ISPConfig 3.0.1 - Monitor - skip readonly filesystems
finally I found the BugTracker ... so I will readd my post here
The Monitor in ISPConfig should not check for free space on the following devices:
- iso9660 CD/DVD mounts
- udf CD/DVD mounts
- read only mounts
Reason: If you add a read only mount like a CD or DVD the monitor will report a false error due to 0 disk space left on that drive Filesystem Type Size Used Available Use% Mounted on ... /dev/sr0 udf 1,4G 1,4G 0 100% /media/backupDVD
To upload designs, you'll need to enable LFS. More information