Exchange granular enabled backups are currently not supported for differential or cumulative incremental backups.

[dalek74]

Hi,

is possible a workaround for the issue.

now we have to perform only full backups

Thanks

[inn_kam · Accepted solution]

GRT restores from Incrementals are not yet supported

Ref: NBU Exchange Admin Guide

You can restore individual items using GRT from the following types of backups:
■ Full or user-directed backups
Incremental backups are not yet supported.

One forum already asking this question

 https://www-secure.symantec.com/connect/forums/item-restore-exchange-2010-grt-backup-using-netbackup...

[dalek74]

ok,

thanks.

[inn_kam]

You welcome ,