On installing the Red Hat Storage Server from an ISO or PXE, the kexec-tools package for the kdump service gets installed by default. However, the crashkernel=auto kernel parameter required for reserving memory for the kdump kernel, is not set for the current kernel entry in the bootloader configuration file, /boot/grub/grub.conf. Therefore the kdump service fails to start up, with the following message available in the logs.
kdump: No crashkernel parameter specified for running kernel
Workaround: After installing the Red Hat Storage Server, the crashkernel=auto, or an appropriate crashkernel=<size>M kernel parameter can be set manually for the current kernel in the bootloader configuration file. After that, the Red Hat Storage Server system must be rebooted, upon which the memory for the kdump kernel is reserved and the kdump service starts successfully. Refer to the following link for more information on Configuring kdump on the Command Line
Additional information: On installing a new kernel after the installing Red Hat Storage Server, the crashkernel=auto kernel parameter is successfully set in the bootloader configuration file for the newly added kernel.