Large wal_archive folder

Large wal_archive folder

Under ManageEngine > ServiceDesk > pgsql > data > wal_archive there are 607 files (and growing!) all of roughly 16MB.

The first one dates to 04/05/18 which is probably around the time I installed quite a large ServiceDesk patch, we are now up to 9.4 Build 9412.

Is there a way to reduce/remove these files and prevent the issue from continually filling up disk space on the server? I am not sure what the 'wal_archive' is used for, as we just take a full backup from time to time with the backupdata.bat file and also as it is a virtual server it has a live daily backup taking place anyway.

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