MS Exchange server database leads to various errors. These errors make it quite difficult to work smoothly. Sometimes it happens that the Exchange server database file refuses to open. Any attempt to open the server’s database will leave you unsuccessful. Exchange database corruption is one of the reasons for such behavior. As a result, data cannot be approved. You cannot access the contents of the database. Use a backup to avoid such data loss situations. However, if the backup falls short when restoring data, then run Exchange recovery using a third-party tool.
With regard to the topic above, let’s study an error message. As discussed above, the Exchange server displays an error message on the screen when you try to open the Exchange server database. Database cannot be opened and when you see the details of the error, you see the following event log in the description:
Event type: error
Event Source: ESE
Event Category: General
Event ID: 489
Computer: computer name
Description: Process name [process id] filename: an attempt to open the file [pathfile name] for read-only access failed with [Error Code and Explanation]. Opening a file fails with an error[[[[-1022].
Root of the issue:
The ‘Error -1022 =’ JET_errDiskIO ‘= Disk I / O error’ is caused when a disk I / O error prevents Exchange from accessing the requested database page or a control file. This could be because of a disk or controller that is preventing you from accessing the disk (although it may be temporary). Also check the log for disk or input / output errors around the time of event 490. The problem occurs when the control file path is wrong, possibly due to a disk error.
To perform the above error “chkdsk / f / r ” command. If running this command doesn’t fix the problem, check the permissions on the Exchsrvr folder. Make sure that SYSTEM has full control over Exchsrvr and all subfolders (on each partition) that contain Exchange data.
If you are unable to mount databases, troubleshoot Windows NT file-level antivirus software that may be running on the Exchange server. Also check the log for disk or input / output errors around the time of event 490. Check and correct the path for the control file. You can also correct the root cause and use an updated backup to retrieve data from the database.
If all else fails, running the Isinteg fix and ExMerge command to a new information store will also help you fix the problem.
However, if no satisfactory results are found after using the above commands, choose a third party Exchange Recovery tool. There are many tools on the market that have the main purpose restore exchange server.
Stellar Phoenix Mailbox Exchange Recovery is an advanced and utility that performs successfully Recovery from Exchange Server in all cases of corruption. This Exchange Recovery Software recovers all data from .edb files in messages, notes, tasks, attachments and in other objects.