Errors during verify phase of backup to USB Drives on BackupExec 10d

When backing up to external USB drives from Backup Exec 10d it may fail on the verification stage with the following errors:

Final error: 0xe00084c8 – The backup storage device has failed.
Final error category: Backup Device Errors

For additional information regarding this error refer to link V-79-57344-33992

And then…

Final error: 0xe00084c8 – The backup storage device has failed.
Final error category: Backup Device Errors

For additional information regarding this error refer to link V-79-57344-33992

In the application event log there may also be the following:

Event Type: Error
Event Source: Backup Exec
Event Category: None
Event ID: 33808
Date: 06/02/2010
Time: 19:02:25
User: N/A
Description:
An error occurred while processing a B2D command.
Drive: ReadMTFData() ReadFile failed (N:\VERITAS\B2D\B2D001024.bkf). Error=1450

For more information, click the following link:

http://eventlookup.veritas.com/eventlookup/EventLookup.jhtml

Event Type: Error
Event Source: Backup Exec
Event Category: None
Event ID: 57665
Date: 06/02/2010
Time: 19:02:25
User: N/A
Description:
Storage device “Friday N:” reported an error on a request to read data from media.

Error reported:
Insufficient system resources exist to complete the requested service.
.

For more information, click the following link:

http://eventlookup.veritas.com/eventlookup/EventLookup.jhtml

Data:
0000: aa 05 00 00 c8 84 00 e0 ª…Ȅ.à
0008: 00 80 00 00 00 00 00 00 .€……
0010: 92 03 00 00 ’…

Event Type: Error
Event Source: Backup Exec
Event Category: None
Event ID: 34113
Date: 06/02/2010
Time: 19:02:25
User: N/A
Description:
Backup Exec Alert: Job Failed
(Job: “Friday – Backup to N:”) Friday – Backup to N: — The job failed with the following error: The backup storage device has failed.

For more information, click the following link:

http://eventlookup.veritas.com/eventlookup/EventLookup.jhtml

A lot of people have this problem but there seemed to be no definitive answer. For me the following steps solved the problem:

1) From within device manager set the USB drive to “Optimize for performance”:

2) From within Backup Exec Devices – Set the maximum size for Backup-To-Disk files to 2GB

3) From within Backup Exec Devices – Disabled auto-detect device settings and enabled “Buffered Reads” and “Buffered Writes”

There is no clear resolution for this problem. Different settings seem to solve the problem for different systems. This is running on a Dell PowerEdge 2850 / Windows 2003 Standard and 4Gb. Backup size is approx 250Gb.