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Restore after disaster Torben Olsen – Systems Programmer

This report details an extensive test conducted to verify the complete restoration of critical server environments after potential total loss due to disaster. The objective was to ensure that systems could be operational in an alternate hosted data center, including critical components like Active Directory and Exchange. The multi-phase project included creating new backup servers, restoring domain controllers, and validating SQL and Exchange data integrity. This successful test demonstrated the feasibility of carrying out essential operations from remote backups while maintaining system integrity and performance.

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Restore after disaster Torben Olsen – Systems Programmer

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  1. Restore after disasterTorben Olsen – Systems Programmer Oslo 28-30. August 2014 Proof of the possibility of full restore in another environment Outside the parliament

  2. The grand test of restore • The goal of the test was to ensure the possibility to get all system up and running in a hosted datacenter, if all server environments, including the on-premise backup/restore control server was destroyed. • The test included recreation of the necessary backup servers, the AD, part of the exchange environment and part of the SQL servers. • (Folketinget was the first customer demanding a test including recreation of the backup/restore control server

  3. The general setup

  4. The general setup

  5. Step 1: Create a new backup/restore CommandServer • Windows 2008 installation. • CommVault-cs installation • From CommVault software DVD   • IP addresses and host name should be found. • SQL Database path could also be found in the design document • Installing CommCell implemented   • Check the SQL database paths are correct. • Reinstall all CommVault patches • Installing the Media Agent and Virtual Server Agent   • CommCell server installed time : 100 min

  6. Step 2: Getting the AD back • One Domain Controller was restored as a image

  7. Restore of the Domain Controller

  8. Step 3: Make sure the restored Domain controller is the one in charge - Seizing the DC

  9. The restored Domain Controller is now the master.

  10. Step 4: Get exchange back as a image • Ex2012mb01 has been restored. It took almost 11 hours. • All databases were mounted without error after VMware restore.

  11. Step 5: Test of the Exchange DB restore, in case of corrupt DB in the image restore • Restore of one exchange data via CommVault. • Stop the following services, as they will try to address in the database under restore: • Microsoft Exchange Mailbox Assistants • Microsoft Exchange Search Indexer

  12. Step 6: SQL restore • Complete server restore as image. Then, just as with exchange, a DB restore was tested.

  13. Conclusion • Restore the test was conducted and was shown that it was possible to restore servers in ATEA's data center from remote backup copy. • There was established a physical server in the data center with a copy of remote backup data. It took about 2 hours to restore CommVault servers and be ready to restore. • Then, a ESX server was set , where the servers was restored . • Restore speed test be comparable to the production environment. • Domain controller was restored and all domain roles were forced to run on this server. • Subsequently restored other servers and it was possible to log on to the FT accounts. • Exchange server had 1 restored data store and it was mounted correctly. • SQL Server was also restored, and it was possible to log on and data was correct in the tables.

  14. Thank you for your attention

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