When restoring a subset of data from a backup set that is larger than 4 terabytes (TB), the restore would say successful even though all the data was not restored
How to Know if You are Affected:
- The backup is of a single volume containing over 4 TB of data
- The restore is a sub-set (not the whole restore set)
- The restore selection must start prior to the 4 TB point and end at or after the 4 TB mark in the backup set
Set the registry value "use fast file restore" to '0' for the duration of the restore. The registry key is located here:
HKLM/Software/Symantec/Backup Exec For Windows/Backup Exec/Engine/Tape Format
Warning: Incorrect use of the Windows registry editor may prevent the operating system from functioning properly. Great care should be taken when making changes to a Windows registry. Registry modifications should only be carried-out by persons experienced in the use of the registry editor application. It is recommended that a complete backup of the registry and workstation be made prior to making any registry changes.