Preventing low disk space alerts


There are a couple things you can do to reduce the amount of space that reporting takes up.

1. Lower the Data Retention period in Apps > Reports > Data

Obviously, the more time you're keeping reporting data available, the more disk space you're taking up. Data older than the retention period setting is discarded and no longer available to view in the Untangle's Reports app.



2. Limit the number of alerts being logged. The setting for this is in Config > Events > Alerts, under the rule 'Free disk space is low'. The default setting is diskFreePercent < .2, or 20% free disk space; if your appliance has a 500GB hard drive, that's still 100GB of HDD space free. For these larger disks, we usually recommend setting the diskFreePercent condition to .1 (or even smaller!); that would cut down on the number of alerts you'd see and still allow for a pretty sizable amount of free disk space.



If you have command-line access to your Untangle, you can also use this script to clear all currently-stored Reports data, but do be warned that this script can be hard on the disk if it's run frequently. It's better to shorten your retention period and store less data than have to clear it all!

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