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Difference between revisions of "Upgrading a DLS Multi-Node Environment"

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(Created page with " When upgrading DLS Multi-Node deployments, mind the following : * Always backup the DLS database in case of errors to revert back to a previous state if needed. * Perform ...")
 
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When upgrading DLS Multi-Node deployments, mind the following :
 
When upgrading DLS Multi-Node deployments, mind the following :
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* When an upgrade is performed in deployments with remote database ,a popup window will be displayed at the beginning of the upgrade requesting to disable Mirroring in order to get a database backup by either removing the mirroring and retry ('''retry'''), abort ('''abort''') or continue ('''ignore''').
 
* When an upgrade is performed in deployments with remote database ,a popup window will be displayed at the beginning of the upgrade requesting to disable Mirroring in order to get a database backup by either removing the mirroring and retry ('''retry'''), abort ('''abort''') or continue ('''ignore''').
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'''If you select the ignore option, the process continues but it leads to a failed message regarding database backup.'''
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'''In a simple upgrade scenario there is no need to stop and setup Mirroring again, and no restore is needed.'''

Revision as of 19:48, 23 November 2014

When upgrading DLS Multi-Node deployments, mind the following :

  • Always backup the DLS database in case of errors to revert back to a previous state if needed.
  • Perform a simple Update Installation of all nodes required as per regular Single Node upgrades.
  • Make sure that the installation is not executed concurrently on all nodes but one at a time.
  • Avoid as much as possible actions on the Network Load Balancer, the SQL server(s) and client connections to DLS and the Mobility feature while the upgrade takes place
  • When an upgrade is performed in deployments with remote database ,a popup window will be displayed at the beginning of the upgrade requesting to disable Mirroring in order to get a database backup by either removing the mirroring and retry (retry), abort (abort) or continue (ignore).

If you select the ignore option, the process continues but it leads to a failed message regarding database backup.


In a simple upgrade scenario there is no need to stop and setup Mirroring again, and no restore is needed.