Backup SQL Server Data Folder on Corrupt System (done by customer)Īll Study databases are located in the Data folder where SQL Server is installed. It is important that a new Ponemah system is setup in order to restore the studies. Relax and restore the user databases as needed.The following describes the action required to recover Studies that were created in Ponemah after a SQL Server Master database failure occurs.įailure of the master database is rare and most likely caused by a failing hard drive. As per this blog post, restore it with an alternative name such as “restore_master” for the both the database name and the database MDF and LDF files to avoid conflicts with the running SQL instance.Ĭopy those back over to your damaged SQL instance, rename the old ones and rename these restored back to the correct name.
Go and find yourself another SQL instance running the same version, restore the master backups there.
Setup.exe /QUIET /ACTION=REBUILDDATABASE /INSTANCENAME=MSSQLSERVER /SQLSYSADMINACCOUNTS=Domain\Username /SAPWD=blahblah1£23 /SQLCOLLATION=Latin_General_CI_AS_KS This method didn’t work no matter what media or setup.exe we used, it silently failed and gave no errors. There is a lot of mention on the internet about using /ACTION=REBUILDDATABASE to rebuild the system database to get you back to the point where SQL will start and will let you restore a backup of the system databases. Stop, think and ignore the interweb search results you get back. Take the disks out of maintenance mode and browse through to the data and logs volumes – we noted zero size user databases – those are gone for sure and need to be restored from backup one the system databases are fixed. In this case, a lot of repairs where made. Put the shared disks into maintenance mode in failover cluster manager and run chkdsk “drive” /F /X on all of them. If a backup is not available, it might be necessary to rebuild the log. An error occurred while processing the log for database 'master'.
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