troubleshooting Question

3TB WD external hard drive -GPT or MBR? Symantec Backup Exec GRT fails on one type of hard drive.

Avatar of itadminuk
itadminuk asked on
Windows Server 2008Storage SoftwareStorage
15 Comments1 Solution2673 ViewsLast Modified:
I am running Symantec Backup Exec 2010 R2 SP1 and am getting a job failed with exception 'failed to mount one or more virtual disk images' when trying to run a GRT application and file level backup of a hyper-V server. Both host and guest are running 2008 R2 SP1.

I only get this error on one particular type of usb external drive - WD 3TB Drives- my 1TB and smaller drives work perfectly.

I have been informed by Symantec that they do not support hyper-V GRT level backups to a GPT disk.
My confusion is that when initially inspecting the disk in disk management, even though it had a 3TB partition, it showed as MBR -   but I am aware that the maximum size for an MBR partition is 2TB.
I deleted volumes and converted to GPT (tested job, still failed) and back to MBR, and now it gives me two partitions, one 2TB, and one 750GB or so - however job still failing.

Does anyone have any pointers at all?
Many thanks in advance

Our community of experts have been thoroughly vetted for their expertise and industry experience.

Join our community to see this answer!
Unlock 1 Answer and 15 Comments.
Start Free Trial
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 15 Comments.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros