iscsi initiator & volumne

So I have x2 HDD's in a Raid config in a netgear storage box.  I have created a iscsi connection between that data to show up as a volume with mapping of B: (backups) and it is 2.7TB in size.  I have been pointing my backups to that target for almost a year.  Backups are failing and I noticed that the reason is because there is not enough space.  The drive is now empty but says there are 800gb used but I cannot find it!  Anybody have ideas on this or used a similar method?
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Pradeep DubeyConsultantCommented:
Have you checked for  System Restore and Shadow Copies on that volume?

Use TreeSize to find out what left in the drive.
tlebeau84Author Commented:
I did.  This is on the Host server so I have no shadow copies on it.  I ended up just reformatting the iscsi drive and keeping the same name.  Now it is back to 2.7TB so backups should just pick back up.  I really need to find a more solid Hyper V backup method!
Pradeep DubeyConsultantCommented:
you can use storagecraft backup solution, its easy to use and other good features like file restore/consolidation of backup images.

It can be used to save backup files to a network location and by doing so you don't have to map drive.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
tlebeau84Author Commented:
Thank you for your time and help!  I will check that out.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows Server 2008

From novice to tech pro — start learning today.