Knowledge Base

Microsoft Exchange Server uses throttling policies to manage the performance of an Exchange organization. When an Exchange organization is created, a default throttling policy is automatically created that implicitly governs all users within that organization. An administrator may create custom policies that comply with the requirements of the...

This article provides instruction for troubleshooting virtual machine backup failures in Acronis Cyber Backup virtualization solutions. Solution Follow these steps to troubleshoot virtual machine backup failures: Get familiar with technology of virtual machine backup in the About part. Check for known issues in the Known issues...

Symptoms You restore a machine to dissimilar hardware and apply Acronis Universal Restore. The process completes successfully, but the restored machine goes to BSoD with error "Stop 0x0000007B". Cause One of the possible causes is that you are using a Group Policy setting to prevent the installation of devices. Acronis Universal...

Current products Viewing build number in Acronis True Image 2019 (Windows and Mac) In Windows: Select Account tab on the left panel. Check the build number: On Mac: Click Acronis True Image -> About Acronis True Image. Check the build number: Viewing build number in Acronis True Image 2018 (Windows and Mac) In Windows:...

Instruction on how to troubleshoot and resolve issues with Acronis Universal Restore or Acronis Universal Deploy About Universal Restore and Universal Deploy Universal restore technology is intended to provide ability to boot operating system after migration to dissimilar hardware. Most common issues are related to non-bootable operating system...

Symptoms After installing security update for Exchange Server, Exchange mailbox backups fail with the following error: Cannot open public folder or mailbox.  Access is denied Example of full log: click to expand | Error 0x5b000b: Cannot open public folder or mailbox 'mailbox@testserver.com'.  | trace level: error...

Symptoms You are restoring an Exchange mailbox. The original mailbox does not exist anymore and should be recreated during recovery. Recovery fails with: Error code: 397 Module: 91 LineInfo: 0x8BF116F82F62BBEF Fields: {"$module":"arx_agent_fork_vsa64_6200"} Message: Nothing to recover. For the details, see the log. Last...

Symptoms Backup or a different operation (replication, recovery, etc) fails with the following error: The archive is invalid or its type is unsupported Example of full error log:  | error 0x4001fb: Failed to open the backup archive by the ID. | line: 0xa1d3981537c68833 | file: e:\235\enterprise\backup\impl\location_impl.cpp:821 |...

Symptoms In your backup plan, you have selected one or more File filters. You start noticing performance issues: slow backups, slow browsing of recovery points in cPanel/Plesk UI, or sporadical timeout failures.  Solution Remove all the File filters set in the backup plan: In Cyber Protection Console, navigate to Plans and...

Symptoms After a backup, you find in logs information that the backup switched to sector-by-sector mode. This sector-by-sector mode is slower than the default method. The messages in the logs look similar to these: Error code: 46 Module: 7 LineInfo: a5695862aaf8e75e Fields: PartitionId : 219 Message: Forced sector-by-sector mode...