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Can an incremental forever backup strategy be used with NAS storage?
SUMMARY Can an incremental forever backup strategy be used to protect a mounted NAS storage on a Linux client? ISSUE Description Incremental backups use a journal to track changes in a file system. The journaling process on LInux uses the inotify kernel subsystem to track changes. Inotify will only detect changes on file…
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Creating a snapshot for a virtual machine fails with the error: File is larger than maximum file size supported
SUMMARY Creating a snapshot for a virtual machine fails with the error: File is larger than maximum file size supported ISSUE Applies To VMware ESX/ESXi 4.0 and Later using VMFS3 Symptoms / Description When creating a snapshot for the virtual machine, you experience these symptoms: * In the vSphere Client, you see this…
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Working with client aliases in HTML5
SUMMARY You can create aliases for a single client in order to have multiple backup strategies. By adding multiple alias clients, you can configure separate and radically different schedules for the same client. ISSUE You can create aliases for a single client in order to have multiple backup strategies. By adding multiple…
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VMware Backups Fail with FileAlreadyExists Error
SUMMARY Inform users about VMware Virtual Machine (VM) Backup failures because of not being able to create snapshots and FileAlreadyExists errors. ISSUE The Backups of one or more VMs fail due to the inability to create snapshots. Unitrends needs to create snapshot of a VM in order to perform the Backup of the same. If…
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How to adjust the Linux agent's mynotify watches that are used to determine files to backup in differential and incremental backups
SUMMARY How to adjust the Linux agent's mynotify watches that are used to determine files to backup in differential and incremental backups ISSUE Purpose How to adjust the Linux agent's mynotify watches that are used to determine files to backup in differential and incremental backups Applies To Linux agent 6.1.1+ Symptoms…
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How to uninstall and re-install CBT on Hyper-V
SUMMARY Resetting Hyper-V CBT when incrementals result in the full backup size ISSUE If Hyper-V CBT was never installed correctly it may be necessary to uninstall and then re-install the driver. This may occur when updating to a new agent release. In some other cases, Unitrends Support may recommend removal and…
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SQL backup failures may occur alongside SQL database crashes
SUMMARY SQL backup failures may occur alongside SQL database crashes. ISSUE SQL backup failures may occur alongside SQL database crashes. RESOLUTION To resolve this issue, upgrade your appliance to version 10.0 and upgrade to the latest version of the Windows agent.
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Serious VMware vSphere 6 Changed Block Tracking Bug
SUMMARY Describes a serious CBT bug in vSphere 6.0 environments. ISSUE Description Release 8.1 for Recovery-Series and Unitrends Backup appliances and software will support hypervisor-level backups for vSphere 6. At the time of this KB, internal testing with vSphere 6.0 has exposed a bug in the changed block tracking (CBT)…
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Backups are running slowly on a server running Symantec anti-virus
SUMMARY Backups are running slowly on a server running Symantec anti-virus ISSUE Purpose Backups are running slowly on servers using Symantec anti-virus software Description Disable scans during backup operations for Symantec AV Cause Anti-Virus scans during backup operations will slow the operation by a considerable…
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Logs for WinPE Bare Metal
SUMMARY This article describes how to find the logs on the WinPE Bare Metal Media. ISSUE You boot from the Win PE Bare Metal Boot media on a VM or physical host after having created the media from a Windows Machine, and receive errors. There are several common causes of errors with Bare Metal booting. Most are network…