doubt : ALE settings

Hi experts,

I am new to the sap pi and while doing the ALE settings..I came up with a doubt

I have 2 ECC system ..so 2 LS should be created.

so those LS should be creted in there respective server?.

I mean if I have  eccA system with clnt 200 and other eccB is with clnt 400

so LS for clnt 200 should be creted in   eccA and likewise for ECCB..?

or can I create the  LS in either of ECC ..it wont matter?

Thanks in advance