Sun Fire E2900 Identify faulty Internal HDD physically

Dear All,

I have one HDD witch encounter hard error on solaris 10

I can identify that disk via solaris 10 OS with format and iostat command

bash-3.00# format
Searching for disks...done
AVAILABLE DISK SELECTIONS:
       0. c1t0d0 <drive not available>
          /ssm@0,0/pci@18,600000/scsi@2/sd@0,0
       1. c1t1d0 <SUN146G cyl 14087 alt 2 hd 24 sec 848>
          /ssm@0,0/pci@18,600000/scsi@2/sd@1,0


iostat -En | grep -i hard
c1t0d0           Soft Errors: 0 Hard Errors: 2 Transport Errors: 2310


But i don't know how to identify physically that disk because the faulty led is not lit.
I urgently need your help.

Best regards.