while it can be done from Unisphere there is a much better way to do it from the cli  naviseccli -h ss1_spa trespass <>  all  Trespasses all LUNs in the system.  lun lun-number Trespasses one LUN (specified by lun-number).  mine Performs whatever trespassing is necessary to take all of the LUNs that have this SP as a default owner.
Hi  I have been given the task of moving a number of Trespassed LUNS (about 50) on Clariion CX4-960.  Would someone answer the following question:     Many Thanks  EMC Newbie
Clariion CX4-960 - Moving a number of Trespassed LUNs