Can't delete RD1000 Storage data

Hi there,

I migrated backupexec 2010R3 > 2015 and it's not really good for me.....

I have a problem with old backup on RD1000 storage (Dell storage cardridge) 2015 don't see it. And the very big problem that's it can't delete it. I must delete manually by formating RD1000. So is it normal ? If a new backup will be made by new version i can delete it normally ? On 2015 i dont delete manually file like 2010R3 ?

Thanks for explain it

Regards