100GB psa dump files

[Michael Wa.]

Hi there,

today I discovered some psa dump files in the /var/lib/psa/dumps folder.

they are almost 100GB and it seems the are at least 1month old:

-rw-r----- 1 root root 11048232960 Jul 1 2010 backup_info_1007010734.xml.tar
-rw-r----- 1 root root 18643333120 Dec 23 07:54 backup_info_1012230619.xml.tar
-rw-r----- 1 root root 20541706240 Jan 20 07:20 backup_info_1101200534.xml.tar
-rw-r----- 1 root root 20400097280 Jan 31 07:21 backup_info_1101310534.xml.tar
-rw-r----- 1 root root 20560578560 Feb 1 07:17 backup_info_1102010534.xml.tar
-rw-r----- 1 root root 14267033600 Feb 2 11:11 backup_info_1102020919.xml.tar
-rw-r----- 1 root root 14584401920 Feb 14 06:58 backup_info_1102140534.xml.tar

Could someone tell me when such files will be created and if I can delete them? (I assume Yes)
They also do not show up in the Plesk Backend...

many thanks
Michael