The Swiss Institute of Bioinformatics e-Learning module: High Performance Computing in Life Sciences covers these topics: motivation (i.e. why use HPC?), general HPC concepts, job submission scripts, and file management and storage.
Material that accompanies the following hands-on workshops is also useful (however bear in mind that you will not have access to the HPC systems that are described in the tutorials as these are provisioned for hand-on training events):