It is not even listed in the Infiniguard data sheet.

That does not mean that such combination will not work but that it has never been officially tested and approved.

And you do not want to miss that on a 1PB capacity 'device'.

The account manager is saying there are no issues with this device it is just an AFTD and there should be no issues as per below. Does anyone have experience with this device and any material i can read on this with networker. Not sure if i am not putting in correct details but google serach is very thin on this? What potential problems could there be?

FTD - A file type device (FTD) is a basic disk device type that has been available for many years. (FTDs have limited use and support and this chapter describes them for legacy purposes only.)

AFTD - Advanced file type devices (AFTDs), support concurrent backup and restore operations and require the NetWorker DiskBackup Option (DBO) license.

DD Boost devices - DD Boost devices reside on Data Domain storage systems that have the DD Boost features enabled.

Cloud devices - Cloud devices are specific to cloud storage services, such as ATMOS. NetWorker accesses cloud services through a private network

If you query is around Networker DiskBackup Option & Licence, highlighted above - AME are licenced to use Networker via the Capacity Based Model. (19TB Front End Data, if memory serves me correctly?)

With capacity licensing, you can deploy unlimited quantities of the following Networker options and modules to protect up to the amount of licensed capacity:

•    AlphaStor

•    NetWorker clients including the following:

•    Deduplication clients

•    NDMP clients

•    Virtual Edition clients

•    NetWorker Server and Storage Node

•    NetWorker Autochanger Software Module

•    NetWorker Data Domain Device Type, using DD Boost

•    NetWorker Disk Backup

•    NetWorker Dynamic Drive Sharing

•    NetWorker Fast Start

•    NetWorker Module for Databases and Applications

•    NetWorker Module for DB2

•    NetWorker Module for Informix

•    NetWorker Module for Lotus

•    NetWorker Module for MEDITECH

•    NetWorker Module for Microsoft Applications

•    NetWorker Module for Microsoft Exchange Server

•    NetWorker Module for Oracle

•    NetWorker Module for SAP with Oracle

•    NetWorker Module for Microsoft SQL

•    NetWorker Module for Sybase

•    NetWorker SNMP Module

•    NetWorker Virtual Tape Library Option

You would have to create a new AFTD Backup Device within Networker, and then direct backups to the new device.

I think you should read below article and that will help you to get the doubts clarified. 

https://support.infinidat.com/hc/en-us/articles/360002416378-InfiniGuard-3-0-Configuration-and-Best-Practices-Guide-for-NetWorker?mobile_site=true

Best regards 

Karthik