
There are even many more factors which have influence on the performance. This makes it hard to publish general hardware requirements which are fitting for all use cases. If you don’t want to deal with such things, you should consider our hosted Zammad setup.
However, you can use the following information as a rough guide.
Tip
In any case, more and better hardware ensures that Zammad runs smoothly and the maintenance breaks for updates should be shorter as well.
Note
We can’t make any disk space recommendations, as this highly depends on how you work. Zammad will always try to recognize the same attachments and store it just once.
Minimum Setup¶
For a minimalistic Zammad deployment with a PostgreSQL database server, you should not go below the following values:
2 CPU cores
6 GB of RAM (+4 GB if you want to run Elasticsearch on the same server)
If you run your Elasticsearch instance on a lightweight machine like this and your RAM got exhausted, you could try a less-than-ideal solution like limit the ES heap size.
Example Setup¶
This is a basic setup for up to 40 agents. As mentioned above, it highly depends on many factors, but this can be a good starting point for dimensioning your system.
6 CPU cores
6 GB of RAM (+6 GB if you want to run Elasticsearch on the same server)
Performance Tuning¶
As the number of active users and/or tickets grows, performance will eventually degrade. You should have a look at performance tuning section then, or consider upgrade your setup.