Observer Analyzer : Observer Analyzer : Network Trending : Configuring your network trending settings : How to determine disk space requirements for network trending
How to determine disk space requirements for network trending
Because network trending can consume a lot of disk space, you need to know how much disk space to reserve.
Network trending data consumes hard disk space. Depending on where you store trending data and your storage requirements for network trending data, the network trending data could fill that drive to full capacity—this is a problem. Therefore, determine your typical 24-hour data rate and how many days of trending data you want to retain. The result indicates how much storage space is required.
To determine the amount of space required to store your desired amount of trending data:
1. Determine your typical 24-hour data rate.
Example: 15 MB or 20 GB.
The data rate is amount of trending data collected in one 24-hour period.
2. Multiply your typical 24-hour data rate by the number of days you want to retain.
Example: 15 MB x 365 days = 5.475 GB
Example: 20 GB x 30 days = 600 GB
 
The result is the amount of hard drive space required to retain the trending data.
 
 
You can use the numbers you calculated to inform your decisions when deleting network trending data.