SBS2011 Standard Backup Failure

When trying to run a backup on SBS2011, I keep getting an error.

Backup destination is a 4TB Seagate external USB3.0
Server OS: SBS 2011 Standard

Issue: WHen backup runs, goes well for about 15 minutes then runs into the following error:

"One of the backup files could not be created. The request could not be performed because of an I/O device error."

Event log error code: backup failed 2155348010

Checked fsutil and it lists 4096 as the sector size and I have run an hotfix thats suppose to make sure the system can read that sector as I have read that there may be an issue with the OS not being able to read the sectors unless its at size 512.

Any ideas?
SBSWIZARDAsked:
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Tony GiangrecoCommented:
Try running a backup to a smaller drive like a 2TB external USB drive.
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Olaf De CeusterCommented:
Answers here:
http://msmvps.com/blogs/bradley/archive/2011/10/12/watch-those-2t-backups.aspx

"So to have a drive with a partition greater than 2T you need two things. A 512e drive and GPT."
Western Digital has a formatter you can download to do this.  I am sure Seagate has to.
Hope that helps
Olaf
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David AtkinTechnical DirectorCommented:
How big is your actual data size?  Windows Server Backup will only do upto 2TB.

If its started the backup though then I don't think it is an issue with size.

Have you tried doing a manual backup? have you tried another backup drive?
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SBSWIZARDAuthor Commented:
Thanks TG-TIS. Installing a smaller 2TB drive worked.

Have never come across this before and have been using 4TB for several servers. Thanks
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Tony GiangrecoCommented:
Glad I could help. That's a Bios issue. I've run into it myself.
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