If you encounter a situation on your ZENworks Primary Servers running SUSE Linux Enterprise Server 11 SP4 or later, where the ZENworks services are not starting, this may be due to the Java services that keep on crashing repeatedly. This also happens specifically with ZENworks 11 SP3 or later.
This can be caused by a recent Linux Kernel update. Make sure that you have the latest Linux Kernel update applied for your specific version of Linux.
As a hint, after updating a Linux Server via the update channels, perform a zypper list-patches command after an update to ensure that there are no further patches to be applied. If there are, perform a zypper update command to ensure that the patches listed are also applied.