How to find orphaned images on an Appliance ?

Assuming this is for MSDP, I don't think there is a simple way without Veritas Support involvement; same applies for Build Your Own MSDP. I have run Images on Disk reports to get details of backup images in a pool and correlated this to an OpsCenter custom report with pre and post dedupe sizes which can give some confidence on whether storage capacity used seems reasonable. You can do this also with bpimagelist and a bunch of scripting. You sometimes find unexpected backup images, long retentions etc. Also incomplete SLP operations can prevent expiry of source images.

You should log a case with Netbackup support, they have tool that can search for orphaned images.

Hello,

Kindly refer the below link.

Article URL:http://www.veritas.com/docs/000005365
https://vox.veritas.com/t5/NetBackup/Expired-image-not-clean-from-MSDP-catalog/td-p/551541

Thanks & Regards