diff --git a/files/initrd/opt/arc/arc.sh b/files/initrd/opt/arc/arc.sh
index 1edfbcab..7c8a900a 100755
--- a/files/initrd/opt/arc/arc.sh
+++ b/files/initrd/opt/arc/arc.sh
@@ -143,7 +143,7 @@ function arcModel() {
         [[ "${DT}" = "false" || "${PLATFORM}" = "epyc7002" ]] && HBAS="x" || HBAS=""
         [ "${DT}" = "false" ] && USBS="x" || USBS=""
         [[ "${M}" = "DS220+" ||  "${M}" = "DS224+" || "${M}" = "DS918+" || "${M}" = "DS1019+" || "${M}" = "DS1621xs+" || "${M}" = "RS1619xs+" ]] && M_2_CACHE="" || M_2_CACHE="x"
-        [[ "${DT}" = "true" && "${M}" != "DS220+" && "${M}" != "DS224+" ]] && M_2_STORAGE="x" || M_2_STORAGE=""
+        [ "${DT}" = "true" ] && [ "${M}" != "DS220+" || "${M}" != "DS224+" ] && M_2_STORAGE="x" || M_2_STORAGE=""
         # Check id model is compatible with CPU
         COMPATIBLE=1
         if [ ${RESTRICT} -eq 1 ]; then