hi Sathish,  Lun Migration for TDEV is not available with 5874 code, its only available from 5875 and SE/SMC 7.2 and if its just one device, then as Dynamox said dig deeper through SPA or performance manager to identify the bottleneck.  regards, Saurabh Rohilla
Hi Team,  We are using virtual provisioning in our environment.We have allcoated on Thin dev RAID5(7+1)(200GB Hyper) to one of our SQL data base server.Currently they are facing perfomance issues with this Thin device, so they have requested us to migrate the lun from one thin pool to another thin pool.  Our SMC Verion..V7.1.1.2  I have checked in our SMC Console of VMAX Array. The options of Virtual Lun migration features were in greyed out under   tasks view > operations > migration and rep > migrate.  Here my Queations are:  1) How i can explain to them as there is no problem with our Storage array becasue we have allocated Thin device with 200 single lun and our pool utilization also 69%.  2)Once i migrate the Thin device from one thin pool to another thinpool is the is the perfomance problem resolved.?  Please advise!!!many thanks in advace.
TDEV MIGRATION IN V_MAX(5874.248.194)