# Need clarity in PMM 2 system usage requirements

**URL:** <https://forums.percona.com/t/need-clarity-in-pmm-2-system-usage-requirements/24232>\
**Category:** PMM 2.x\
**Created:** [August 5, 2023, 11:25am UTC](https://forums.percona.com/t/need-clarity-in-pmm-2-system-usage-requirements/24232 "2023-08-05T11:25:18Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![kedarpercona](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/kedarpercona/32/809_2.png) [@kedarpercona](https://forums.percona.com/u/kedarpercona)\
**Post date:** [August 5, 2023, 12:25pm UTC](https://forums.percona.com/t/need-clarity-in-pmm-2-system-usage-requirements/24232/2 "2023-08-05T12:25:41Z")

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Hello @pravata_dash,

I am going to summarize the response for both questions below.  
About minimum requirements documentation says:

> **Memory**  
> A minimum of 2 GB per monitored database node. **The increase in memory usage is not proportional to the number of nodes.** For example, data from 20 nodes should be easily handled with 16 GB.

Note that there it says it is not proportional to number of nodes and hints another estimate of 16G/20 nodes. This way you would be able to monitor 100 instances with 80G.

Review following posts and responses:

> [@PMM requirements for large setup](https://forums.percona.com/t/pmm-requirements-for-large-setup/6543):
>
> Hello, We are investigating PMM as a monitoring system for a large installation (~500+ servers in each DC). And I wanted to ask, is it possible to handle such a big setup on a single PMM server and what capacity (CPU, MEM, HDD) it will require? Maybe you have already some experience with large setups and can point on problems and tuning solutions for them. Thanks, Max

> [@Understanding the PMM Server requirements(CPU and RAM or if any)](https://forums.percona.com/t/understanding-the-pmm-server-requirements-cpu-and-ram-or-if-any/13770):
>
> Hi Team, Can you please help me the system requirements for the below? We need table stats and Query analytics stats as well. pmm-admin add mysql --server-insecure-tls --username=‘mon’ --password=‘XXXXX’ --host=‘prod401’ --port=3111 --service-name=Prod --disable-tablestats-limit=5000 --query-source=slowlog --size-slow-logs=1GiB I am using all the above options for all the 30 servers. so please suggest me accrodingly. Total production DB servers: 30 Please give me the below details? RAM: …

Also we have an old blog but it should surely give you a good enough understanding to estimate:

> **[How much disk space should I allocate for Percona Monitoring and Management?](https://www.percona.com/blog/how-much-disk-space-should-i-allocate-for-percona-monitoring-and-management/)**
>
> I heard a frequent question at last week's Percona Live conference regarding Percona Monitoring and Management (PMM): How much disk space should I allocate for PMM Server?

Thanks,  
K

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