The technical explanation is really quite straightforward Imagine you wanted to remove an integral part of motherboards that affected IO and processing, Next to impossible to do without a full reinstall of the OS  So its a similar scenario for a VNX when the IO module persists in essence it becomes part of the overall board and the only way to do clean up a removal is to do a destructive reimage
Hi,  I have a failure on FC I/O module Ultraflex on VNX5300 which cause SPB to reboot. In log mentioned replace the I/O module.  I have no I/O module now and I need to remove the failure I/O module. I have not found any procedure in USM to remove the I/O module and just there is relpacing I/O module procedure.  How can I remove the I/O module to avoid panic on SPB?
Need to remove FC I/O Module on VNX5300