Replication

Acronis Cyber Protect Cloud: Backup Replication

Replication is creating backups in multiple locations with a single Protection plan. This feature allows replicating backups from a local/network storage to multiple local/network storage, to Acronis cloud, or to an on-premises Cloud storage based on Acronis Cyber Infrastructure.

There are 2 replication methods:

  • Replication in Protection plan
  • Replication in mini-plan

Replication in Protection plan

To set up replication in Protection plan:

Acronis Cyber Protect 15, Acronis Cyber Protect Cloud: Activity fails with "DNS hostname resolution error"

Symptoms

Activity fails with:

DNS hostname resolution error

Acronis Cyber Protect Cloud, Acronis Cyber Backup: operation fails with "data is corrupted: CRC mismatch or internal data structures mismatch" or "The archive is corrupted"

Symptoms

1.  Operation with a backup archive (backup, replication, recovery, etc.) fails with one of the following messages:

Data is corrupted: CRC mismatch or internal data structures mismatch 

OR

The archive is corrupted

Acronis Cyber Protect: VM Replication plan does not start after the first run

Symptoms

  1. You created and successfully started a VM Replication plan,
  2. After the first run, the plan does not start automatically.
  3. If you check the Plans tab, '0 devices' is shown for the affected replication plan.

Cause

Issue in the product. The replication plan is revoked from VM when the replication process is finished.

Solution

This issue is fixed in Acronis Cyber Protect Cloud 21.10 (Build 28037). Please update Virtual Appliance to the latest build.

 

Acronis Cyber Protect: VM backup or running VM from backup fails with "The specified module could not be found" if Microsoft Visual C++ 2017 Redistributable is not installed with VMware VDDK 7.0

This article applies to:

Acronis Cyber Protect, Acronis Cyber Backup: VM replication is stuck at 100%

Symptoms

VMware VM replication reaches 100% and hangs. No error or warning is displayed.

Logs from /var/run/log/hostd.log on ESX host contain a message similar to the following :

2021-08-13T22:28:12.116Z error hostd[2100679] [user@6876 sub=Req@vim25/7.0.1.0] length of HTTP request body exceeds configured maximum 100000

Cause

Limitation on the VMware side: it does not allow SOAP API requests longer than 100000 symbols

Solution

To work around the issue, increase the maximum length of API requests in config:

Acronis Cyber Protect, Acronis Cyber Backup: Backup fails with "Windows error: (0x80070544) The validation information class requested was invalid"

Symptoms

Backup to NAS or a different activity(replication, validation) fails with:

 Windows error: (0x80070544) The validation information class requested was invalid

Acronis Cyber Protect Cloud, Acronis Cyber Protect: Backup fails with "Failed to open the backup location. Windows error: (0x80070002) The system cannot find the file specified"

Symptoms

Backup, replication or another activity fails with:

The path <path> does not exist.

For example: The path "F:/" does not exist.

Or, in older builds:

Windows error: (0x80070002) The system cannot find the file specified