Hello,   Are the hosts connected to some other storage that you want to preserve while you are moving the EQL array?  If you just shutdown the storage, it's similar to pulling out a hard drive while its running.  Most times nothing bad will happen.  But any writes that didn't make it to storage is lost.   Which for applications like SQL or Exchange is not something you'd want.  If you need to keep the server up, stop all applications accessing the volumes, then logout of all EQL volumes first, then shutdown the EQL array.  This will flush any pending writes.   Regards, Don  
I actually have known the procedure on how to shut down the Equallogic PS storage. But I have a question along with the procedure.  Do you really need to shut down the iSCSI Initiator or the Host that is connected to the storage before shutting down the storage controller?  Because we will be moving the Equallogic box to the other rack. I just want to shut down the Equallogic without shutting down the Hosts.
Clean shutdown for EqualLogic PS6100 without shutting down the Host/iSCSI 
Initiator