Learning Hitachi

So, I have been working almost exclusively with Netapp for five years and am taking a job where I will work with Hitachi VSP, can anyone shed some light on the best way to start learning Hitachi storage? Preferably for free. Netapp offers some free online web based stuff, but I don't have a Hitachi portal account yet. Please any info will be helpful.
Thanks in advance.
Thanks in advance.
Comments
Also, if its the VSP's you'll be touching, I think you really do want to go on the training courses first
also need the same