-
What backup personalities can my backup system use to protect my data?
SUMMARY What backup personalities/identities can my backup system use to protect my data ISSUE There are three different personalities that can be used in data protection. The first is a “Backup System”, which simply does backups. Once backups are done, the data can be pushed to another appliance that has the “Replication…
-
Backup of a Hyper-V cluster times out and fails.
SUMMARY Backup of a Hyper-V cluster will time out and fail if the cluster is not recognized. ISSUE Description Backup of a Hyper-V cluster times out and fails. Resolution One possible reason for this failure is the name of the cluster is not recognized. To protect a Hyper-V cluster, you must add as clients each node and…
-
What's the difference between a differential and an incremental backup? How does the backup type impact recovery?
SUMMARY This article explains the differences between the differential and incremental backup types as well as the restore effects ISSUE Both differential and incremental backups are partial backups, meaning they don't capture all data present on a file system. They only capture data that has changed since a previous…
-
SQL Backups failing with error 'MSDEWriter' is configured as the default writer for SQL Server instead of the 'SqlServerWriter'
SUMMARY When running SQL backups or inventory sync getting error in WBPS logs about MSDEWriter being set as default ISSUE MSDEWriter is being used by SQL instead of SQL VSS Writer and an error is reported in the backup messages stating this must be corrected. FIRST: verify all permissions have been correctly configured per…
-
The appliance may generate misleading alerts when application data is protected at the asset level
SUMMARY The appliance may generate misleading alerts when application data is protected at the asset level. ISSUE When assets containing the application Oracle are registered to the Unitrends appliance, and the Oracle application is successfully detected and appears in the UI, but the Unitrends Application engine is not…
-
Attempts to back up an AHV disk with a capacity that is not a multiple of 1024 bytes may fail
SUMMARY Attempts to back up an AHV disk with a capacity that is not a multiple of 1024 bytes may fail. ISSUE Attempts to back p an AHV disk with a capacity that is not a multiple of 1024 bytes may fail. The error message "disk capacity value is not a multiple of 1024" is evidence of this issue. RESOLUTION To resolve this…
-
The CBT volume filter driver may fail to install on Windows 2008 R2 Core systems
SUMMARY The CBT volume filter driver may fail to install on Windows 2008 R2 Core systems. ISSUE You may notice that your image-level backups are being promoted to fulls, or that the "Would you like to install this driver now?" dialog did not display during the agent install process. These are indications that the CBT…
-
SQL registers via agent, but fails to show up in UI
SUMMARY After upgrading to a recent agent release, some SQL 2008 databases will no longer display as available for backup. It may also be possible to have enabled TLS 1.0 for SQL which may cause a similar effect. ISSUE SQL servers with some versions of SQL 2008 (on any Windows OS) may not properly display SQL databases as…
-
Image Agent backup fails with "DISK Failed to estimate volume"
SUMMARY Image backups with 10.3.0 thru 10.3.2 releases may fail in some rare cases with the message "DISK Failed to estimate volume" The message "Failed to build volume bitmaps. Error 14" may also be seen. ISSUE Image backups with 10.3.0 thru 10.3.2 releases may fail in some rare cases with the message "DISK Failed to…
-
Backups failing - freeze/thaw VSS failures or broken Agent when Antivirus is used
SUMMARY Security software known for either damaging ISSUE Backups fail citing VSS freeze/thaw events and customer is utilizing an Antivirus. GetWriterStatus: USNAPError! GatherWriterStatus call has returned a failure. (VSS_E_WRITERERROR_TIMEOUT) The writer's timeout expired between the Freeze and Thaw events. Please check…