STATUS:
Change Request SSB-3050 and has been raised with our Product team for consideration of inclusion within a future release of syslog-ng Store Box.
WORKAROUND:
As a workaround, the following commands will tell you the information they are looking for:
from the boot shell: # ls -l /mnt/firmware/opt/ssb/var/logspace/name
or
from the core shell: # ls -l /opt/ssb/var/logspace/name