PurgeWhenFull

About

PurgeWhenFull is a filter which deletes (at default settings) 100 events when the DiskPercent is 90% full. /usr/bin/zmfilter.pl Is the perl script which calls PurgeWhenFull.

Configuration

It's necessary to tune PurgeWhenFull, if you have a larger system, or you are creating a lot of events. Essentially, if you are making more than 100 events between the PurgeWhenFill commands you will get a full HDD. Set it to 1000 and put the disk percent at 50% when starting a new system. Watch to make sure it doesn't go over 50%.

Cleaning up a 100% Full HDD

If you have gotten the disk space full, you will notice that all new events being created are given a time of 00:00. To clean this up:

• Run a filter manually, to delete 1000 events with less than 1 time. You can usually click the delete, then click the delete

again. It will not require you to go back to the filter screen each time.

then

• /usr/bin/zmaudit.pl

and clean up the items in the HDD that do not have corresponding events in the DB. If you've already filled the DB with 00:00 events.

• Finally check off OPT_FAST_DELETE in the config, so that when events are deleted, it instantly deletes the images, instead

of waiting for zmaudit.pl to cleanup later.