Problems Browsing and Restoring from Block-Level Backups with Synthetic Fulls
Article ID: 59305
Article Type: Troubleshooting
Last Modified:
When you browse a block-level-backup, the browse operation might fail.
Symptoms
● When you perform a live browse of a subclient that is configured for block-level backups, the following error appears in the browse window:
0x80070306:{CRemoteLiveBrowse::HandleBrowseRequest(586)/Live browse enumeration Enumeration failed. Path = \E:\} + {CWindowsFileSystemLiveBrowse::EnumerateItems(77)/W32.774.(One or more errors occurred while processing the request.)-Failed to enumerate items}
● On the MediaAgent that is mounting the volume for the live browse, NTFS corruption errors are logged in the Windows system event logs:
A corruption was discovered in the file system structure on volume \\?\Volume{5db8c54f-8bab-3326-3b89-b85dc3e6b85d}.
A corruption was found in a file system index structure. The file reference number is 0x9000000000009. The name of the file is "
● The backup history of the subclient shows a large discrepancy in application size between synthetic full backups:
Causes
During the indexing operations for block-level synthetic full backups, the blocks might be associated with the wrong job type. This problem is more likely to occur when consecutive synthetic full backup jobs run, and those jobs are interrupted at some point.
Resolution
Updates address the root cause of the problem, and identify backups that are affected by the problem. If discrepancy occurs in the index during the next synthetic full backup, then a full backup is run instead.
Please upgrade to one of the following maintenance releases:
Maintenance Release 16.36 (Updates 2162 and 1904) Maintenance Release 17.23 (Updates 1672 and 1407) Maintenance Release 18.7 (Update 1143)
The fixes are integrated from Feature Release 11.19 onward.
