How to identify a failed disk prior to replacement? Last updated Save as PDF Share Share Tweet Share Views:19,416Visibility:PublicVotes:20Category:disk-drivesSpecialty:hwLast Updated: Applies to ONTAP 9 Data ONTAP 8.2.5 Description How to identify a broken or defective disk. Disk broke or failed and the LED is not red. Identify the slot in which a faulty disk drive resides.