Acronis Backup 11.5 fully supports Hyper-V generation 2 virtual machines starting with Update 6 (build 43909 or 43713 depending on the localization)
backup failure
This article will help you to troubleshoot issues with backup via Command-line utility in Acronis Backup.
Symptoms
You run a backup using Command-line utility, it fails with an error message.
Note:
Symptoms
Backup fails with the following error:
The activity has failed because the machine has been shut down unexpectedly
Symptoms
- You have set up a Disks backup. The initial backup (and the following incremental backups, if any) worked correctly
- You install an upgrade to macOS.
- When you try to run an incremental backup after macOS upgrade, the operation fails with:
The last backup has failed. No current partition
Cause
macOS upgrade changed the unique volume identifier for the source disk, while the backup task configuration still refers to the old volume identifier.
Symptoms:
1) Basic error message stack in Backup Console:
Status:Error
Common I/O error.
2) Details of error message in Backup Console (click on the Details button):
Affected environments:
The issue happens on the following operating systems when when the SHA2/SHA256 support patches from Microsoft have not been installed, or have been installed only recently (after encountering problems with backups):
Symptoms
- Backup and other activities to Cloud fail with “Request to cloud storage ':80/api/1/rpc/' has failed with code '504'”, “Access to Cloud storage is denied. Disable 2FA for tenant to enable backups”, or "The request failed: Status 503 : Description: Service unavailable"
- Overall performance issues in the Management portal and Cyber Protection console.
Solution
Issue is resolved.
Symptoms
Attempting a Microsoft 365 Cloud-to-Cloud (C2C) backup job fails with the following error:
A configuration error: 'Could not access to Drive 'b!XHg8hoZeCkKvMNIhzQxlEDATIZDBKWROls50ZZtT0BdVgIJASW43SKq-Xdj34Aqo': ms graph error httpStatus: 429, code: activityLimitReached, message: The request has been throttled'
Symptoms
- Agent was updated to C22.11, build 15.0.30991
- Backup fails with “Failed to set network isolation status: Error 0x2d20004: {"domain":"AGENT_CORE","code":"BAD_GATEWAY","debug":{"msg":"network-isolation-unit unit is offline"}}”
Symptoms
- Backup activity fails with the error message "Failed to verify the TLS/SSL certificate while connecting to the cloud".
Cause
The root CA certificate of cloud.acronis.com was updated from Go Daddy Root Certificate Authority - G2 to DigiCert Global Root CA.
Symptoms
- Backup fails with "Operation failed due to a temporary issue in the cloud storage"
- In the activity details, you see the errors "Object is invalid", "Invalid descriptor":
Symptoms
- Starting from 21st of March, backups to Acronis Cloud fail with the errors: “[Archive Server]: unable to resolve dependent service” or “i/o timeout”
- This issue mostly affects US DCs.
Cause
Network issues on DCs.
The issue has been fixed.
Symptoms
When the user attempts to perform a backup or recovery of Microsoft 365, the operation fails with one or more of the following error messages:
Symptoms
- Backup or another activity fails with the error "No target was specified or the target is invalid"
Cause
The issue is caused by a corrupted archive.