Carbonite Support Knowledge Base

Security Bulletin for Carbonite Safe Server Backup 09-12-2025

RCE vulnerability has been discovered in OpenText™ Carbonite Safe Server Backup.

Configuring Azure for Using Modern Authentication with Carbonite Safe Server Backup

Starting with Carbonite Safe Server Backup (CSSB) 6.8.1 we will support modern authentication with Exchange Online. There are additional steps required to ensure modern authentication will function properly with CSSB. This article explains the procedure for registering Exchange Online in the Azure portal and setting up proper Azure App credentials for use with CSSB.

Recreating the Carbonite Safe Server Backup Desktop Shortcut

If you cannot find the Carbonite Safe Server Backup icon on your desktop, this does not necessarily indicate that you have uninstalled the program. It's possible to accidentally delete the desktop shortcut without uninstalling Carbonite. If Carbonite is still installed, you can recreate the desktop icon using the instructions in this article.

Known Issue: An "Access Denied" Message Appears On The Backup Page When Configuring a Microsoft SQL Server Backup Set and Cannot Be Dismissed

When creating a Microsoft SQL Server backup set, "Access Denied" appears below the list of databases, near a button labelled Check Access or Allow Access.

System Requirements for Carbonite Safe Server Backup For CSSB 5.x & 6.x Classic

The current version of the product works for Windows XP (Home or Pro) with SP2 or higher, Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows Small Business Server 2003, Windows Server 2003 SP2, Windows Server 2003 R2, Windows Small Business Server 2008, Windows Server 2008, Windows Server 2008 R2, Windows Small Business Server 2011, Windows Server 2012, and Windows Server 2012 R2 operating systems.

Microsoft SQL Server Backup For CSSB 5.x & 6.x Classic

Users can perform VDI-based backups of a specific database on a specific SQL server instance. Full, Differential, and Incremental (Log) backups are supported.

Determining Your Version of Carbonite Safe Server Backup

You can locate the version of the product you are running through the Carbonite Safe Server Backup user interface.

Hyper-V Incremental Backups on Windows Server 2008 R2 Fail

If you are running Windows Server 2008 R2, Hyper-V Incremental backups mail fail with the following error message: A vss snapshot could not be created. Please review backuperrors.txt found at < file path >. Within the backuperrors.txt file, you will see a message similar to the following: FailureMsg="No snapshots to revert were found for virtual machine".

Microsoft Exchange Server Database Backup For CSSB 6.x Enhanced

The product supports full, incremental and differential backups of Microsoft Exchange Mailbox Databases and Public Folder Databases. CSSB performs VSS based backup of Store database files (.edb and .stm), transaction logs, and checkpoint files for all the Mounted Storage Groups.

The Exchange Server is too Busy to Process the Request

When taking a mailbox-level backup, the backup may fail with an error stating: "The following mailboxes could not be backed up. The Exchange server is too busy to process the request."

List of Windows Events Created by Carbonite Safe Server Backup

Carbonite Safe Server Backup logs an event in the Windows Application Event logs after every backup, upload, download, and restore operation. These events can be used as another way to track and monitor the status of your backups.

How to Find the Exchange Server URL

Exchange Local Mailbox backups will attempt to use Exchange Autodiscovery to detect and connect to the Exchange server. If Autodiscovery fails for any reason, you will be prompted to enter the URL of your Exchange server. The product cannot connect to Exchange without this information, and the backups will fail. There are two methods to find your Exchange Server's URL.

Known Issue: Internal Error Appears When Configuring a Microsoft SQL Server Backup Set

When configuring a Microsoft SQL Server backup set, the product relies on the SQL VSS Writer to generate the list of databases to be backed up. If the SQL VSS Writer is not available, the list of databases to back up does not appear and an 'Internal Error' is generated.

Known Issue: The A: or B: Drives Cannot be Selected for Backup by Carbonite Safe Server Backup

When configuring a File System backup, the A: and B: drives do not appear in the file tree, and thus cannot be selected. These drives are reserved by Windows for floppy disks.

Restoring Microsoft SQL Server Fails Due to Damaged System Databases

The restore of Microsoft SQL Server databases with the product requires that the SQL Server be online and available. If the SQL server cannot start, all attempts to restore will fail.

Configuring Carbonite to Work With Authenticated Proxy Servers For CSSB 6.x Enhanced

You can use authenticated proxy servers with CSSB 4.7 and above. The username and password for the proxy server must be manually entered into the appropriate configuration file.

Known Issue: Carbonite Safe Server Backup Installation Fails with Error 1327

When attempting to install Carbonite Safe Server Backup, the installation fails with Error 1327.

Performing System State Recovery on Windows Small Business Server 2011

In order to perform a System State restore on Small Business Server (SBS) 2011, the computer needs to be booted into Directory Service Restore Mode (DSRM) since SBS 2011 is the Active Directory Domain controller.

Support for Microsoft SQL Server 2012 AlwaysON Availability Group

The product provides limited backup support for Microsoft SQL Server 2012 AlwaysON Availability Group. Only databases in the Primary replica can be backed up. Databases in Secondary replica cannot be backed up.

Enabling and Disabling Archive Consistency Checks for Carbonite Safe Server Backup Local Recovery

Carbonite Safe Server Backup (CSSB) has the ability to check the consistency of the backup archive before it extracts your data for restore through what is known as a Cyclic Redundancy Check (CRC). This ensures that the archive has not become corrupted and that your data will be intact after restoration. However, this process can take a long time (depending on the size of the archive). In some situations, it may be your priority to restore all available data as quickly as possible.

Known Issue: Carbonite Safe Server Backup Fails to Create Backup Directory

If you are using a mapped drive as your local backup folder and receive an error message stating the backup failed to create a backup directory, verify that the amandabackup / CarboniteUser user has full read/write permissions to the mapped drive. The amandabackup / CarboniteUser user may be a local user or a domain user depending on your environment.

Using Advanced Filtering with Carbonite Safe Server Backup

You can use advanced filtering to locate files or folders to restore.

Known Issue: Carbonite Safe Server Backup Service(s) Goes into a Bad State After Upgrading

After upgrading to a new version, CSSB service (s) goes into a bad state where the servic(s) are stopped, missing, not running, or cannot be started.

Known Issue: Windows User Access Control Prevents Changes to Carbonite Safe Server Backup Settings

Windows User Access Control (UAC) may prevent you (even with administrator privileges) from altering Carbonite Safe Server Backup (CSSB) settings.

File Types Excluded from the Carbonite Safe Server Backup File System Backup

Microsoft recommends that certain files not be backed up as part of a File System backup. The product honors this recommendation, and adds a few exclusions regarding its own files.

DOC: Carbonite Safe Server Backup User Guide (CSSB 6.x) For CSSB 6.x Enhanced

Carbonite Server User Guide for 6.x

Restoring a Microsoft SQL Server For CSSB 6.x Enhanced

Microsoft SQL Server backups can be restored to the original computer or to a different computer.

Carbonite Safe Server Backup supporting RAID setup

FAQ: How do I configure a backup set with Carbonite Safe Server Backup?

How do I configure a backup set with Carbonite Safe Server Backup?

Restoring an Oracle Server For CSSB 5.x & 6.x Classic

The product supports the restore of Oracle databases to the same server or to an alternate server. Oracle restores require access to the SQL*Plus utility that is included with the Oracle database.

Oracle Server Backup For CSSB 5.x & 6.x Classic

Oracle backup types will no longer be supported in version 6.2 and higher.

Message: "Carbonite Safe Server Backup Controller and/or Carbonite Safe Server Cloud Controller Could not be Started due to Log on Failure"

When the product attempts to perform some action, such as saving a backup set, starting a backup, or changing log level, you might receive an error message. However, the error can appear at any time. One of the errors could be as follows: Carbonite Safe Server Backup Controller could not be started due to a log on failure, Carbonite Safe Server Cloud Controller could not be started due to a log on failure, Carbonite Safe Server Backup Controller and Carbonite Safe Server Cloud Controller could not be started due to a log on failure.

Known Issue: Carbonite Safe Server Backup Service(s) Goes into a Bad State

When Carbonite Safe Server Backup attempts to perform some action, such as saving a backup set, starting a backup, or changing log level, you might receive an error message stating that one of CSSB's services could not be started. However, the error can appear at any time.

Updating to the Latest Version of Carbonite Safe Server Backup

You can update to the latest version of Carbonite Safe Server Backup by logging into your Carbonite account.

Uninstalling Carbonite Safe Server Backup For CSSB 6.x Enhanced

Uninstalling from your computer leaves your data vulnerable to accidental deletion and disk failures. You would normally want to uninstall to correct a problem with the installation, or end your subscription with Carbonite. You can uninstall through the Start menu or with a feature in the Control Panel.

Uninstalling Carbonite Safe Server Backup For CSSB 5.x & 6.x Classic

Uninstalling from your computer leaves your data vulnerable to accidental deletion and disk failures. You would normally want to uninstall to correct a problem with the installation, or end your subscription with Carbonite. You can uninstall through the Start menu or with a feature in the Control Panel.

Routing Carbonite Safe Server Backup Network Traffic

It is sometimes necessary to route internet traffic for performance, compliance, or other reasons. The product reaches out to several endpoints, and access must be granted to all of them. CSSB communicates over SSL on port 443 for all three endpoints.

Installing Carbonite Safe Server Backup For CSSB 6.x Enhanced

You can install Carbonite Safe Server Backup by signing into your account on our website.

Restoring a Microsoft Exchange Server Database For CSSB 6.x Enhanced

The product supports the restore of Microsoft Exchange databases to the same server or to an alternate server.

Message: "Carbonite Safe Server Backup Controller and/or Carbonite Safe Server Cloud Controller Could not be Started Because Another Program is Using The Same Port" For CSSB 6.x Enhanced

When the product attempts to perform some action, such as saving a backup set, starting a backup, or changing log level, you might receive an error message. However, the error can appear at any time. One of the errors could be as follows: Carbonite Safe Server Backup Controller could not be started because another program is using the same port, Carbonite Safe Server Cloud Controller could not be started because another program is using the same port, Carbonite Safe Server Backup Controller and Carbonite Server Cloud Controller could not be started because another program is using the same port.

Frequently Asked Questions Regarding Carbonite Safe Server Backup Single-Server Subscriptions For CSSB 6.x Enhanced

A single-server subscription is available for Carbonite Safe Server Backup. If you have a single-server plan, CSSB can only be active on one server at a time.

Restoring a MySQL Server For CSSB 6.x Enhanced

The product supports the restore of MySQL databases to their original location or as a .sql file on disk that can be imported manually to any compatible MySQL Server.

Managing Your Private Encryption Key for Carbonite Safe Server Backup For CSSB 6.x Enhanced

By default, Carbonite Safe Server Backup manages your encryption key for you using Advanced Encryption Standard (AES) 128-bit (or better) encryption. In the event of a disaster recovery, you only need to remember your account username and password to access the files in your backup. If you choose to manage your private encryption key, your backups will be encrypted using AES 256-bit encryption. The private encryption key will be required in order to restore your backed up data.

Managing VSS Shadowstorage Space for Carbonite Safe Server Backup

The product, like all VSS-based backup applications, requires space for VSS snapshots on any disk which contains data that is part of a backup. This space is known as shadowstorage. Backups will usually fail if there is not enough shadowstorage space for snapshots.

Storage Quota Exceeded for Carbonite Safe Server Backup (6.x) For CSSB 6.x Enhanced

To stop receiving this error, you must purchase additional storage, update the retention settings, or delete some data from the cloud.

Proxy Servers and VPN

Carbonite Safe requires a secure connection in order to install and back up your important files on your computer.

Microsoft SQL Server Backup For CSSB 6.x Enhanced