Had a problem recently where SMVI backups freeze at 89% with the vcenter showing “Netapp create backup” for eternity. Due to the lack of logging until the task actually completes there’s no way to tell what it’s doing. After a bit of googling I discovered that it’s due to the “snapmirror update” option in the backup. The chances are it’s sat there trying to update the snapmirror, but your destination is too small or there’s another problem.