I get the following error when checking the status of Parallels Plesk Panel from the command line:
# /etc/init.d/psa status
psa dead but subsys locked
What does this error mean?
The error means that Parallels Plesk Panel is stopped, but the lock file exists.
Another way to check the status of Parallels Plesk Panel is by using the command netstat. Here is an example of a correct output if Parallels Plesk Panel is running:
# netstat -antp | grep 8443
tcp 0 0 0.0.0.0:8443 0.0.0.0:* LISTEN 21856/sw-cp-serverd
The lock file of Parallels Plesk Panel on RedHat-like operating systems is /var/lock/subsys/psa.
/var/lock/subsys/psa file manually and start the service in the usual way:
# rm -f /var/lock/subsys/psa
# /etc/init.d/psa start1
Starting Plesk... done
NOTE: The option "start1" allows you to start only Parallels Panel Panel, without other services.
The error log file is
/var/log/sw-cp-server/error_log for Parallels Plesk Panel version 9.x and higher.