GRT Exchange-2013 Backup - Only Disk, no tape ?

Hello Fellas,

We have an environment below:-

NetBackup ver. 7.6.0.1

Clustered Master Server environment - Windows 2008 R2-x64

Exchange - 2013

All Tape backup

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We have got a user's mail box restore request where we have found that due to version limitations NetBackup ver 7.6.0.1 has, we cannot restore a single user mailbox or mail-box items individually. Instead, we have to restore whole Exchange DB and the Exchange-team finds it a tiresome job restoring a single user's emails out of  a complete DB restore.

So we have been told to upgrade the NBU ver to latest 7.6.1.2  or the minimum 7.6.0.3 whereby Exchange 2013 GRT backup is being supported.

Have been going through the various portals and admin guides, got to know that one of the pre-requisties for the GRT backup policy is that it MUST go to disk.

Considering we have tape ONLY backup environment, is the above statement true that we can't take/configure GRT backup/restores unless we start taking back on disk ?

Your quick responses would be highly appreciated.