System panic occurs when deleting duplicate initiators from the igroup: Fri Jun 10 10:25:33 +0200 [NETAPP: scsit_lu_0: sk.panic:alert]: Panic String: protection fault on VA 0 code 0 cs:rip 0x20:0xffff...System panic occurs when deleting duplicate initiators from the igroup: Fri Jun 10 10:25:33 +0200 [NETAPP: scsit_lu_0: sk.panic:alert]: Panic String: protection fault on VA 0 code 0 cs:rip 0x20:0xffffffffa2fe44e4 in SK process scsit_lu_0 on release 9.9.1P7 (C) During an upgrade, an ANDU precheck can return the following message: Duplicate initiators are mapped to the same LUN. Using either the 'lun mapping delete' command or the 'lun igroup remove' command could lead to an outage.