# How to estimate NetFlow, Eventlog, Syslog and other logs storage size in SapphireIMS?

**URL:** <https://community.sapphireims.com/t/how-to-estimate-netflow-eventlog-syslog-and-other-logs-storage-size-in-sapphireims/70>\
**Category:** Log Collectors\
**Tags:** faq\
**Created:** [January 11, 2021, 10:40am UTC](https://community.sapphireims.com/t/how-to-estimate-netflow-eventlog-syslog-and-other-logs-storage-size-in-sapphireims/70 "2021-01-11T10:40:26Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![harish](https://avatars.discourse-cdn.com/v4/letter/h/47e85d/32.png) [@harish](https://community.sapphireims.com/u/harish)\
**Post date:** [January 11, 2021, 10:40am UTC](https://community.sapphireims.com/t/how-to-estimate-netflow-eventlog-syslog-and-other-logs-storage-size-in-sapphireims/70/1 "2021-01-11T10:40:26Z")

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Generally we follow following statistics for calculation of disk space -

1. Network devices and Linux servers Syslog tend to send shorter logs (150-200 bytes/log) while Windows Security logs tend to be much larger (500-1000 bytes/log).
2. NetFlow average size will be around 100-250 bytes per document size.

Example of NetFlow disk space requirement: Assuming FPS is 1000 and average log size is 200 bytes, then average requirement is 1000(FPS) x 200(Bytes) x 86400(Seconds) = 16GB per day.