The system is not accessible via web console giving error "Internal Server Error". This is because the postgres database is not able to start correctly.
The most frequent cause of “internal server error” messages is that one of the postgres database is not running. This is usually due to the /var partition being 100% full.
You can confirm that the partition is full with the CSR and looking at the "df" file or by running the command "df -h".
Sample output of "df -h"
Filesystem Size Used Avail Use% Mounted on
/dev/sda4 4.9G 1.9G 2.8G 41% /
/dev/sda6 2.0G 290M 1.6G 16% /gui
/dev/sda5 4.9G 138M 4.5G 3% /ds
/dev/sda2 68G 68G 0G 100% /var
/dev/sda1 1.5G 12M 1.4G 1% /boot
tmpfs 63G 12M 63G 1% /dev/shm
/dev/sda3 2.7T 470M 2.5T 1% /home
/dev/sdc1 61T 61T 0 100% /pfs
/dev/sdb1 9.6T 3.0G 9.1T 1% /var/lib/solera/meta1
/dev/sdb2 9.6T 3.0G 9.1T 1% /var/lib/solera/meta2
gaugefs 61T 61T 0 100% /etc/solera/flows
Log in to the CLI as root and confirm whether the postgres database is up and running: