HI Nazda,
I am still sailing in the same boat. I am actually sandwitched between IBM and Vmware. I have lot more issues than just 'logical drives not on preffered path'. I had to download and install IBM version of ESXi 5.1 and NOT the VMware version. Besides other 'Latency' issues I still have 'logical drvies....' error, I simply right click over the logical drives and select, 'Redistribute logical drives'. these are all temp fix the reason is, IBM supports ESxi 5.1 on DS3524 but vmware is still testing it out. So eventually I will be installing the Vmware version 5.1 once they support on DS3524. I am enclosing a diagram for you just consider that you do not have Fiber Channel switches if you are directly connecting. page 11.
At least I know that I am not alone, how could IBM support people are not fimiliar with their own product and how about the coordination and coopertation between the two companies......I have no idea, so I stopped wasting my time started to wait till VMware support 5.1 on system storage DS3524. Till then I am following the cabling pattern as on page 11. Hope that helped.
Just to let you know all the support people I spoke to in India had no idea about the IBM version of Vmware 5.1, which had some fixes included for DS3524. More than this I am just doing the experimentation on my own as IBM support simply say its a Brand new product and they have to check their own labs. For the past few months I am simply doing experiments on my own. Just waiting till 5.1 is supported by Vmware on DS3524.