Exchange

Symptoms

The recovery of an Exchange database to original location fails with:

Error code: 254
Module: 91
LineInfo: 0x7A0C574AD2E3F5C3
Fields: {"$module":"arx_agent_fork_vsa64_12960"}
Message: It is not allowed to overwrite database <database> during recovery.

Cause

The This database can be overwritten by a restore option for this Exchange database is disabled. This is the embedded protection of Microsoft Exchange Server from accidental overwriting of its databases.

By default, during an operation, Acronis Backup(Advanced) for Exchange will save its temporary files to the \ProgramData\Acronis\Temp folder on the machine where Acronis Agent for Exchange is installed (during backup), or either on the Agent machine or Acronis Management Server machine (during browsing of backups and restore).

You may want to change this if the capacity of the disk with the ProgramData folder on the affected machine (Agent or AMS) is an issue.

On one operating system regular file-level or disk-level backups and Microsoft Exchange Server backup tasks are always queued and performed one by one by the service_process.exe process.

The tasks cannot be run simultaneously.

 

Register the MAPI PST service by using either the MFCMAPI tool (go to Profile -> Advanced profile -> Add services to MAPISVC.INF... and select PST) or Mergeini.exe

Creating backups from MS Exchange using the Acronis Exchange Agent causes log entries in PowerShell. This can be solved by deleting the PowerShell subkey under Event Log in Windows Registry.

Upgrade to Microsoft Exchange 2010 SP1 can corrupt Windows PowerShell. However, PowerShell is required for Acronis Backup to work with Microsoft Exchange 2010 correctly. Use the instructions from the external sources provided in this article to repair Windows PowerShell.

Table of trial limitations of Acronis products

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