Ajuda na sequencia do script para verificar disco com problemas DELL emc vmax

do
symcfg discover
OUTPUT=`symdisk -sid $SERIAL list -failed | grep "Disks Selected" | wc -l`
if [ $OUTPUT -eq 1 ]
then
echo $SERIAL >> DIR1
echo $OUTPUT >> DIR1
echo "TEM DISCO AVARIADO" >> DIR1
echo "$DATA - Dell EMC VMAX $SERIAL (AVARIAS)" | mailx -s "$DATA - Dell EMC VMAX $SERIAL (Disk-AVARIAS)" -a $DIR1 fernando.souza@ibm.com
else
echo $SERIAL >> DIR1
echo $OUTPUT >> DIR1
echo "NAO TEM DISCO AVARIADO" >> DIR1
echo "$DATA - Dell EMC VMAX $SERIAL (NAO TEM AVARIAS)" | mailx -s "$DATA - Dell EMC VMAX $SERIAL (Disk-NAO TEM AVARIAS)" fernando.souza@ibm.com
fi
done

Sendo que só traz resultado 0

1) 298700723 (disco avariado)
[root@slvmxap01 DEXE]# symdisk -sid 298700723 list -failed
Symmetrix ID : 000298700723
Disks Selected : 1

Capacity(MB)
Ident Symb Int TID Vendor Type Hypr Total Free Actual
------ ---- --- --- ---------- ---------- ---- ---------- ---------- ----------
DF-4A 04A D E HITACHI VCFE060 0 0 0 558281
---------- ---------- ----------
Totals 0 0 558281

2) 298701877 (sem disco avariado)
[root@slvmxap01 DEXE]# symdisk -sid 298701877 list -failed
Symmetrix ID : 000298701877
No devices were found
[root@slvmxap01 DEXE]#