Flowmon APM storage requirements

Flowmon APM (Application Performance Monitoring) is a software module extension for monitoring application performance from a user perspective. Flowmon APM provides detailed real-time information about all transactions from all users. This document shows the storage requirements for storing transaction information and statistics.

Flowmon APM operates with two types of data:

1. Transaction occurrences – historical data about all individual transactions (table “Instances of transactions” in Flowmon APM).

2. Statistics – aggregated data for graphs and tables, excluding table “Instances of transactions”.

The following table shows the expected storage requirements for all Flowmon APM licensed models considering a maximum number of transaction occurrences per minute.

Expected storage requirements of Flowmon APM models*	Transactions per day	1-month history length
		Transactions	Statistics	Total
Flowmon APM Lite – 500 tr./min	720 k	43 GB	15 GB	58 GB
Flowmon APM Standard – 2,000 tr./min	2 880 k	172 GB	60 GB	232 GB
Flowmon APM Business – 5,000 tr./min	7 200 k	430 GB	150 GB	580 GB
Flowmon APM Corporate – 10,000 tr./min	14 400 k	860 GB	300 GB	1160 GB

*Storage requirements can differ depending on the monitored application. Different URL structure and variability affect transaction size, statistics data aggregation, and thus actual storage requirement.

Old data deletion process:

1. Data is not deleted unless DB_SIZE > QUOTA.

2. The first data that is deleted is transaction occurrences. If transaction occurrences in the database are larger than the VP percent, transaction occurrences are deleted day by day from the first recorded day. VP can be configured in Settings > Advanced > Advanced Settings > Global Settings table > row minRawDataPercent (default is 20%).

3. If deletion of transaction occurrences is not sufficient, the first recorded month of statistics is deleted.